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 0x689470877d23da2d45c80e2d969f9b90e932907a2d0ac19fd7e044d7ec6597ac. 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/ae81e306-7c3c-463d-bd8a-4e6b1602cc0e.json and https://artists.proofprofile.net/proofs/artist/ae81e306-7c3c-463d-bd8a-4e6b1602cc0e.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 0xf4ee340439e51d5ef99ba3aae74424508ec5d1d4e5face431f09ff10ffca0756. 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/DEZ651708836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x177a556ba81d714dba26e9bbb66c60deb54d7ea4fbb084220138945ed3df438a. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/DEZ651708843.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5904ea02622d30c1867d2f6652e1fbe52c17227f9d7f7e8416a613fa3cf572c. Chain 2 (Bitcoin): anchored in block 958417 (2026-07-17T12:56:50Z), 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/DEZ651708846.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82e962f3cdafb348552fecef6cd14eca9cd5397963b8a6ed514b20c345acdafa. 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/DEZ651708835.
Deine Stimme ist der Ursprung jeglicher Gewalt
Deine Stimme Ist Der Ursprung Jeglicher Gewalt
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bc65c3f536a78c5e674610b5fe2d00aa43bd20d66ca9eb5338dff057fd2f9d3. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/DEZ651708138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x239e7638bbaf52fabe69f445e1bbb960a19339ac3fd47c5418df1d5b4bf2c92d. Chain 2 (Bitcoin): anchored in block 958355 (2026-07-17T03:11:50Z), 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/DEZ651708141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb69c37d9bd43a2e93b1ad4c1662d9bfc00e37c00bf111635afc7507dddfed720. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/DEZ651708143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x404600d0c83b84560904ee3f6c8563164ed480dcecda0506a7bdb3a7df8dff85. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/DEZ651708145.
Deine Stimme Ist Der Ursprung Jeglicher Gewalt Remixed
Der Augenblick Explodiert - Ancient Methods Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25487be427be29736b4ec796d26085621f41a6e71a48f268825c15357420228e. Chain 2 (Bitcoin): anchored in block 959015 (2026-07-21T13:52:01Z), 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/QM4TW2019741.
Der Augenblick - Konstantin Sibold Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3dde45369e0b327e7b05c6a920ba326f4ba2fc367fc4664b7fd510b22f92906. Chain 2 (Bitcoin): anchored in block 958776 (2026-07-19T20:11:59Z), 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/QM4TW2019744.
Deine Stimme ist der Ursprung jeglicher Gewalt Remixed
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dfaa33a8bad05953d4392aaae8e037fb76e7d7d11b032749adc496bebbf11b4. Chain 2 (Bitcoin): anchored in block 959051 (2026-07-21T19:48:03Z), 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/DEAE62000062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb29655bbf525f919d4c5642ff860dab7f01a499a37ec9bddcac86500267e42f8. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T02:31:22Z), 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/NLRD52332081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ec7ebb111ac7623d5ff823f17ee4796939d900b2a62054f11934fb5f8b3f8a9. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/NLRD52340025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba1976d3b26d644e667778afaee71fd8b06bed4eace87601344dc036f40f248b. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/NLRD52318522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcb92095cbb28c3edf09c8654c4493850969b24c01a5dff75e30557bbd903825. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/TCABS1377284.
In Silence - Die Selektion "In Stille" Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d2b05a93e77324144c742c77d224e7874c22e734dd64b90aa8b5ae39e3daa53. 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/DEMM42101287.
Ellen Allien Presents We Are Not Alone, Pt. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dfaa33a8bad05953d4392aaae8e037fb76e7d7d11b032749adc496bebbf11b4. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/DEAE62000062.