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 0xed61c0aa0e0bdd3807bb9a5afb6491e955631052a429d4a597d8b4828885edd4. Chain 2 (Bitcoin): anchored in block 953645 (2026-06-14T14:31:42Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3ed84272-6b89-4ad8-9912-862873d497cb.json and https://artists.proofprofile.net/proofs/artist/3ed84272-6b89-4ad8-9912-862873d497cb.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Tout Le Temps (Johan S 2016 Re-Master Edit)
When Luvs The Feeling (The 2017 Remixes)
Say Something (Jay Vegas Classic Disco Mix)
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 0x4931f2708e6ad96f2dfde9664114bef679bc977f7dcfe34e0da40fe9cd1480ed. 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/GBJAJ2002422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccd22b6325a723ba1942777198eb489678abe042f09742c1a897780267824ffd. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/GBSCL2065037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe11b94f44d2a294a1a615882ef869badfd371ff70b8aeeb4437fdf8b2b0aeef7. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/GBSCL2065038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2947d643bd522d154c6d20a0452b2b7cb1a2f8f6bb82a148fcc2ead28f50787. 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/UK4ZF2200085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4c606f8912915e32e27ab4c9967572ac52f2ace57cb0c0fd1b976b9ca34db57. 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/UKU332300147.
Get Weak (Ango Tamarin Remix) - Extended Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf24ed3be0dd5618f9243e569ccd217a1bd3bf59b15e019f7a921a4cd2670dfd6. 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/UKU332300146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17574961ef14228e05d4e6658764b55e6056c8e729343008a4817c5b77833208. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZZ8B2391841.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x514d6a23826918238dfd94ead4adae5ce0e8197ac516e7bc54820d8b9b511b4e. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/QM6MZ2443425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49886ee7e68eeb9a5ac89551412f813e70251f3d788fc0716692641d006a3e39. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/UKU332400455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd382e8ae35dcec17d66da6987959a533af2073b42a3151aec21d8801a99d42d4. 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/QM6P42534366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79437da998ac5508776a735f70c07e681834b689a6a76381c9c8090710d9ae5c. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/GBSCL2565020.
When Luv's The Feeling - Unreleased 2018 Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac7505ca5c9af7b19b6ce949e430804d90b80a6fea855dcd39e045b8935536c4. 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/GBKQU1872695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cd4bddcc383197207dee9284dc22793a8ebf9cc41ff946175bee750b5db53b5. 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/DKMN62006207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe45c3a9e66f5e6ade55aa7246ff4f56ce51e9ef2b84740e57514fdd3430379bb. 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/DKMN62006201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8ecb8f19312a95c2a6f131edd52b60b931aded8aa5bb07d0a8536aaa11ecd0c. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/GBJAJ2001060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd851e204909bdbcd51cbcd22a269acd5a760baff4183a57104b5df827e01382b. 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/UKJWJ1900348.