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 0x56eea6a44f4f1f320c63fe8a94901072aba1c5cfb9a73535e77bd228f5f55043. 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/8f7f31d7-491a-47f2-a3db-83c5776379bf.json and https://artists.proofprofile.net/proofs/artist/8f7f31d7-491a-47f2-a3db-83c5776379bf.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 0xae94e2350d596decde99519caf796934071a30faf03d8aba337d058c0132965d. 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/USAT21905270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce3d5f1c375b42f7b65fe2bc27461a09779b01f2b802a251d7e3f9f517bd6d0a. 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/USAT21904237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64214a34c21cbd976679abf8cdd4e1be5209e21db8c8561988c59d502d2bb70e. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USUS11700080.
15 Years of Enhanced Music, Mixed by Tritonal
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcacf364ae98676d7d9c2c34dcff9be5f965b6a5d28c33b0abfd21af71d47290. Chain 2 (Bitcoin): anchored in block 960163 (2026-07-29T23:20:38Z), 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/GBKQU2364374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdf1158fb5bb76bd2ece1f36a5a13ef2ed9f44ade79a4df447d30747dbd108be. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/QMLD61408186.
Run For Your Life (feat. Natalola) - Attom Chill Remix
Run For Your Life (feat. Natalola) [Attom Chill Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9caa89076affb08d0e29be74db6be629aa5d0255117f47250179245d27435025. 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/USUS11700094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x804f1c496d88752b0bb20a09545933f3601ae599d3f5ab505b9975828729d1db. 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/QZHN92226510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15cb8c7f2e108528460df47dcdd391fbc88a72b605986755318d3aa6c53b2825. 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/GBKQU2410497.
We Don't Talk Anymore (feat. Selena Gomez) - Attom Remix
We Don't Talk Anymore (feat. Selena Gomez) [Remixes]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09c05f0294782379d3308e0cd9a770d5c636f21b00704b453eac8770f578aab5. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USAT21602066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d543a3dda567bcd483a0980b70c9e4dfc0602a97791c91f892aa39af8af96dc. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/GBKQU2519138.