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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x509a1e7dd016c2ea9c258267558c64fc9e02f18c6f821e6617086bf123c282ca. 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/b263890c-3a8c-40c0-a35f-feb7f9acaf3a.json and https://artists.proofprofile.net/proofs/artist/b263890c-3a8c-40c0-a35f-feb7f9acaf3a.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea52339dfeffb64de6533e6940e5c9a97b82ec896b07cd04cc90bd07b310ec43. 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/QM4TW2201050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d1d7f21a7c1458341e2c7b9d3e7ef144c1f15d2405e7b21bea71bab0f6096ae. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/DEQ121533440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7f008c5d43409114e006d89426ec6cd641f442412f1cf464fa31c7e696326c3. 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/DEQ121533443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0d5483d9484071db17ea924051ea20de10c83ff1878eece66e1acb32c4e8f53. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/DEQ121533445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13902f2d0099dce9072092e7bb511dfc910c1623ef64710d1ebaf8c311a3269e. Chain 2 (Bitcoin): anchored in block 957041 (2026-07-07T13:25:45Z), 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/DEQ121533454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb782b35556a9e00aece49e238d75c0b6fbf26a72840199399e6109f9515964c9. 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/DEPI82217607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba73c36748d2c2935cae30ab33ec7b2fa11dee7603f20634b7a99414af765317. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZS662273640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x200f58f7c24282a32eede75e7d6bf81e776945cae69b31a8ccd4e4d2d0cdc186. 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/DEUM72006304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae9d664b1a62b7839042e3b9f97ade8858ff440ab8f24db13b88155898933d67. 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/DEE862301145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5145e1d2799b3676be3075d58ca9ab0dad5a22e51c3c6958972796391f09a8ca. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/QMEU32102737.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e91f5966646b27fe3d0eb53670f3c5b7a34ce061d0b72cc08e89f7128c09362. 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/DEMA61900090.
Dancing in Tulum - DJ Antoine & Mad Mark Future Remix
Dancing in Tulum (DJ Antoine & Mad Mark Future Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64da76ee2311414634dd35f6801b1c7f2234b64d707ecdabecf08395e95a06e7. 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/CH4882300203.
Dancing in Tulum - DJ Antoine & Mad Mark 2k23 Mix
Dancing in Tulum (DJ Antoine & Mad Mark 2k23 Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8d8b24de538fe36665ade87260eb0a84e41a59c197526a5c15d218913b74f68. 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/CH4882300201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bce58b03963a57955c5acbb324113c2937fba5976b2d9ac91caf1f8236c55ac. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T14:55:42Z), 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/DEQ121533452.
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 0xf1567ff21482cf580d6ec270a36d2b15c450b9e128279c9544ee2c0feb35b2de. 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/DEN061500227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ef247e625c839e018faa3200606221258cc777c3845c2d2b3b5d0dfa9e30e85. 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/DEUM72006370.