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 0xcb50435eb75114cc52e481f6d0966ee1d10f5b75c06a424b36f9a94fc902afa6. Chain 2 (Bitcoin): anchored in block 954728 (2026-06-21T18:08:38Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f9b38d4d-ef1a-4642-956a-7e300dac4d11.json and https://artists.proofprofile.net/proofs/artist/f9b38d4d-ef1a-4642-956a-7e300dac4d11.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Club Der Misionaere (Andreas Henneberg Remix)
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 0x02914ae516f9df787605bf6851538e57793346e8f19f550b085d212511962f57. 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/DEHM81600427.
Toilet Tales - Daniel Jaeger & Joseph Disco Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ba163d209f9145a08173b43ab637b050af91aba07fa5b37d8163c4916476d0c. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/DEHM81600923.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x813602fc36a117d59698bf37cd65fe653fe380a69f5a8c82a389ae7e770a2a46. 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/DEHM81600928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa85f94d2b2dd7122975d197fc48a88046daaaec08665d22a1218a55c5129427f. 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/PLE072354504.
House Selections 001 - Curated by: Franco Cinelli
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77c0e12e2ec825e390dfbd102227b525c1cb046f3c925d6b95a12c36faf37919. 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/QZTRX2437198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x096792fd6a9ab93b39f64779e2e9f011b01a2d39136258ba83e622f0c8232927. 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/ZAN661100012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc98f79d97914a5074546481191f607e5643f3c3214ce50551aa045ece220c628. 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/ZAN661100018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f26ab51b7e5b33d173e40f68f3b6e18812a513f177b63b10d952357a7addbb6. 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/ZAN661100022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c7f8365fd707c1008d724cda7516c048d4f62a5807ffdce45ea37fd8e96a3fa. 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/ZAN661100023.
Bar 25 Music Presents: Bordel Des Arts, Vol. 3
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24c5bd091d9624a2e8c0d3da3496ab9cab36bcad624e1366d595268d39cc7d31. 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/DEHM81800514.
Where The Wild Roam (incl. remixes by Erobique, Freestyle Man, Ale Castro)
Where The Wild Roam - Erobique Disko Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa942aa72dca19b14b9244a22d2596accb322ff09140904b7d30a365d492f0ca0. 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/DEM092400024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d9cd5ffc4dac5c90d4cfb0d13a97af5581c4691717391c481d2077a3681853d. 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/DEM092400022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5107ba5d3dbf0488250e367b0d14cc4fe1a2f0e6ac19d4e22812380b00604b0. 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/DEM092400026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f5bc7af29cc38f9fab907479ee7a08b779a797f680d2aa01f6c058a426c1a86. 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/UK6AK1400118.