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 0xe2637b22da381fbbf3d41a47a1342c23fbe3a3638496f6f2f4fc84a59dbf993d. 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/3668c2b8-08e8-4dc8-b072-85c692ed298f.json and https://artists.proofprofile.net/proofs/artist/3668c2b8-08e8-4dc8-b072-85c692ed298f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
I Never Loved A Man (The Way I Love You) [The Four Performance]
I Never Loved A Man (The Way I Love You) - The Four Performance
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 0xeee059c7b943ff466d80ddc29259307bb141e49e4267b0d4e8a421c2c9d9df54. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/USUM71801225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd70fbe364b4367db6918ecc8136688b15e2b41b0d6bf6f87e8b9b947c3ad3702. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/USUM72016829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc81836fa0989dfe81ea013742ad75c654f1eb930f5ca5dd449cf2ec281ec4478. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/USUM72101206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69bea4e1400f2b64a4e3fc05abe30b32c6f05b5e755bb3ce907457a3c163c9e0. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/USUM72215347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69bea4e1400f2b64a4e3fc05abe30b32c6f05b5e755bb3ce907457a3c163c9e0. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/USUM72215347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68eb8a359ab62fb114e2c8bd66377f9eb0ce4b002ce748a8fbe0b15935989cd7. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/USUM72215346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dd992a52fe7290c7a7e80f84be623085c7230733e49db141672cda1813af754. Chain 2 (Bitcoin): anchored in block 958422 (2026-07-17T13:35:31Z), 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/USUM72215344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x944ac7907928f189ab10bf826699dffde6d8dda9fb2e98c7def369e3ecedcf53. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T19:00:54Z), 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/USUM72203194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a8e830710f870dec7e99963a89ed411f3740e3d26bda1df432bba35792d46d1. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/USUM72219413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d352b849bf79f8bf98d78dd0c5fe0bfdd7655040b7d306b83476a147a5ec9bb. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QZVR22300353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf49e998b2d20b99ad8c3ad158d72174a348a025afa7d1cc857707ee54ef7ceda. 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/USUM72112522.