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 0xd06ff2aa87f0cf8ef27989127f406962ea3f5ef3596d383c72445c886f228c12. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/116073af-d71f-43b6-8f02-8d8a139960a6.json and https://artists.proofprofile.net/proofs/artist/116073af-d71f-43b6-8f02-8d8a139960a6.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 0x101cc2b6fda756b5d6dd480a45a36231d0c84e5d2185a73bd0b30e627c7dd006. Chain 2 (Bitcoin): anchored in block 958554 (2026-07-18T13:17:01Z), 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/KRMIM2180666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a6fc124a673bbced62688fdfec353904b7b6edd7f9765035a58a2b35788cfd0. Chain 2 (Bitcoin): anchored in block 958816 (2026-07-20T06:32:28Z), 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/KRMIM2180665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9505e9c62c21fb9d8179442b8a33f4bc5bbd1fa6befe958e4fee7e6b25814df1. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/KRMIM2180664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaa2c3a747f2e6861e874df761d48ab0e30a0b3e7609b332525353d9d00882cd. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/KRMIM2180667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1b422be98548787cab02ec854f0e496df1df211f6ef12ba33c0334b3a4a3995. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T01:54:02Z), 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/KRMIM2473107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8852b5625122e8209a2e31951b3b6bf41392c8edfe82f8b8c4d574a4fdf67160. Chain 2 (Bitcoin): anchored in block 958793 (2026-07-20T01:51:23Z), 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/KRMIM2473108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae255581fe6a1d428848dc4de92bbbed1d817f8bc21ee7134f5832db7b516346. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/KRMIM2473109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a47169809090b6fc2d893e5ef92b9f90644be1fdea191304a2794730ab32c35. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/KRMIM2473115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcca57a8829dc0ff2b10f1b29e04f70aaacb2339f208eb63f8843e80b1292c6d6. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/KRMIM2473118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1c9795f381651b29e2a7d99c441682d62cc8e3a335459932beec5c6d98c31fa. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T19:55:59Z), 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/KRMIM2473120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e7df5fe2b344b0721762e2e112000e344284fe4a49b67e2df4ab18288c73cb1. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/KRMIM2477964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc529a2ca9044a78af172d1925ba014b7240c4170848d6f850c8215f7632e7a37. 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/KRMIM2477965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc122db4a4c7861db60e90ceba16e3069f71fd2c5edfff3ce9efbe0b848432484. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/KRMIM2477967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83e70e2734a51d9d840556ce8d0066e8b46a31032b3c1e343e2c1714b994f668. 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/KRMIM2477969.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x384b0c1a0aded3ee4097665c3a9177d65dcac33b39f79bfebf7ecd31588de829. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/KRMIM2477974.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad4cd84f13dc4fbe8405005aeab139baf4fc09e10659d302f4261717e3f4f1ad. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T16:09:49Z), 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/KRMIM2477979.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7b86e54e63e30343069f36963a37f2dd16aade735dcd18f725eeed014e8cbbb. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/KRMIM2477983.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1bb89b98bda249dd236136a49edab865ac06be54a86760d2722f87313a151ae. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/KRMIM2477984.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e64602a3b5bd87915c71b49e010ea990a42f9e8dad8f8b6dc92873d051ca51a. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T09:16:54Z), 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/KRMIM2477990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a929f40c1c9092231301b2c6f8fca80b58538c628a27f9ff8a50a46ebbb907e. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), 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/KRMIM2477991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb12178ad215fdb52dd056b9224582c0c93f6814164f66da7feac78256899a54. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/KRMIM2477997.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf52fcb8444589e52036d8d40031c085f945e2166d18b27acc0cdc5e8f7975012. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T22:16:35Z), 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/KRMIM2478003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb138a76b206989e8a8f9822041a3f38408964c1e1618ab923edc977a5695c2c2. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-20T01:35:38Z), 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/KRMIM2480272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c60c190d2ff4f05312685c52aa1de87db61dfcfc6fb5e8aa131348be0b01591. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/KRMIM2480277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x406fdedc4969304881a2c674ca17bd9ac33e12d8429fb3494396cb5eba362eb6. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/KRMIM2480278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f2383ab2a3e73845fac39d1c23241cfac5fa68c1df593998d84f809625b583c. Chain 2 (Bitcoin): anchored in block 958501 (2026-07-18T05:33:04Z), 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/KRMIM2480282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x983683c12f1374fe7a704c9babcf4107910493b70664af30e94174b1bd2d6c74. Chain 2 (Bitcoin): anchored in block 956713 (2026-07-04T23:03:25Z), 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/KRMIM2480283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc582ed286325f907f9e21157d8802ba70fbfd3a3aa2a656cbf4ca6ba67eb002d. 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/KRMIM2480288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07e06e21785618b32defa262ae5b232d0ebed5603d284eefc85760b64cb03f52. 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/KRMIM2507672.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bb78f654ce4872a443ffb8b3a6a7ca9d0cb3a1eb63755a6879d4369a08e6d0a. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/KRMIM2507676.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b4a659f9bcbb1b3bc1059107c7fcc3544a0f817c58b7f7963bdb5642f5ad5bd. 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/KRMIM2507683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c335e2a661ea667b4a2eede93b9f42418a9c5f1ba6219960a5b4ec24b4654e1. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:10:08Z), 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/KRMIM2507688.