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 0x6da91ed8a0ba78fcdf0dbb57fcdfc42e7e10907f85f6709a3aa62fe88b830fab. 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/a0f55f2b-f6a2-4ea9-8237-9aa538be5f7d.json and https://artists.proofprofile.net/proofs/artist/a0f55f2b-f6a2-4ea9-8237-9aa538be5f7d.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 0x48a740524be6f343d2ef5039dc04a76d021a9c1e5d36a7d946e625d362032aba. 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/UKXN22247100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x525b2ba13856160ec9ba237b9a2d421bc2e6bbf8b78ae8d44912a06485c58cf5. 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/UKXN22474549.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe433ec70cdf62f2ddd5fac331532a468c2055713a7077f878fccc417149d4f9. 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/FR96X1721882.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d6a5a6bf8836f2617b2185c7bdd85fa51bb289f17b8de24aba7ef8ca4531a20. 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/GBLFP1841726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x319bd46202fc53c615174b2b9dacce8d99e14c45e9a7c6c0c2016405d8bff9db. 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/GX53U2024648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e2383347a33e9a77d57f091ffeb1888061ecd6d18c441ee673852af7b4226cb. 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/GBLFP2032292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d69e4d2db4fb291be3dd32f0f04a63a32d72e67b0e500a8af7da4648d476740. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/GBLFP1979908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb28d3d26a11c5720b187237d7dcb01b245363e74aae440fb9671b371922c733. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/GBLFP1979913.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26a4d4d691ea959b065db8a31e003a47d67ea1139a9748c1135f1415f4beb348. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/GBLFP1979921.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2a94b7863754ced0bbebf1f4a99e005e316b5a115dad44ef0acf1312822addf. 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/GBLFP1979927.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2d659514f3085fcffed70a09192c4fb6bb00bac115eb6c9533b98f18839d028. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/GBLFP1979930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7da3bcf4d0fac1932c18fafa78835cc2f7a959e3eec8351629b65afb921a261. 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/GBLFP1979932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x948a4891fbf615140c8ebd03a736011a3206425f3b70eadc2c8c0bb962d546db. 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/GBLFP1979934.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4790755c9a4628faa2bf59a5cadb869f00577629561321bab44bfb5b73944c15. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/GBLFP1902062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaab0d12dd41997d339bae246b56cc0691edb002160d8d15d4776a812c199de94. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), 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/GBMA21892094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64ef2e7f6b7890d6acb85ca68463e490c133e4417fbdb84c6f81dfa7b7c191a2. 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/UKXN22396776.
E. Mak First Take #GW1TF - Studio Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf22bce1ed1d2cd7711b5c20e59b3b55ab9f75da773d97c9839e5ef9a51707d5e. 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/UKXN22396777.
Please Remember (Gratitude Is The Attitude Riddim)
Shellington High Road (Gratitude Is The Attitude Riddim)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bf9ac90e3259096b2ea40540e7ae7d11c17d27df0cfc51929fa1f21128b80f1. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/GBMA22448936.