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 0xb793d7667ff0686932518d95212d8ce44b3212ddbcd9c2fb77f806742bb395b2. 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/51004653-b7af-486d-8b15-09e4a96c30b8.json and https://artists.proofprofile.net/proofs/artist/51004653-b7af-486d-8b15-09e4a96c30b8.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 0x714601d6cfd4a364bdfb53530f46b996b0152d49d27e38ee1ffde9c9714eb087. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DES311100459.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41d930936a2e0981314da4c7567364b25300b81ba78341dea17802118b2cc1fb. 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/DES311100456.
Als gäb's kein Morgen mehr - Radio Club Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a87d51559beabe1d60803a025f4d1916d056349851466b22d77eaebc9d202d4. 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/DES311100457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed7b42c273d77bc9a866a59992913bfee624c755f650eafd87b394ae5ca4a45e. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DES311100458.
Als gäb's kein Morgen mehr - Christian Liebeskind Radio Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4aad440c3a9a2780b169a91b5ce83ba20192f6f6ae723ff9ddbc18c72814ea98. 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/DEH741646488.
Als gäb's kein Morgen mehr - Christian Liebeskind Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ad6c2ca41e984cb884055e5c9521f3fe958697e1cc454e2e802d31066b8d45b. 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/DEH741646487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ce5c24c2e41dd4ae23f41e1dc78fc64829134f1fc42bea9b02a8b8ba1c72276. 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/DEN061900661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc68d86e2076f95e8a89ee205549f40192f07db5906641f41395a8dbdd5c0b0a1. 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/DEN061900669.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1be0d367b5efcb1bfd3e2cd3b1d813194267410ac21e84e19b7db3a4a212b7a1. 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/DEN061900679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bde6078e68a78f54caec5e8b7dca63cdbf5d63e851680ecd6789ce0f169e594. 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/DEL711410028.
Es ist soweit - Christian Liebeskind Radio Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0d810410fe3ef23c1f780da8d936a65df99e0f0101914460a39b2207bdbf66d. 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/DEL711410042.
Es ist soweit - Martin Eigenberg & Soeren Lindberg Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e8031fee176e0915de19d9b850af5bad927669493d17304982ac06320f41005. 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/DEL711410044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x335b47691d310b5b3d825e3e8933d330324250b7b213287a3e484f6ef306667e. 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/FR96X1808243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78db1225b3e88e20dd80db7de0394dafb6f954bc75ab4d06cf708cfaa6500cd4. 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/DEZC62255084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x858546e58365af868f5c2976f0ef0c35f2f7c3b9c4ad308370a2daba80638a6f. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DEZC62255082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3eecbbd0d244957ee5e1f6b0c6cfea35ea73d3645fac5e2f550f65ffd920b41. 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/FR59R2103558.
Du trägst keine Liebe in dir - Radio Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5368af8f987c35ec4c8f158b3b334607b613247135889d73191f82482726948f. 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/DEN061600318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd7a385110924c531fa742feb2f498f29efe91f36dea264162186b61f1864366. Chain 2 (Bitcoin): anchored in block 959096 (2026-07-22T06:36:54Z), 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/DETO31600297.
Waldbrand - Chris Avedon & Kevin Neon Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17af148bfab3cd5a4c3882a83ed7132b320fcf426750a2fa1cd87ef8d94e7487. 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/DETO31600298.
Turn On The Radio, Vol. 7 - Club Music Radio Cuts And Edits