mirror of https://github.com/zcash/zips.git
ZIP 244: fix heading levels for Orchard digests.
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
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Daira Hopwood
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@ -190,44 +190,44 @@ T.3b.iii.2: enc_ciphertext[564..] (post-memo Poly1305 AEAD tag of field encoding
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T.3b.iii.3: out_ciphertext (field encoding bytes)</pre>
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<p>The personalization field of this hash is set to:</p>
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<pre>"ZTxIdSOutN__Hash" (2 underscore characters)</pre>
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<section id="t-4-orchard-digest"><h9><span class="section-heading">T.4: <code>orchard_digest</code></span><span class="section-anchor"> <a rel="bookmark" href="#t-4-orchard-digest"><img width="24" height="24" src="assets/images/section-anchor.png" alt=""></a></span></h9>
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<p>In the case that Orchard actions are present in the transaction, this digest is a BLAKE2b-256 hash of the following values</p>
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<pre>T.4a: orchard_actions_compact_digest (32-byte hash output)
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</section>
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</section>
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</section>
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<section id="t-4-orchard-digest"><h6><span class="section-heading">T.4: orchard_digest</span><span class="section-anchor"> <a rel="bookmark" href="#t-4-orchard-digest"><img width="24" height="24" src="assets/images/section-anchor.png" alt=""></a></span></h6>
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<p>In the case that Orchard actions are present in the transaction, this digest is a BLAKE2b-256 hash of the following values</p>
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<pre>T.4a: orchard_actions_compact_digest (32-byte hash output)
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T.4b: orchard_actions_memos_digest (32-byte hash output)
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T.4c: orchard_actions_noncompact_digest (32-byte hash output)
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T.4d: flagsOrchard (1 byte)
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T.4e: valueBalanceOrchard (64-bit signed little-endian)
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T.4f: anchorOrchard (32 bytes)</pre>
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<p>The personalization field of this hash is set to:</p>
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<pre>"ZTxIdOrchardHash"</pre>
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<p>In the case that the transaction has no Orchard actions, <code>orchard_digest</code> is</p>
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<pre>BLAKE2b-256("ZTxIdOrchardHash", [])</pre>
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</section>
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<section id="t-4a-orchard-actions-compact-digest"><h9><span class="section-heading">T.4a: orchard_actions_compact_digest</span><span class="section-anchor"> <a rel="bookmark" href="#t-4a-orchard-actions-compact-digest"><img width="24" height="24" src="assets/images/section-anchor.png" alt=""></a></span></h9>
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<p>A BLAKE2b-256 hash of the subset of Orchard Action information intended to be included in an updated version of the ZIP-307 <a id="id9" class="footnote_reference" href="#zip-0307">8</a> <code>CompactBlock</code> format for all Orchard Actions belonging to the transaction. For each Action, the following elements are included in the hash:</p>
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<pre>T.4a.i : nullifier (field encoding bytes)
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<p>The personalization field of this hash is set to:</p>
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<pre>"ZTxIdOrchardHash"</pre>
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<p>In the case that the transaction has no Orchard actions, <code>orchard_digest</code> is</p>
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<pre>BLAKE2b-256("ZTxIdOrchardHash", [])</pre>
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<section id="t-4a-orchard-actions-compact-digest"><h7><span class="section-heading">T.4a: orchard_actions_compact_digest</span><span class="section-anchor"> <a rel="bookmark" href="#t-4a-orchard-actions-compact-digest"><img width="24" height="24" src="assets/images/section-anchor.png" alt=""></a></span></h7>
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<p>A BLAKE2b-256 hash of the subset of Orchard Action information intended to be included in an updated version of the ZIP-307 <a id="id9" class="footnote_reference" href="#zip-0307">8</a> <code>CompactBlock</code> format for all Orchard Actions belonging to the transaction. For each Action, the following elements are included in the hash:</p>
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<pre>T.4a.i : nullifier (field encoding bytes)
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T.4a.ii : cmx (field encoding bytes)
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T.4a.iii: ephemeralKey (field encoding bytes)
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T.4a.iv : encCiphertext[..52] (First 52 bytes of field encoding)</pre>
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<p>The personalization field of this hash is set to:</p>
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<pre>"ZTxIdOrcActCHash"</pre>
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</section>
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<section id="t-4b-orchard-actions-memos-digest"><h9><span class="section-heading">T.4b: orchard_actions_memos_digest</span><span class="section-anchor"> <a rel="bookmark" href="#t-4b-orchard-actions-memos-digest"><img width="24" height="24" src="assets/images/section-anchor.png" alt=""></a></span></h9>
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<p>A BLAKE2b-256 hash of the subset of Orchard shielded memo field data for all Orchard Actions belonging to the transaction. For each Action, the following elements are included in the hash:</p>
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<pre>T.4b.i: encCiphertext[52..564] (contents of the encrypted memo field)</pre>
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<p>The personalization field of this hash is set to:</p>
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<pre>"ZTxIdOrcActMHash"</pre>
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</section>
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<section id="t-4c-orchard-actions-noncompact-digest"><h9><span class="section-heading">T.4c: orchard_actions_noncompact_digest</span><span class="section-anchor"> <a rel="bookmark" href="#t-4c-orchard-actions-noncompact-digest"><img width="24" height="24" src="assets/images/section-anchor.png" alt=""></a></span></h9>
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<p>A BLAKE2b-256 hash of the remaining subset of Orchard Action information <strong>not</strong> intended for inclusion in an updated version of the the ZIP 307 <a id="id10" class="footnote_reference" href="#zip-0307">8</a> <code>CompactBlock</code> format, for all Orchard Actions belonging to the transaction. For each Action, the following elements are included in the hash:</p>
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<pre>T.4c.i : cv (field encoding bytes)
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<p>The personalization field of this hash is set to:</p>
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<pre>"ZTxIdOrcActCHash"</pre>
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</section>
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<section id="t-4b-orchard-actions-memos-digest"><h7><span class="section-heading">T.4b: orchard_actions_memos_digest</span><span class="section-anchor"> <a rel="bookmark" href="#t-4b-orchard-actions-memos-digest"><img width="24" height="24" src="assets/images/section-anchor.png" alt=""></a></span></h7>
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<p>A BLAKE2b-256 hash of the subset of Orchard shielded memo field data for all Orchard Actions belonging to the transaction. For each Action, the following elements are included in the hash:</p>
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<pre>T.4b.i: encCiphertext[52..564] (contents of the encrypted memo field)</pre>
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<p>The personalization field of this hash is set to:</p>
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<pre>"ZTxIdOrcActMHash"</pre>
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</section>
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<section id="t-4c-orchard-actions-noncompact-digest"><h7><span class="section-heading">T.4c: orchard_actions_noncompact_digest</span><span class="section-anchor"> <a rel="bookmark" href="#t-4c-orchard-actions-noncompact-digest"><img width="24" height="24" src="assets/images/section-anchor.png" alt=""></a></span></h7>
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<p>A BLAKE2b-256 hash of the remaining subset of Orchard Action information <strong>not</strong> intended for inclusion in an updated version of the the ZIP 307 <a id="id10" class="footnote_reference" href="#zip-0307">8</a> <code>CompactBlock</code> format, for all Orchard Actions belonging to the transaction. For each Action, the following elements are included in the hash:</p>
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<pre>T.4c.i : cv (field encoding bytes)
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T.4c.ii : rk (field encoding bytes)
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T.4c.iii: encCiphertext[564..] (post-memo suffix of field encoding)
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T.4c.iv : outCiphertext (field encoding bytes)</pre>
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<p>The personalization field of this hash is set to:</p>
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<pre>"ZTxIdOrcActNHash"</pre>
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</section>
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</section>
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<p>The personalization field of this hash is set to:</p>
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<pre>"ZTxIdOrcActNHash"</pre>
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</section>
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</section>
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</section>
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10
zip-0244.rst
10
zip-0244.rst
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@ -379,8 +379,8 @@ The personalization field of this hash is set to::
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"ZTxIdSOutN__Hash" (2 underscore characters)
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T.4: ``orchard_digest``
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"""""""""""""""""""""""
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T.4: orchard_digest
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```````````````````
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In the case that Orchard actions are present in the transaction, this digest is
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a BLAKE2b-256 hash of the following values ::
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@ -400,7 +400,7 @@ In the case that the transaction has no Orchard actions, ``orchard_digest`` is :
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BLAKE2b-256("ZTxIdOrchardHash", [])
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T.4a: orchard_actions_compact_digest
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""""""""""""""""""""""""""""""""""""
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''''''''''''''''''''''''''''''''''''
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A BLAKE2b-256 hash of the subset of Orchard Action information intended to be included in
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an updated version of the ZIP-307 [#zip-0307]_ ``CompactBlock`` format for all Orchard
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@ -417,7 +417,7 @@ The personalization field of this hash is set to::
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"ZTxIdOrcActCHash"
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T.4b: orchard_actions_memos_digest
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""""""""""""""""""""""""""""""""""
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''''''''''''''''''''''''''''''''''
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A BLAKE2b-256 hash of the subset of Orchard shielded memo field data for all Orchard
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Actions belonging to the transaction. For each Action, the following elements are included
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@ -430,7 +430,7 @@ The personalization field of this hash is set to::
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"ZTxIdOrcActMHash"
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T.4c: orchard_actions_noncompact_digest
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"""""""""""""""""""""""""""""""""""""""
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'''''''''''''''''''''''''''''''''''''''
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A BLAKE2b-256 hash of the remaining subset of Orchard Action information **not** intended
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for inclusion in an updated version of the the ZIP 307 [#zip-0307]_ ``CompactBlock``
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