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 0xb86c1cf3fe290dccf5e3860159af47951bdb30e379b98752fba1e4a46abad347. 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/1ab83dc0-0b8b-4545-a224-e4b7f58eb33a.json and https://artists.proofprofile.net/proofs/artist/1ab83dc0-0b8b-4545-a224-e4b7f58eb33a.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 0xb5b7b8ea4950d94bb761254d06273aa0c58e83650c6ca0120f53babab62ce102. 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/BEN582100059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59849cf2f56d00e1629da468aceb8afde4190e44cbbb6549be96a04dab33a141. 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/DEBT92200206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4daeeac8697838632a1662e593e5b949a26be10acc7490661414fb34de23d90d. 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/DEBT92200292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4dcc20ee2f052d773af05fcb25139cade0bc3dee7e47de75c87b4f92c96d1ec. 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/DEBT92000043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e82251567796e00a55beefa19bb66e3a0e0909ce68e2cca0b8780a7d1b4fd19. 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/DEBT92200167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2a89a976535f9e0392417b67eb14960d37fca6f2de499c37e98da9ac47641ea. 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/DEBT92200168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1a2f3b190b6ea2f151cfe50743e42caa973e7b6428369b96ea226513a310c6f. 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/DEBT92200169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8aed03bfa944c33c0b6008e45a916e6bb557eedf204dd642fa0626ded506918. 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/DEBT92000051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bc501a1ff8908f1957c3897bc7168099b78c9c659b15df92cdc5ca8a33848fc. 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/DEBT92200170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96742abcd06a577ce27b6a6688127cc2560d03bdec29ae58d29bd8050acd2228. 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/DEBT92000050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f0265426eb634e10da339aa32885fd4d8bc5935720b05154ff591bfe4e0f0b6. 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/DEBT92000044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3798db64d232ee96915f672e519c1c373f30ec3ba6d341b863a2e6f6964cc60b. 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/DEBT92200172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x830d39b622fbd5abd629cabdf8d19e83f21b39347736acff63ec37907322dc0e. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/DEBT92200171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d1315e8bee0065fe372a2ad708bf8b6f82f24c175aca1e75427890a25513fdf. 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/BEN582300440.
The Fine Line Between Us (Local Suicide Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d1315e8bee0065fe372a2ad708bf8b6f82f24c175aca1e75427890a25513fdf. 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/BEN582300440.