1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0xe2e54a5ce64d49c756e861720d95272a846958900d184c67bfbec1e1332c9047. Chain 2 (Bitcoin): anchored in block 953660 (2026-06-14T17:20:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/53369e4f-ea1f-491c-86df-d6e2d289e47b.json and https://artists.proofprofile.net/proofs/artist/53369e4f-ea1f-491c-86df-d6e2d289e47b.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 → block OTSBitcoinBlock must exist at that height 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 0xb0e16e9a4c4ca8eaf402a22d000c9dac39fd34bf18887e007105a793edd7e5b0. 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/CZA751951502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b06ff799c10d8720d770780039680bc4936c175ab3e28585e6a28b34fb103c1. 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/CZA751951504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1943758b89a2a4ca45df8f1c17755d7e3176328eecee055a81d5013a4f51de15. 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/CZA751951506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfe06b112fcfe753c0a9d345f140e80533a2839f1aaa028451dca91e7d537eb1. 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/CZA751951509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43c3eb97bcb1624f7dab9b49554a392526a74bf7243480c9e49e5aa65e4039aa. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/CZA751951516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1da877cea5aedadf14f0db2293b92357fa76d7809cc5b8be383b7594a7628099. 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/CZA751951532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69e4cf2f8815c703cb7b38e81a039e9e4f8da10a1c337666e098d26210ffc266. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/CZA751951522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa36fb95a5432a43b68d493cf03c4804f84e630ebbec476c46350012d9398b430. 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/CZA751951523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9f3cc062b94c36c86af395f05d023c0422438e3b89dc6fc9f07399484daf69d. Chain 2 (Bitcoin): anchored in block 957253 (2026-07-09T03:08:40Z), 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/CZA751951525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x578f1f39cf00138c758286986ac313b95814e1c848063975685a088ab0799169. 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/CZA751951527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb6715d7a07edc63f337394ed12cf3456573ce05b057b4a8f6449027305ca153. 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/CZA751951531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81cff20f04cd33eb73e135919dc3df913470d986584aa1394cac0daa8d74e8e8. 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/CZA750115501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd4af40351dd49df90bf56045881d699f1c77ab0d3c53dcf6a8e25c6bd6a8298. 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/CZA750115510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc00e83263b60875661e1085f2ab4dcd1906388d84825b3f433709b9cd89cb29e. Chain 2 (Bitcoin): anchored in block 957041 (2026-07-07T13:25:45Z), 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/CZA759909602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66bd3938d91ecd5e0b7ed7162f5242734b3bc4162ae85f77d95c45cdf4a8062f. 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/CZA759909604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf4743dc9834969d9b4f71f9d0df28506e47681bad6cdcab401d7656a586839c. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/CZA759909606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46e9de09bedc7123715ddc6d40c6cae6e54547f9449f67daf222562be3d1c489. 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/CZA759909609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e7ca98f75947aab358d541572e31a57129aeb77714ebada7db748202f18eadf. 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/CZA759909611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x104ab01ab285bcafe01186a18360bd2e6c3c1365135cc418f306f861a14f6f29. 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/CZA759502702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12791564dda34189963d654288f55eed27682f4bbd811d571279d6ece8cab62a. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/CZA759502703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc669d3d1d8560d35366ba82bc0f3201e4b7293273df0bb5a4a4513998645d1e4. 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/CZA759502705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fdebf79c09cf610512a63f8db2035c598358eabecc71af111d06695bde8eef5. 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/CZA759502706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6b377babcf8a79a43b3050bde2bc51cc8653e82a62fd425c57cbc854e921bc4. 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/CZA759502707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0743bc4e644c23016cf3635e0f220349eb1c0fc8abdca69b9ec10501a1291e6. 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/CZA759502708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x530aab79dfe0c5eaa58629384bc95a90ebb033cc1a3cf4e8b58424a90b1b5414. 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/CZA759502710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c03d54d2c105788ad92d7ed41c3761f174dd3cc9359656233267ca7cb20f586. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/CZA759502712.