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 0xd8d941d67a886fc13df34b66392f18e290915432dfc35d0e7b09e2806dea818b. Chain 2 (Bitcoin): anchored in block 953778 (2026-06-15T11:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b2648411-3d51-4c93-bd02-ee04144e0194.json and https://artists.proofprofile.net/proofs/artist/b2648411-3d51-4c93-bd02-ee04144e0194.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Dizziness (Gilles De Lutèce Extended Deep Dub Remix)
Dance Like I'm Watching You (Radio Edit)
Dizziness (Gilles De Lutèce Extended Deep Dub Mix)
Dance Like I'm Watching You (Extended Dance 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28f405e6e82f2fc8fe79d10fe1d8f8809ad3e4b29f53a606121f9c5ee01b97ad. Chain 2 (Bitcoin): anchored in block 958720 (2026-07-19T10:53:46Z), 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/QZK6J2404156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbffd51b423ea3da84351cacc21771f36c7841c5d01948ccb857896647a2b3233. 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/QZK6J2404198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x515213be29295f1f9d1771e4d1e075fbb17911ba4453fc14f15360e875e85e70. Chain 2 (Bitcoin): anchored in block 958812 (2026-07-20T03:24:09Z), 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/QZTAX2487436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d19bb880c2963c834748a753b72d04e644cc382fe0fabf978ce5feae143120e. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QZWFK2410208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd423fb568e6c7f7dc0ac5f21a2bcff26d2cfb9150af5a3e840d763a4866876be. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T03:39:08Z), 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/QZDA42527145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x039c3063fc2698f354ddf5333bf9432b82e0c3ae60567fb96909d2b154d25fb8. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/QZFZ72536681.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe409385eecb71fb88e87b89c205a58ad6b736f639adac3caf3390598c3d5ee4d. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZDA52571705.