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 0x046ba9e5cca25492ffb1a7bbdf0772942f09f361de93f26c9365aa3ba3d33204. Chain 2 (Bitcoin): anchored in block 953697 (2026-06-14T21:49:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/693a44fe-7dcf-4bb1-8778-b0d7cd4d362a.json and https://artists.proofprofile.net/proofs/artist/693a44fe-7dcf-4bb1-8778-b0d7cd4d362a.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 0xa0eaddc6f185be17e93d261be505b857f8d4909b4d777e3d07a27f5f844f160a. 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/US83Z2213012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x705acf698e705d1eab964c2be87f6a2c8a797cd8deb0e2873c6bec2169ea45ec. 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/US83Z2213013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87dcc7c12c779509d0f420739ca2aa0911b43289158456a28da817db53a3baeb. 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/US83Z2471070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68ee4749f1f1bb2efc0b89e65204e4f24e3e656716203a9dfd6fcc6641eb6565. 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/GBKQU2405870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01ce3c97c98fa70f68e94224f599030a66178f554ccf41f151cc8d6a4c0fdd3b. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/GBKQU2405872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb203fc39544fd03c26abe13d4f4063cd966e2d7232e0ec30ef587a2a9d82e22f. 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/DEBE72300956.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc13f772e8b5f9a1dd20cbdab1b1ae1241e7d50c6794ed08db62d66b6769bd6a8. 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/UKR6V2341350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76ba755639c80de7e43efd783765c9b33f61e858aad6133764f8eb5f26431816. 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/DEBE72200151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e3afa6090800271c8dad9e941ebfef0eea199b9ba5482abc730ee8092422648. 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/US83Z2146299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x935818ed3a238635a0bf01a6f323b27c1cb45af31a0da34ecbb2f3771a51403c. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/US83Z2213015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27e2d70ee6739dc2c53b74bee4958f1d2c1525a10eaf9ce614aeee35c3f757e2. 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/BX0BA2100247.
Under The Stars (ZAC & Skapi Extended Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2db2b66888cab976620d089123642edc4f5b3d8997ec2e9edce52b21043010f. 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/BX0BA2100248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x935818ed3a238635a0bf01a6f323b27c1cb45af31a0da34ecbb2f3771a51403c. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/US83Z2213015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a811f3d7eaf7ced90e7ffed4932df9a59d8cd3ca1ac020eaff0076eb4394307. 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/UKR6V2340943.
Modulism, Vol. 2 (Compiled & Mixed by Basil O'glue)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x759957393c19612fc96b1a4f2390e61df5614aabf6aadfda3c4dcb7ca19be6ce. 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/GBKQU2068676.
Nothing But... Progressive Vibes, Vol. 08