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 0xaba67802ef17f9634781679729fe17d77df0fb91021cce1bf0f1c442e27c66f8. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/22e14279-e754-466e-a2c2-7fbd97086684.json and https://artists.proofprofile.net/proofs/artist/22e14279-e754-466e-a2c2-7fbd97086684.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 0x4013cfcb86071ddb6323b87291f123ff2f1f86ce498aa79aa368a0dbe049c16d. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/SGB502251429.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbd5996b605c231df1dbf4b2737ead1d9b56bd0aa5fe718d305a4366f9b7923d. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZVEM2305572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80dd06a76fccbde2ec47ee11a8a9a3aa2d08b324e1cf6b7bcf5d52db2124fdee. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZVEM2325851.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b6f76b6dcbfabe34adb97279cac6ae453ddb52646f08d7905b4514cb8faa92d. 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/QMFME2366311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb2acde1a374ed1f109f2e74188469a1b0e557c8c83aa7abd3cdfb7216c86632. 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/QMBZ92366327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x499ac69675e9b68e08e47633c4187385fd52ffccec4c89e80709fdbd203dcdb8. 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/QMBZ92366326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd91f6f76c1e5c411f8f28ec4116a6e2ed3f0f6af8ad2b37cc83311dbd3e26a1. 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/QMBZ92366328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b6f76b6dcbfabe34adb97279cac6ae453ddb52646f08d7905b4514cb8faa92d. 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/QMFME2366311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb2acde1a374ed1f109f2e74188469a1b0e557c8c83aa7abd3cdfb7216c86632. Chain 2 (Bitcoin): anchored in block 957041 (2026-07-07T13:25:45Z), 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/QMBZ92366327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x499ac69675e9b68e08e47633c4187385fd52ffccec4c89e80709fdbd203dcdb8. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/QMBZ92366326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd91f6f76c1e5c411f8f28ec4116a6e2ed3f0f6af8ad2b37cc83311dbd3e26a1. 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/QMBZ92366328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb2acde1a374ed1f109f2e74188469a1b0e557c8c83aa7abd3cdfb7216c86632. 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/QMBZ92366327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x499ac69675e9b68e08e47633c4187385fd52ffccec4c89e80709fdbd203dcdb8. 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/QMBZ92366326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd91f6f76c1e5c411f8f28ec4116a6e2ed3f0f6af8ad2b37cc83311dbd3e26a1. 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/QMBZ92366328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0004f4ae8d978a8f85dd72dfb175033c1b98ad67336f30569ce64755ad02a746. Chain 2 (Bitcoin): anchored in block 957048 (2026-07-07T14:18:56Z), 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/QM4TW2467728.
Lighthouse (Ray Garrison Booty Bass Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5693b153293733ea7699136f4bdee57820a0112e7ea76c4ce25390c19ee54b4c. 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/QM4TW2467732.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x863073ab3765a1b1be7edaf16bca8b9ed904aee7d4ef60093bdb6ad9c79c95de. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QM4TW2467736.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b6f76b6dcbfabe34adb97279cac6ae453ddb52646f08d7905b4514cb8faa92d. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/QMFME2366311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb2acde1a374ed1f109f2e74188469a1b0e557c8c83aa7abd3cdfb7216c86632. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/QMBZ92366327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x499ac69675e9b68e08e47633c4187385fd52ffccec4c89e80709fdbd203dcdb8. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/QMBZ92366326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd91f6f76c1e5c411f8f28ec4116a6e2ed3f0f6af8ad2b37cc83311dbd3e26a1. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/QMBZ92366328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4b315a6ae77c7af1fa732aae996030fec5280377b8e8f949e7a3d92549fd0a7. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/QM4TW2467746.
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