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 0x35e8b648b8cba60d1747eea7e434d355f28fb847443be6abc75209fbfe2b5a9b. 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/672300cb-a80b-4093-b6ab-d359927cbe49.json and https://artists.proofprofile.net/proofs/artist/672300cb-a80b-4093-b6ab-d359927cbe49.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 0xcc1ad1ede3fb4dd117bc0d53ef1d164aa53943e84a5aa50b996ce97dd3db9127. 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/NLS761100063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e647044df95c701dc9b2000625618c0ecaf2be908ba45542fff372fa606d7d8. 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/NLS762300912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd31da51b26f44bfe6bb7bd7f0af1b5c89ddbc7128965615134d9dac313d3513c. 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/NLS761700369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbda3bdd1180519a8cfe2c2122b358b85741a73ccb90e2692b24938a0524c10ed. 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/NLS761600194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86b792b063223a8e4d56d4e6bf180775f2ea649658580b2d5ccaf13bbe6685e7. 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/NLS761700010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50d21a8b69b11acfce2a56ae9bcdf070c6a02a1c2069224b9102cfa7cd83f23e. 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/NLS761500033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb40e64d0970ac37bd9bfa8509a6ad4e4a91fa4c20cbbf35865e25870270136b9. 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/NLS761600419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfac3a498f03b1f0e5752c08ca18e75a5ad58051c6d81e25410747fd420290dc9. 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/NLS762300469.
Music Made Addict (The Prophet Remix) - Mix Cut
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x992600cb1d27c3bf85a0fdd9c33efba4ab5a221add8ab158835bcb9e49f89e5c. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/NLE801720017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x052174dccb053fdbfdd73b4fa3e62d4c1348e447753d7a15da6410b1636eef27. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/NLS762400077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bebcf27083d6fc215f4f8f86940e3cfb7a36fee68b193eef1b042a61c9a917f. 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/NLE801720032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3f45b0331b0d94354b97abf2f0886aecadfdebc3a19072b0d83843b99e75151. 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/NLCY30801823.