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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22af00fdcf3228f012e694a41ae591964d35ca2fb383d2a670220734ee877419. 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/bd9aaf60-5b8c-4cb4-8154-66194a3d70ba.json and https://artists.proofprofile.net/proofs/artist/bd9aaf60-5b8c-4cb4-8154-66194a3d70ba.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65c3c9679203fd2c3c3688ca6c8782c75858b7fdcefa9c4b8775cae04d56b881. Chain 2 (Bitcoin): anchored in block 958686 (2026-07-19T06:43:29Z), 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/ATR980010940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72450dfe398fffa6bc4c2a8e61456303866b18441ae95a472db1cbf004427d62. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/ATR980010947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb786d07d15700fb87b9ffadfe6b4686a0077a5a13d6a9422820a6ec76be0d464. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/ATR980010949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdee79711bbe456365949c3d699c6af6ee78b0f44a0a4365303c304d99eb26c77. 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/ATR981120921.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb6f54fe2d1c97d38f8b8bf5373c4ce5c06487cbafad7294d594ae9032f5f639. Chain 2 (Bitcoin): anchored in block 958734 (2026-07-19T12:54:58Z), 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/ATT251504420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe4bfe4cacad4f997a87a530b52bc3a8627078694a498507c252a09f24da0f1f. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:19:30Z), 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/ATT251504500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c348139e3971c7c90ce0a786f63ce3052ca5c697ae151daff2d5d760bdb0c25. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/ATT251605650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf33de0834341a655a2db74fa6068721b3468a8541439b2b4a657299ebf09c6a1. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:40:01Z), 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/ATT251801010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a01c457e837ee6936c3cff4e5e092d97dfc352225f2ca75f517afe0d2b792c1. 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/ATT251801020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x120960f2e4917b7f2ad155fbdf1008f2cc35147d028d0a43d189782294125b2a. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/ATT251801030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9595031a2c93e1b0f138228658b9e791dac4eb771721faf811aefb9e1ebf8c1. Chain 2 (Bitcoin): anchored in block 958251 (2026-07-16T06:29:25Z), 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/ATT251801050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd40487b27540c0eda8679e01febcca07c3c48ca4f8a09d7522afa4c0156d7a8. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/ATT251801060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2d8ef69bc705479e879da45b5f9d3915d011d079838619499d2536de946dee2. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/ATT251801090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a27f4bd7d6fab00cca839c557d67f179e576ecd98d2a1040d71cb390af6160c. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/ATT251801130.
20 Jahre - Die offizielle Jubiläums-Produktion
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdae51dc007ea229130d50b6315eb772287864ca8d96cb936a5778603c16a8c97. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/ATT252207690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5937ca60127366495f0d4c69780fb3d0aaf54cf1b30f005fe3eae30c58b35b1. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/ATT252207700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d96467d99ae81e7978eec9c54a35f3774c7853bd9fcb130e70d23ed38896295. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/ATT252207710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24c79d719155056a0f43b285a95238244f977a01ec310aa0f81da29138bac12c. 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/ATT252207730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa35bddc02ff78b2a071ebd20db18a0635ec37152d5b4f64840edf6c1d78e665f. Chain 2 (Bitcoin): anchored in block 958686 (2026-07-19T06:43:29Z), 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/ATT252207780.