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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd34c6c4cfee81d3b8e09e016f7ac9a3cbaea260669aeb3b90c1c81d904dbebd8. 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/a2f77582-9b06-4065-a783-281b1a678f04.json and https://artists.proofprofile.net/proofs/artist/a2f77582-9b06-4065-a783-281b1a678f04.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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b98809c3617aa28c6c61d1f4b0ea8d0554aee73266ccc7ba409ef2745d5702e. 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/GBUM72306154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e087124b8e49465fbe38deb4b2d7bad7c0eb53ab45adc9ef2deb33fa6bf4f6b. 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/GBUM71806510.
See This Through - George Fitzgerald Remix
See This Through (George FitzGerald Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd69cbba582117f073b0b66846fe6e888c8c007baf9e73ddfc94e1a0da5fd583a. 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/USZ4V2300156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88966cc41e666167424185799dc880b7436c674e42e7dfb4f983e29d70fb7bb0. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USZ4V2300070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ac7354dfffeaf4b914b7f03291e111a51ee542174e3f1e376991954597c7fbb. 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/QM4TX2414749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09d3c30856a083e453b7aef35c983a721d8f869be3568e87e5094ee956db6be6. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/QZVEM2307762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80b5fe9d8b8329fc661de28036df4179a0ac1f6f7c9f1b86575136a75afb9c5f. 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/ITB281300075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80b5fe9d8b8329fc661de28036df4179a0ac1f6f7c9f1b86575136a75afb9c5f. 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/ITB281300075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a5511e90048865034e5ee6cd5a4e4dbb9c37f385eee6236d283e85ad2bb68c7. 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/GBCFB2301023.
surrender2me (Aiden Francis’ Summer of ‘93 Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b289fc9a413aba4a53c9b3e58ea67737bcff924d02136908fbb863269dda5e3. Chain 2 (Bitcoin): anchored in block 957064 (2026-07-07T16:43:08Z), 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/GBCFB2500098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b289fc9a413aba4a53c9b3e58ea67737bcff924d02136908fbb863269dda5e3. 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/GBCFB2500098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a5511e90048865034e5ee6cd5a4e4dbb9c37f385eee6236d283e85ad2bb68c7. 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/GBCFB2301023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88966cc41e666167424185799dc880b7436c674e42e7dfb4f983e29d70fb7bb0. 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/USZ4V2300070.