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 0x4120729ea60b3be47ec56ff027aa041bfc7ab81885b18b4421b41b1037d943e8. 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/9b5f16d0-2e42-4de0-b936-ec967ba7c326.json and https://artists.proofprofile.net/proofs/artist/9b5f16d0-2e42-4de0-b936-ec967ba7c326.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Cry Baby b/w We Don't Know (How Lucky We Are)
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 0xa5b445865b6078a2874282e6e69bd5b1b89a411d110c5aa448b9c495c6aee9c6. 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/GBNYT1900044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb21eddbb3249d5b0c262194fd0c186f56d76c5679bfc77f7b7518a55a7ebfd7d. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/GBNYT1900045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17e6d25730bcd692784766cb4b324386ca478444fd539a6e35a926ad1572e903. 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/GBNYT1900048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54d5cdd9e0ebcc5b634e1ebb40424e6e8d81bb6e5f1a539c3093dc70db34a2b5. 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/GBNYT1900052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f66a95645c6b792c2c43f14038b6f3655a1da75efe825b0afdab18009c98616. 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/GBNYT1900053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11a5cc508063dd63c75331ea320df61ca79fc56f7fd3aa6e22efbddf3881afa1. Chain 2 (Bitcoin): anchored in block 960276 (2026-07-30T16:01:17Z), 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/USAT21404701.
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 0x0fc327d43ed27e3455e1c7cdc60200b6454f50f8b491a3512701db6d5ca97160. Chain 2 (Bitcoin): anchored in block 960296 (2026-07-30T19:11:09Z), 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/GBNYT1900043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e0de35ff71be5fb1a1771a93f78ea39f66fc39990d256e9329d29304002d6ea. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/GBNYT1900046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ea42c6771bd6e17543024b8cbd70ebf4bad890d8c94eeaeecfc2cf15c7f19ae. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/GBNYT1900047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36633fe64687275b25fe9f2892aba2e122b7ac3a98b384c04d00de553fda8859. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/GBNYT1900049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ba17be00be51c2bf6b945abac58030cd37e68225e8f96087116de6748f95e48. 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/GBNYT1900050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb16e07a779f74bd389c0ce14798c07ce1da0d038083dd31f0bfb36855ce4484. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/GBNYT1900051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2be56d98fc920eaad662a2be14e53d6db2b59194d281f75bd3a3ce9720d24618. 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/GBNYT1900004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c002b30b033e13e49a301544686cb4acd3833a30e399ddd20c93c75344488f2. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/GBNYT1900054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78abb8bd48885d78dd987b794bf7b2b390562c35ca6fb229fec5cad3ad625059. Chain 2 (Bitcoin): anchored in block 960407 (2026-07-31T13:26:30Z), 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/GBNYT1900056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48fb196245b238a0a73a901a2fb498a4b26aafb6d2ee44c3b626352d8dd5c71a. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/GBNYT1900059.