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 0xcc3c2f0c88947f8ca0aa19d8f3a1c6a0745120308a8e195c77eeed009d5bb710. 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/364f4794-e61f-4a10-b3fd-7da3b7de0401.json and https://artists.proofprofile.net/proofs/artist/364f4794-e61f-4a10-b3fd-7da3b7de0401.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 0xf6d56c72bf66efd7add2a029ce79fb3477ed045720704312880bbdd5c652448d. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/TCADF1725309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b43592a5fff97667302f3e77e586d895a7e6bdb9cc40edc7b7b812eaa0280b4. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/TCADF1725319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ecf4763194d093e4011e9fcc2e7611358930eeb9693410a57743802ab79b966. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:52:38Z), 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/TCADF1725323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49040ed4c5cbee1cb08f837efb1617471616b8c1bf7ecb76b77e315cae8bce27. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/TCADF1725325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbad9e8c3f6320fbb8540040dbbbdd94d330073dca3a9ebd59db2dfffb3c3e39. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/GBKPL1971856.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x630ff567171f956892b60c641096a225c02e972c0cc4ef25bd20c32aea923421. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QZGLS2091922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e6754c95d40f958f83b5e3d4efa8f819d092d191f9ea99b7796665004cc1870. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/QZNJV2046426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x869b3a2f50be45a77cd608dce71514276aaee59d3a56efdecb4d9e2eb70d5d0e. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZNJX2043874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37a00e755523ed68b9de51c05f199447c69e0afb12fc7cbfac7bfec58276a403. Chain 2 (Bitcoin): anchored in block 958812 (2026-07-20T03:24:09Z), 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/QZGLM2193648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x099a0194e4eba6a672131c3e44fb56a184817d493534223927e43bbde8072e0e. 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/QZHZ62112580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x030e8b63e3232809e60081ff545eedb3a127ebdf42f9dbdbeb59c78cf489d0d6. Chain 2 (Bitcoin): anchored in block 958827 (2026-07-20T07:55:49Z), 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/QZHZ62112576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4dc5dea2f11a6da6e40a0e55edbe1593cc71690be475e9cf58a972646b8d5b6. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZHZ62112582.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94bb619702196a486803b03e993ba90ab6e2211b147c31f7cb9b3b6ee045567a. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/QZHZ62112579.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3c1cb3c679d1a5d40f2f53b6c94b9664e7db85079d1db170cd274aaea361297. Chain 2 (Bitcoin): anchored in block 958658 (2026-07-19T04:09:09Z), 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/QZHZ52157825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fe4a7f364f0488025457164145258b48cf73b9380148825ab1916dba3ed2b95. Chain 2 (Bitcoin): anchored in block 958568 (2026-07-18T15:23:47Z), 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/QZHZ62112581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2d8910abf25895089ea63d3a586bc2310a80ba8140f08a1e42345ee917c92a2. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZHZ62112578.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53d236e3a0d431a14cce88a2392a007bcba232c824830873184cf420823a23b6. 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/QZHZ62112583.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a4d91120590a2fb37c07d0722e761ee12c847b3e9765c74ef149cc9644d08c6. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZ5F42300018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb832c28ef6da8fcc2fe72bedef01c5ad70ea992df426da84ee92f8d2d3211f59. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/QZ5F42300019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59e2d351d0d4ef00492bbb159f31171ce6c949049ba53c0b7ca035b414131409. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/QZ5F42300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65ac82792bd69e4537c3db6d10709ea61378939c3a68bcd741d21d2f91f46782. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QZ5F42300022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc34fa39dc88919a959afc36602db14600c0809f52db35695152783aba5f40ef. 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/QZ5F42300023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x237510f2f724a28d6748b55462850317763415215687be2766f204fe3eeff455. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QZ5F42300025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x288259db357541aec7974f8664fbf1c7cbc46d790c715fa30c394c1d18d3070f. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/QZ5F42400039.
I'll See You When We're Both Not So Emotional
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa70e806b34f343897f195c1a3207ceb0dcb47bcc23227a06f668cc849e6837ee. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/US3R42450007.