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 0x122184d44facc59e6453e3c04243f8ab00b6877d99437dc871b4be06bf7babf4. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/97e10271-feb5-4234-9320-8f26c9c2d05c.json and https://artists.proofprofile.net/proofs/artist/97e10271-feb5-4234-9320-8f26c9c2d05c.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 0xd5b72f90f25c34cfb75cd5c264ef78fab6c473276bd6ea87d2a9ca42ca39ec31. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/GX5MY2115503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cc156e5d31f93e1b925d1f9328d23496a518c92a4f381b550bfed526d9f0283. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/GX5MY2115504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61d58aca7766db13fd3151571719e1fc418aedfd842dd07cf81724ccac24bfcb. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/GX5MY2115506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79cd0b25f0feffc193b2e590e32ef4e4b789523d64d4fc8ec711da559d78ea9a. 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/GX5MY2115509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb396ca66dc8218b6e69ebef520ffe1fa1e6db82e40fdc0acf9caea87b34eae98. 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/GX5MY2115510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5c6785e49e8eac95a5acb8910b0ae3fa778f377c905246c6fa7a1183f53a8f7. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/GX5MY2115507.
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
...and these streets will forever belong to us
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f492959cae140185be48ff4bd18dbaded5bce279c06c718d62e2dfbc56c60ea. 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/SEYOK2006777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddc835ca69286427d388fbfdbb7a058a464b80eed3328b18b5319fb4ffc3bca3. 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/SEYOK2006778.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16b18c28e8b05b0f118ec8a8ab6aad01dfde33c9521525b337258eff69c5629e. 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/SEYOK2006779.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4729fd02b15b8ca04cd39efbef21953ed3005baeb89a92bade2bb780262a6155. 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/SEYOK2006780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22816db331f29471faf94ddc0fd7d8ee1c508e33810aad72c982844d3bd82644. 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/SEYOK2006781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xceb0383bbd3ba1e730f415f153cedbaa467beb50a9a639ce5313ca1b371722e0. 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/SEYOK2006782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd7a2bbd05d1b69b73f548518dd74f9cc5121504a7d472e298bb69331d4e8490. 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/SEYOK2006783.
las miradas serán ríos, y los ríos heridas en las piernas del vacio.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fa80294b23364dfae14e31f05ab163b62138e1346087f20e219bf938e780c32. 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/SEYOK2006784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6e054099c58c62a34bd553fe9fb834c7625163ac2fcdc3ec1a07ef579d82e74. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/SEYOK2301781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa86c9eee9df1ad2d810351a8e4c9b9c696fc1e4cf59c252c4f46681a8478ea72. 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/SEYOK2301780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe18ff6c3366bc62a729c1dc4a9c06923ad9113d4b489d187a87cb0874e9a57ef. 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/GBSMU5939636.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1745a5383ba43051f532ad0c7300a79f1a97a1850c3fc6439fe1c60fb23490e. 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/GBSMU5939637.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x860dd4c1fe8426e7c56d8ecb3f96e820ba0b68f87bec8e1487e9c5d03b44df12. 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/GBSMU5939639.