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 0x05d320df9615334a952f38e1826eb47d6542288d234dcfc1e4ae0b46dbda0d2c. 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/8748ff63-44e8-4dae-bf02-db0a7c2cbfeb.json and https://artists.proofprofile.net/proofs/artist/8748ff63-44e8-4dae-bf02-db0a7c2cbfeb.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 0x49bcaf82c807ca1194a1a76ced685f3d742474ea49ea265260596c64ed6c43e3. Chain 2 (Bitcoin): anchored in block 957583 (2026-07-11T15:53:17Z), 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/GBAYK9500126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc1e93b6b6832d1ed5476a19d8422edf477661f60a6392653122c15f69e667a0. Chain 2 (Bitcoin): anchored in block 957576 (2026-07-11T14:19:48Z), 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/GBAYK9500130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e1e4003c257c6ffaf9625becbd4f91fe184c00c6af13263628261d13b57c72b. 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/GBAYK9700095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec18fa41e878d7bec775f99ab4b9c6d13f078eed912b945ca0dd24d438469e10. Chain 2 (Bitcoin): anchored in block 958788 (2026-07-19T22:07:06Z), 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/GBAYK9700101.
The Whole of the Moon: The Music of Mike Scott & The Waterboys
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x442047b4108a26c6626883f78eb6a22476ebda791988e2a62b45dc00f3849798. 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/GBAYK8500002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x570dbe94e8db30b56f22a3a318ebfde7ecbb05705cc53599ec8eee58fcad575f. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/GBAYK8400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c2689c91553016c0414318bf1b35e261c495dac1f8d8ecf1229222c82e05e65. 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/GBAYK8500078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfa315b88e0bd976e4804b8ff174cd49bed23d4b3c54f7aef26d7fca96f8ff40. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/GBAYK9500001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a9f6ec347fd231c02d4deca1f21e56bbd366c330cd40b6e64b821e37263bf04. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/GBAYK8800004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5ff8de0bdb09edf187f8da53ff686d695b613a1dbe8e1140e6909c47747a16b. 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/GBAYK8400004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6c14e6cafde704bbe68786179cd9471b055ab8584b182d6d118bc8de1bb6ca8. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T08:14:15Z), 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/USGF19347604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11530ae55e8b0b0130947aa77d0de1704b5e55322ff37d875ff7d0e4430448fa. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/GBAYK9500131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fb5577797252de51c91bad427936d0ead7080552220e97219b746e3225e81e5. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/GBAYK9700002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe004e7f0a3289996b83c375b80803e042432c024b77e710ceb28c35c351ee4f9. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T11:41:42Z), 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/UKKP29700003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1260a8b212adc17b1cff32d08834f2fe9776e3e25eec5b1263a70d8ce231f88c. Chain 2 (Bitcoin): anchored in block 958864 (2026-07-20T10:24:04Z), 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/GBAYK9700115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08f765e2a3d6aa99a15b3842df07ad9da69f6aad37241b7386379567963478ea. Chain 2 (Bitcoin): anchored in block 958680 (2026-07-19T06:04:14Z), 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/UKKP29600035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1365fa980e93ba9f532a25115ce4773f66a0c52a0b7054f104d7bb078cfafaf. 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/FRZ110702317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f93b1181a5b622cd194ade8c1609c15851b1e584056764b450a7cdbfa343b68. 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/FRZ110702693.