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 0xb8a84d2f450576c2277ed457d2ee37f8f4a08b091900a0ebc2234ccf7f1a22b4. 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/c5ff36a1-d0b6-4f3a-a4e5-3324f883ccff.json and https://artists.proofprofile.net/proofs/artist/c5ff36a1-d0b6-4f3a-a4e5-3324f883ccff.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 0x9c40c90ad53a8f2b4f27e56c41a972096cf17e3bd52be9493738772c913d928f. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/JMA020600295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7f30d27e412178fcfe859ef26f16c19925e153cfd8826bc514139d3078cff1b. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/JMA020600340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0757d44fe5b24b1a01a5c7c99de4f320e36aa71fa5e949fa165e1993b79ead04. Chain 2 (Bitcoin): anchored in block 958346 (2026-07-17T04:11:11Z), 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/USHB19205702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5882d4861a70be8ba93b430c1ed006ae222a77b5d9c67e1ca1a4a08f5523981. Chain 2 (Bitcoin): anchored in block 958880 (2026-07-20T15:22:45Z), 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/USHB19205703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96682c63aacae3b664f517e6a002d12aea59c0e0af90ce8e055bacc973f16ff6. Chain 2 (Bitcoin): anchored in block 958126 (2026-07-15T11:08:03Z), 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/USHB19205706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x201d3c134454e28309de1c8dd08d13eeb23a7548831bbe6cbf30fb417568708c. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/USHB19205707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52c2d0ee1d429057d083d807c6d17650790be86fba82c8a8792703d51277fe14. Chain 2 (Bitcoin): anchored in block 957642 (2026-07-12T02:46:48Z), 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/USHB19205710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3177337d498c5907affc6e69ddc09320221acc049b682060bef1e6481a805585. 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/GBHWT0500304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe8cb3f36eb0bc7c9404589a6667a1fb5ad95f7cf178765a7aaa422614127965. 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/JMA020600253.
Soul Jazz Records Presents Studio One Story
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7f30d27e412178fcfe859ef26f16c19925e153cfd8826bc514139d3078cff1b. 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/JMA020600340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c40c90ad53a8f2b4f27e56c41a972096cf17e3bd52be9493738772c913d928f. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/JMA020600295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cb66d4fc2eb608770174a6297b4ced3d2106dc8af57999c7ad75391d1f4ce19. 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/GBHWT0500009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccbcfaaabe0a0a596242390724cd68a8ed73e7d82e14b0e16cbf515a6ce911f4. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/GBHWT0500328.
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
Soul Jazz Records Presents Studio One Rocksteady 2: The Soul of Young Jamaica: Rocksteady, Soul and Early Reggae at Studio One
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a93da83ac8a3a815ec89efefb5ffb9f0399945479741a96ead090b0c2b72802. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/JMA020602041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2459e5222d3afc7a28d105df85e504b888bc36fa300fb3b22e86baa34f29ff22. 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/JMA020602288.
Power to the People aka (For God's Sake) Give More Power to the People
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcf3d66f29c30ab0f4b2b86a12e7c902adb0e146611fd0d634abf7dbfce194db. Chain 2 (Bitcoin): anchored in block 960381 (2026-07-31T09:50:11Z), 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/JMA020602428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d26934c6d33d43013a43bb82209eb97aa3c065a9469b24523724af0a005bb11. 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/GBBZV8504450.
Porgy And Bess: Oh, Nobody Knows When de Lord Is Gonna Call
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08808f3f06a483b22889fdec84276080afe9874f0fd14e5764b5c320c1b4a5ec. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/USBC17600296.