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 0xc916e843928bfad3e38e351b39c8c2f0a8f809f6023387b0adae62f2199fbe87. 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/c20e645f-fdd8-4a77-87b4-c53892a0ffb5.json and https://artists.proofprofile.net/proofs/artist/c20e645f-fdd8-4a77-87b4-c53892a0ffb5.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 0x7c73d5f5661508eff5dfdead19e20549187576d26eccabc4535ca062d98297ce. 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/GBBTV1802626.
Late Night Tales Presents Version Excursion Selected by Don Letts
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf0745854c2ad85dd115cb981475ee0c1c2246ed48951982894529e269c51ea6. 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/GB5EM2101946.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb25a27e272f920f3df16ca0f626637b7ab4688b8bba7342f310f371ad5bb588e. 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/GB2LD1800819.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x103526580fa5cff94dcf22b9f429b4ae25e08a8b5df89c2fb61cd4f748640014. 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/UKYJJ2110035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x349d179d16976b7af75b979d31b9b12361a3ff1ab7dfa26d1bbe40968ecc9cde. 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/UKEWB1600216.
Dubcatcher, Vol. 2 (Wicked My Yout) [Remixes]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9981d9f0da67aac536a64c23e818c932754fdfdbc720d3f52a45d0ce6b0e980a. 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/FR2EI1600920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f0996510516dc77ec0c8ffa288c98c2b2e5b685000ed01b3a84e9b3397e67c7. 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/GB2YG2000007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e387d990aaec76c6dd25807234e82b5bc0e2c2f38a35ed5b78674a6ec624137. 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/GB2YG2100020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14b22209913a0973af5e542b3de10b066e3754ffd45b009e5253b4c1fdf8d59c. 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/GBBTV1902648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x296b97dd98dbef2e87709b62daa2359bc3d344ef5dad238ef4a416bbedd40442. 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/UKEWB1600141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x296b97dd98dbef2e87709b62daa2359bc3d344ef5dad238ef4a416bbedd40442. 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/UKEWB1600141.
The Light in Us - Boogie Back Soul Weekender Remix
The Light in Us (Boogie Back Soul Weekender Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5474d2a72e98cb44d319222931f02eab6e4c2695a44377976a95339736d982db. Chain 2 (Bitcoin): anchored in block 960276 (2026-07-30T16:01:17Z), 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/GB2YG2100003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5474d2a72e98cb44d319222931f02eab6e4c2695a44377976a95339736d982db. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/GB2YG2100003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x635dd0886fc219481f2939594794ca04a38d0f87ea26455e5020fe5ee20c3b30. 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/FR2EI1503090.