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 0x14e7639134f0fc6f915e77ea0fe7ed3b56aa6906228fbe08b5038565269073b2. 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/8d83a4f7-5bc9-4b07-93f3-21b44f3ec40a.json and https://artists.proofprofile.net/proofs/artist/8d83a4f7-5bc9-4b07-93f3-21b44f3ec40a.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 0xbe7ae8ed4e988873610f1ee65d299f8fd4b43b26e7a5ea6eaeb8938d36c4bf76. Chain 2 (Bitcoin): anchored in block 958644 (2026-07-19T02:21:25Z), 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/BE27E1400020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60824832b56bee8c306548ce26dacc6b7fe77a67667694df860522d0c40a64a0. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/BE27E1400640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5f9d02ca8bf7651c21a8d73eeb59f8d8c2d2aef419cd1669d7276fce9b58fdc. Chain 2 (Bitcoin): anchored in block 958126 (2026-07-15T11:04:58Z), 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/BE27E1500450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c0beb8a88057a28ac8ed032d9528736ea318b1de77571de4072f3355b5cba89. 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/BE27E1600190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60824832b56bee8c306548ce26dacc6b7fe77a67667694df860522d0c40a64a0. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/BE27E1400640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9455a9c07e037bd464d4b8820b55a5a0160aefe5de28f4aa6bf7573949bef79. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/BE27E1600510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x692766a59dedbc4167037370ec0205a5b9e33b9c9d5a459ae2f3b310760fc195. Chain 2 (Bitcoin): anchored in block 958501 (2026-07-18T05:33:04Z), 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/BE27E1800370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6498176c3b2967c5c65ac7578762c78f678d733b03ae52d049e580e5887ceabe. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/BEHS11800003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x537fc33abaf91279da6f23f1872996c9e95388c43a63cabb8f898dccf64ca5d3. Chain 2 (Bitcoin): anchored in block 958126 (2026-07-15T11:04:05Z), 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/BEHS12100003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bc2074488581163f506907bef0c192f8815f14606f143f0bbf34f3367dd2e8c. Chain 2 (Bitcoin): anchored in block 958696 (2026-07-19T07:45:31Z), 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/BEHS12200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x740dc14898ff6320f2760f162a3448ce0c622a6a717d55c0b41975d476be488a. 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/BEHS12200008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15d6c732767e1e0e51f45eb846c5bb4657132395e3223089f3b17298a27fd6d4. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/BEHS12200006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x740dc14898ff6320f2760f162a3448ce0c622a6a717d55c0b41975d476be488a. 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/BEHS12200008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x537fc33abaf91279da6f23f1872996c9e95388c43a63cabb8f898dccf64ca5d3. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/BEHS12100003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8036793910f7880fd61a6f27d2aaa073e600f33274683e8ec12ddec82bd29e72. 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/BEHS12400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b2336fbb81fb5c48b76d98b314c6d39cf3cf959a0cc3e8e1f5d733ff05dcb27. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/BEHS12400003.
Hallelujah (feat. Kelvin Allison & SHOEBA)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf407efc2f4c44638a431882913175e8399b53a180ec70bdf4c7bf91c4c4b8ad3. 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/BEDV62200000.