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 0x21f6986e8c4ecd50937a84de1bbbcbd78d6d77505d82b3294d5e5f0a1efaa682. 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/d2c96b08-d2f6-44f2-8755-23efcec1f57f.json and https://artists.proofprofile.net/proofs/artist/d2c96b08-d2f6-44f2-8755-23efcec1f57f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Diplomat (Soundtrack from the Netflix Series)
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 0xb88f1d5c0e1b7e5c6d29355d4ae18776070f8d872819d2ee79e86b2feb3682f5. 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/QZ8BZ2304930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b4c0e0ecf027e04c628689a5d59af2280fadcaeaf25e03ca93c2af90473d3f3. 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/QZ8BZ2304931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab3ae52540954e069780f0c43f58e13ac72ead9020d91b51f347616824a4745e. 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/QZ8BZ2304932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc52751c3d23ce3afd58113039d591027035bc7f8f460bde10148737362959bf1. 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/QZ8BZ2304933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c7666db9fcedcd659f5a1501ba6e1be8257f923a1385db39c4b0caf8930d51d. 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/QZ8BZ2304934.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f6ae771cea8c94e4f1bce8e992ffbf7823213bdd322d32f709de5fc63eb83fe. 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/QZ8BZ2304935.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dceacec8697f3f157637f13b8202b615bbe142b35106580404e2f7d4f9b1a0d. 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/QZ8BZ2304936.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb95bf85d52504870780e18027af10f398a110deb2209567752622011883b9f26. 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/QZ8BZ2304937.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6db12f700cdec2d648752f5daca657859578dbd07d7be288501e5881796d9219. 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/QZ8BZ2304938.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42250d4799ab8e629c868f0102ba6d38c56e2042576c902119421d66ea6f3fb5. 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/QZ8BZ2304939.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb70d6309761e7aec9595260af03359c92b4303689aa9fa57e723468013d70d7d. 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/QZ8BZ2304940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf220cded97ca444ef71c16c01f5d538c97857c224dbb35543052b7232ae2ebc3. 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/QZ8BZ2304941.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf13e7fb2c503cc1334edb6b6331d47a8196448f20703218413a87a0154199674. 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/QZ8BZ2304942.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdf57cc764967dc7d181305c7817639cef6844bf4a33fb095dbdcb8ce897c4b4. 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/QZ8BZ2304943.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba9b29f0e89c7b1a86b00b515748377f1b4aaf802da7030fcf981b40300fbaf2. 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/QZ8BZ2304944.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe94dc373f0abc58dcfa406227e0f1377fc0a6fe384b48e90f5dea08cbf8c1d75. 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/QZ8BZ2304945.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x896e5ce311aff4d905b944ed0806f4e17a5f10bce67f2837de8ddddf08af2cda. 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/QZ8BZ2304946.
Confession (Original Motion Picture Soundtrack)
The Mystery of Her (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a6f7cba44acfca13d49eb94dbbd44ee1add01689917948abbe5fdc58c737f95. 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/USHM82224381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x526b5490da400fa4e36b23b43c58f3f565c8a9c04aaca433d88a1da1306f59f9. 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/USHM82224383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8db78bd67fecf6d3c73e3fd7f7ec1a902cc8461bc70d22c0433e7d8110ff35cf. 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/USHM82224384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc7f427f0f9dc2d612816bcf566ddd5d48bd9b6b8f43e277ce2707b57bc0d159. Chain 2 (Bitcoin): anchored in block 960485 (2026-08-01T00:10:46Z), 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/USHM82224385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x320951a3efc4cdd985078a51fa283c36607952e23265075d69937657cb738294. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/USHM82224386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc392fb91624270be568dc526b2dc3d8c4937e2813e467bc50f4f28870cbe2d16. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/USHM82224387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5a1c7af480dafb8ac1ca74538b50d980465577893b07fa2de2aa034263bdbdd. 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/USHM82224389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7d836944e920f75973af775979b7792c0f218eebb665ace2146eddd2e2285b2. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/USHM82224392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a81b0ff7b11ed79ea988277333bf60ef2bd29d3338bb96241a3d252a705b314. 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/USHM82224394.
Girl Callin' (Original Motion Picture Soundtrack)
Immerse: Exploring Racial Identity with Google "Dezzie" (Original Soundtrack)