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 0x41c66ddc9d35889ec6ffead2cf4cfb39c1da24ca6d91ba85f6765473f10a0621. 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/f2ad7932-ec42-458a-b355-8ad45ee8ab17.json and https://artists.proofprofile.net/proofs/artist/f2ad7932-ec42-458a-b355-8ad45ee8ab17.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 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 0x2054cba927ccf36f690b256a8f1e8739a7323b8b67b85aae3c28cf5dbc44afbe. 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/QZHN52022547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91d56bd86908f2e7fbe76afe0ba0c578e03d3703b8746772cdc8e377db3b5423. 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/QZHN32011861.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3811b43682d8b7cde3c7c0a953b997c1057be00bd244a141e483f4a58c8caa4b. 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/QZHN52022548.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82a62fce96534b25b23b7a6cdbff0afdb41ff76c1a0385d306dde283622f753e. 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/QZHN52022549.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf56675603c893f777fa78d9e7cf25f8d834801498ba4928f521763e0a90e4156. 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/QZHN52022550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67dc4d7a115000be1b7157887ed64dbc5851a0e17c93aa217f8c934d0d20fd85. 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/QZK6P2047973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x565ec44095b7706eeed6051197525177003f1d96b92eda6e3d20842f31f337bd. 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/QZK6L2063136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6392aa74e53f87d8a54e7858c5be21f21fbca14df5f702c4297301a3b875cc3. 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/QZK6L2063137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e01dcf6881f26f2aeedfb7d277e8aa36bce40383371f13bdd404cc2014eb77f. Chain 2 (Bitcoin): anchored in block 957020 (2026-07-07T09:18:01Z), 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/QZK6L2063138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe729b6a89a97922ef7b5daf16117d21975ed31e25d507999c673b200a19ad6ec. Chain 2 (Bitcoin): anchored in block 960362 (2026-07-31T06:58:00Z), 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/QZK6L2063139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff17b8895d26689b32980610bb396deca4116cb9e5e941280891fe273dd65979. 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/QZK6L2063140.
Crystal Lake Rave (Friday the 13th) - Lazerpunk Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x626beb11af2ebc8c5850de034fdf30a3cbfa6a9f74fd18a055408bd98d21cae3. 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/DEWG82300215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x811a344e8eb70cb918ad6a988bc74d578a1296d3150445dc29fbe3f1ffba6f75. 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/TCAGI2288629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49d8c46db4a08676a4b2440ccceed357814474ee0ca62cc28b8f1f9d59d3c84d. 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/TCAFW2153775.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc315234f967495a80ec12c2724b7b7d3cb777221d8d5e18aa14f929488724bc0. Chain 2 (Bitcoin): anchored in block 957055 (2026-07-07T15:12:44Z), 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/DEWG82300058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9c1f9ff73e75ac0873e68b54f2e8f7e834fb008b00e57596252d946c7a428fc. 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/CH6542323094.
Desolation Unknown - Destination Lazerpunk Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a401cca7901e4a3a0212d3e81401ad2905e50670f19c37cde3f9e0cad7f927c. 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/QZMEQ2326039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x129d5827d24d5953527fa60eeaa77e795f7e99e07f1fa45df9fdd319b84be424. 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/FRX872424490.
Dreams of Darkness, Visions of Light (Deluxe Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe77f7aac807eb5f06df700a33434f9693b6bb68789c0cc9c9adbeeb59c081551. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/QM5LC1800256.
Red Planet (Lazerpunk Remix) - Instrumental
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47297831ac1daa93b99db51fa256f74d5059c064d9cbdd90543c6c46fac3615f. Chain 2 (Bitcoin): anchored in block 960288 (2026-07-30T17:41:38Z), 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/QM5LC1800257.