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 0xca7f9ee93625b37294f302fae013e1fd803d942505b576bb993afb8b4a781cc9. 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/cfbdefc2-484b-4afe-b146-1df157916111.json and https://artists.proofprofile.net/proofs/artist/cfbdefc2-484b-4afe-b146-1df157916111.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 0x0275d64aac4e8d5591c54c0b0fe97916fd1b1d63a4f658a67c42fa7af7e6294e. 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/DEQ022284547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb0151864ca9b2ed8e8178e348674da9353728434b4c836c39875b80e2f2ca82. 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/FRX452423826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71563474f86af053c07ffade6f4691a462ccf79a1e8bde251b4be96f1a3e5837. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/FRX452423099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x378d51012fd506dcf2bd92c69355c11cfc064d94f608bab4c26389369522ec7e. 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/DGA0M2326314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2095b1ecdc4638ff9b873a45a41174b0f67c9955287015c0ea9815fabc723dab. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/DEQ022380726.
Far Away From Everything (Bastelbande Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19f0f364fea5af1fb33d878bc94559f230cf34edd5c7f520eb7f896dde9193d7. 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/DEQ022384411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x378d51012fd506dcf2bd92c69355c11cfc064d94f608bab4c26389369522ec7e. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/DGA0M2326314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2095b1ecdc4638ff9b873a45a41174b0f67c9955287015c0ea9815fabc723dab. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DEQ022380726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0275d64aac4e8d5591c54c0b0fe97916fd1b1d63a4f658a67c42fa7af7e6294e. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/DEQ022284547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8010d217a1193207a00d4f330488f828e67c85c94f4b38733de78b05fa870d93. 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/DEQ022384400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf04020927fce1575eadac67a0f85d0919492e9da51e143ff2b041033da7b0125. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/DEQ022384398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb873b405d3f54f82c216b464114c3c05436ee76cb5ef4c87fe22f0c87601f9e6. 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/QZDA71838269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8010d217a1193207a00d4f330488f828e67c85c94f4b38733de78b05fa870d93. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/DEQ022384400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9acea8509016259066e27560a33789790f90903e29d7491d2ba32b335a6d60cf. 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/DEQ022384401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff545a9ba7efe000592645783c179340cc9e2222c6449cc85a4010c0ea532a3f. 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/USANG2041286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c6d67561823ea580100f88c28d95f1ee05b55778fc35acf299b6565709c83a1. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/US3DF2019118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c40ee03d391846a2b3f2e66035194061f8db3da89fffc734e9594d7e0eeb854. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/DEQ022384404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x875b3de4db47c66f59ab56b18e8caaf01d91c0c2c2520cb00314253fa75363f6. 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/DEQ022004031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50c4670f8b89c7bc71e8a2b1c11cf763292d81710110a58d82a72c50781c159c. 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/DEQ022384405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3ecffa97cc2ab5bcdc159c0ce12e96beafaa8947d81c72d864a5d003d2ea060. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/DEQ022010222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x083cd0b13b23883bf29fb5b2f25644dcce4d01906392d0b8b497c00c69fb6c63. 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/DEQ022113330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ad0a842beed8d3b285deac23133da5a66f2570f4e0c8d1cf0ab87124336bad9. 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/DEQ022384407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8da144e7a5058e1e21463641b391a30ec914f69aba5be01932b5988229ed247. 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/DEQ022105665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99226ba3aefed403b025050960eeb169fa29b428f686a5d5c8313986bd3e1cac. 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/DEQ022384408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81617414c00c5890330ad560347bb684bff2dd2a2e09314bd81c61e93c091c3d. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/DEQ022384409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd4df18c53fde14429c99802db255452e125048cb7a4369c811b5dd348ba31f8. 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/DEQ022111419.
Far Away From Everything - Bastelbande Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1ae502a8e431646d3672d5e6e06cd687c831b81aa2eff8b049de3908fc0576c. 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/DEQ022384410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee3c08cfa9af4fc468a616299c5fda41e3ee81f75951312dd28dc8031f10857b. 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/DEQ022111418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19f0f364fea5af1fb33d878bc94559f230cf34edd5c7f520eb7f896dde9193d7. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/DEQ022384411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0f56c3cffe21836ff97767f47f8cce0074a51e8e6bf30756862831e818ecc8f. 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/DEQ022111421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb79f380b27fdd9ba61b81e24f11468c96e062b74f2487cf8b572e6b50638ded. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/DEQ022384412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73341d6b370aa225d35444dc703d2c8ff91536a188dfd85ad69ab9370f267edb. 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/DEQ022111417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73341d6b370aa225d35444dc703d2c8ff91536a188dfd85ad69ab9370f267edb. Chain 2 (Bitcoin): anchored in block 957032 (2026-07-07T11:43:09Z), 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/DEQ022111417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee3c08cfa9af4fc468a616299c5fda41e3ee81f75951312dd28dc8031f10857b. 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/DEQ022111418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd4df18c53fde14429c99802db255452e125048cb7a4369c811b5dd348ba31f8. 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/DEQ022111419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0f56c3cffe21836ff97767f47f8cce0074a51e8e6bf30756862831e818ecc8f. 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/DEQ022111421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8da144e7a5058e1e21463641b391a30ec914f69aba5be01932b5988229ed247. 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/DEQ022105665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cb21ca54d72465ed38776cbaa73c50df8be841e144389d34083306fabad0dfd. 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/DEQ022111423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfab4301299d06c332cd7c900e0eb6b61aec1af24cef4e9d9e89879b111a49fe4. 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/DEQ022276259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x950ea5c65452f24cb359ea9169f2a2f3da6d32735e3e61b83964847ece5d92cc. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/DEQ022112329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x083cd0b13b23883bf29fb5b2f25644dcce4d01906392d0b8b497c00c69fb6c63. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DEQ022113330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73b80cd0ba5f8d6de126ae229f7a94404a14e9bbaa91cb177002b671927f1f34. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/FR9Z62000574.