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 0x1a872d6a18bf98a9f01a6de630801f940a30c7641aeaa8780507798e628bba3c. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/53f6d6f8-023d-4fb4-8899-bf184f984b0c.json and https://artists.proofprofile.net/proofs/artist/53f6d6f8-023d-4fb4-8899-bf184f984b0c.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 0x04ff87498f68ef0ece31943c161ef544d5e8d638707e5b7f2d4b9c32773c8edb. Chain 2 (Bitcoin): anchored in block 957874 (2026-07-13T15:43:57Z), 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/TCADF1786040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb005b82cb274af3c87b36efe8869644317da4d92b88773c9f61f41e09e1e8529. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/TCADF1787027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab76e814e4454ce6d7a36e98468fe942a9e170f94a7a1e90feb3109fd94a3ae8. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/TCADF1787040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12275049c56bfe60be10962aecb97647234348400c6b058777907d0eafb58c3f. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/TCADF1787068.
The Devil Wants to Dance Again (OurVinyl Sessions)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c1ffb957607d9a65b768c1f8fda65481af68f771d2afc28c473169266511147. 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/QZHZ32128617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53b2c8b97bd158902f9acfeeb3abc203b0b1ac2af08b18728b9e1ce0dd22566d. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/QM4TX2169226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8450215d2e1f3de6ec16ef840d8a5686c12c9cee9b54ab3a37d484517621abfe. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T04:29:18Z), 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/QM4TX2169224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1898e9ddfb2cc0223e1a4ffcf3644fba9b46b3df2065a7d6a1a9200043ab65e0. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-16T00:07:10Z), 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/QM4TX2169228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0883de70c313772bd8bffdeea77d1f375723260286a3d824a565084675c596d7. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/QM4TX2169230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9103d024fabbafa749493b57566953514b4a8574ff94e1cec7ce7d8a1613718. Chain 2 (Bitcoin): anchored in block 957805 (2026-07-13T04:34:37Z), 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/QM4TX2169231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9eb64de8fb87197bda11c6ed856bf91f3efb01f107b8a7f2c30900236f606b1. 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/QM4TX2169236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x646b51ec7ee88670ed232b13a9ceda58e9b3042a46e3ded4936faa5da208f302. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-20T21:55:12Z), 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/QM7282383857.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe89ef06388b16b9417059a422149d5d188462668f8957ee107f8a6249b76d286. 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/QM7282383862.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x905515ff1f832fd2597f4adab8ba58f0e39016de15db3c71dc040982b041ab01. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T09:41:51Z), 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/QM7282383863.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46f8b96e7ac88f7ded4e381f59910adf1f535150f6e3854f72e9ff87a55c5e4e. 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/QM7282383864.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91a32fb1538fa16a3fe43ef2917ff476c0bc8f85af7bc274e2ce1c1f0e7a239f. Chain 2 (Bitcoin): anchored in block 958561 (2026-07-18T14:22:01Z), 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/QM7282383865.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13857304d6e7a5e5dc20fec16a30cc152a2a85a2435cc5b314418754d133ba39. 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/QM7282383866.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaaa3f0838183c9bb8c5619306bdee7466d6a3934f7dcf492f6de5081ad112d5. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/QM7282383867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b496cee700fe83704ba298114d553497e5da16da6b164717c7682bf13d8ca69. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T04:29:18Z), 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/QM7282383868.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafa928da863948de2a6c786747d4c3fa5e88319dc647958ae0dfb4712ad9742c. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QM7282433260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7ee2bc46f9d1dcf2bfbc14eb5fa2bbb615e4ed94b5d4f2fb242962e1ddf909e. 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/QM7282433262.