1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4632231c8255432091a94f46af72f83e7a4fe3bb4e3d79dc9b95bce9463b4cba. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9c6ecd13-7736-4e02-b621-07256e17987d.json and https://artists.proofprofile.net/proofs/artist/9c6ecd13-7736-4e02-b621-07256e17987d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba3ecbe838854225f9bd81da6e945a1badb8861abfe02b89377803bf30ed48fb. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMBZ92268000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d68ebbb411c4c34cfcdf1fe8726882f34da6b1db04bc0c771aa683335ea2b73. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMBZ92268001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd726ad60e3b0a64891505f4c6fe82c08a5e472819858825a7a14c024748376d4. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMBZ92268002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8533399c35e9131616bdf8fb4af89c2bedbff03f837ec5dad5f7733bbbca117e. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMBZ92268003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cf7aea0ec2ec682988c8b74f1d789e70a441882cc1e41880a0e6b6974e5010a. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMBZ92268004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0456eb66d03e4d27d81384d9c979d87b44dc48401c5ac2c5d71d9d1137ec68bf. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMBZ92268006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45fab55e5834322f9209651ce372af8ea6b98bac8055e0e95afde57d393c60b6. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMBZ92268007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf70803c5aa4d3e9f2afe50159f1ef77dbc4217beccd4129dab3d9e44a60d7807. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMBZ92268008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc28b09971303737c5efc7fcb4dfebcf6c6fd49bff682e636bd2b44274f46d804. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMBZ92268010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbe0b71a4b45139ed4d87e04451a8f7ad2a3d5867ce55d6c35c82acdc29d4757. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMBZ92268012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x457093b31f4ec6ab271232e4041d236af7893b0bfe98e20373d11c07f3a55275. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMBZ92268014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b7198041f7532805cb15ac4cbabc3f38c6e5047292685f2bf535d1506b98083. Chain 2 (Bitcoin): anchored in block 960175 (2026-07-30T00:16:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMBZ92268005.
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Eddy Appetite's Bulletproof Steering Wheel
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5b916fbfd9f9bb5f121cdf4b5901245537cbd9ec09601e0fc400a0791687ab5. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMBZ92268009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68d3f513de827eae40c1a6a001d862eecd806a930d6afcc9d10d9063f125c8df. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMBZ92268011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd483b2830885299954ada68f7bbf16d3b4fa7699d36036362206129e965405a4. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMBZ92268013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb91c41036395f0160629bf7f83ac5998a9411c2aa899a166eff733b3e457297. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMBZ92268015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa11614010d8f9fcac745f12f15518b823d31894279a9199717e2470cc7e59bf. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMBZ92268016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f40e7475e9c0538fa440bc593709650cf5ef6cb7bdb7b0fba1836537cfc0c7e. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMBZ92268017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf997be9978ff47a79f6b43b2ec75b3ad46a207bcfecfd549e3841fa65ab288dc. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM4TW1831811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x990af92d103ee67aa4db2aa1eb7fa393d68eab7aa97a78e2cafb763797a98525. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM4TW1831812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef58b0e21ff857fa5099791942733f0ae05bccef3d79f1ba7e3a193da54fe936. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM4TW1831813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x711df386201f78cbf99d7b089bd6466ff4c30b094826caa8acf5380b8bfbd70c. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM4TW1831814.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a5766c441f0fdbc41a557d6e7636fa4e5ca5a783b122cbe8c2380b9de9c1c09. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM4TW1831815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc36d8e26828806e01efda2c561c7b140aeff56ab75ec83dee778fca3dd03729. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM4TW1831816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84793020de62bec6ab589e24421012cfad5cdd60cb72887b5a87e5c5f2712fa0. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM4TW1831817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd663d28d0f9465d2b27820cad45ea24bae941a75bd9da4318015c78a78804f6c. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM4TW1831818.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90304c1da8b5f9e3e1f29190c559b0ef78033649487e8b5b1594989d902371c8. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM4TW1831819.
Eddy Appetite's House of Definitely Legal Oddities
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb38f3c06b2dfa1ca993cc1ca2421cbbee3c1fe5904a195da04130d0687c4039f. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM4TW1831820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd255d616b4b2e70457417b1db58c58f13fc0854dba2266c022eb1e883c81a429. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM4TW1831821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35f7e98597e0ddf5d2103b7aa4cf6b19ffb36442193a85182bb596832dbba068. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM4TW1831822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ac4ceadb192dd25304577cfd1e84b92902a3f4f382562ff5d3bf2a768849705. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM4TW1831823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbb83a51c9fabfc5fb9228abe710de8d577ed920498eb2d828c7292de4c1d326. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM4TW1831824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdb5ac634aa675150823fe858512cf529fe37a9d8f1756f7c7b807b37cbe251e. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM4TW1831825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b17ed94918b6026b052a956a2a8b33294d9350f104902e175e719dc68f735e8. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM4TW1831826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb44f3c8b2a5701d94d2d0d5785c469310f1b4c200fa99f843cf193e794dbd5b. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM4TW1831827.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3924200f75cbcc1f0193d128417ac2a47d347b3250729ce0ff7285c68439bd2. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM4TX2117393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x843e46163c82c51374c6e7b8589f7eba7feb0adca4e8f5b2f0003d4f37cba7a4. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM7282367581.