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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f7c74581b003d443ecd03fdacd2d334f40242648c683d9109f9c37140b4cda5. 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/60c724a6-8a51-4dea-94f6-c6477e3a4b5d.json and https://artists.proofprofile.net/proofs/artist/60c724a6-8a51-4dea-94f6-c6477e3a4b5d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Fætter Hans Og Alle De Andre [Det Bedste Af Det Bedste]
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x816765ab181004de48aa85d0ee57d97a3d03f83932bfeb85dc7969aa8feedf37. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/DKABA1100936.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d98316cb12d9914abacd480883b12c22a846288c8f468d64b629760b3f244c8. 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/DKABA1100937.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27a28541353f8b55cf0a6a6f8ea888ee45b0918af1cb8c75dd9f50255828e444. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T18:47:29Z), 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/DKABA1100938.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f8974c19c31ccb293348affbac6e5b55152aa6108afd4b6fb5e0cc5accf7aa7. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/DKABA1100940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7328ef16cbb51dff5210be1e792336dbf1f382a50bc6438a906ac902087b496. Chain 2 (Bitcoin): anchored in block 960506 (2026-08-01T03:50:58Z), 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/DKABA1100941.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9a585d448355128634743246f05298ce326be7b50451c60a9bdeade29e1d002. 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/DKABA1100943.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab2755e09c81f9e57fbd4db2b3a753980d74d03944e5c1646e4ec8dd8b48568a. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), 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/DKABA1100945.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacce45a32945ea0ef520f913c8e6195a022a0b9458980bab752fa18acb26daa7. Chain 2 (Bitcoin): anchored in block 960407 (2026-07-31T13:26:30Z), 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/DKABA1100946.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3aeca4caded79102550eb7126f9211866758d4486d299280736dcb506c751865. 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/DKABA1100947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9db7d143efea090aee20c75477e733353d5ec864dea1a9f511634e9018699146. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/DKABA1100948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb573a31cd49dca33f4a699f2782cec23b1c96942bd90e9609908b72adb1609c. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/DKABA1100950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0e1285b91a9ecbf396736aab1a049b962a63fd79313eac437f9d40d592778e3. 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/DKABA1100951.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b120e1326db54b58b559a41e668809927af916cfd7526c4012ebcd014dce4b3. 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/DKABA1100953.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf5a792969e65ac9dfbcdebc53183ad23af47d7f63555beccc70fb69e29c610b. 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/DKABA1100955.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc92529a0fc535aedf5d1037634d497744fc4e92285fff5087969050deb500e8. 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/DKABA1101961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc50ce595d60e6ab946c9be850e12e4603032559e499342745168c8bb1d564d5f. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/DKABA1101962.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd36eee8b3af2d03bf4deedec8be896771bed0bf4810b6653dfddb8ce1775bb5f. 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/DKABA1101963.
Tænd et lys for kærligheden - Tand Ett Ljus for Karleken
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11ccd4b8a4147069ec1209e1d90c1845789da85de3957ef29b61d1df4f3ce3cf. 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/DKABA1101964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99bfedeb0038b6d70740032163f19373d290989d35ea78bca237c670abdfffc9. 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/DKABA1101965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0148cda59b98b9c742933f4644333d2d2bd902dd52d03e4db16ae339cd48bc4e. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/DKABA1101966.
En kurv med blomster - En Korg Med Blommor
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4426d930cef58a6817eb286e2de377019e838547867f22f61ebe15e17335ba34. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/DKABA1101967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbbb6748663a9354608fd5410a286139f10ba0c6c951d377f1f9b648d54fe3ca. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/DKABA1101968.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f4133f00ba2abe353e3b0b9b31e4ac2ce4c05b9faef0463ff2110c84407beeb. 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/DKABA1101969.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ab55daad1fc4e2a7c7ab864831799269a8e809110e8a6def6895b4111e7d1e8. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/DKABA1101970.
Gi' det en chance mere - Börja På Nytt Från Början
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79235b1c99b0b246e4d0f46ba6ea5b0cd8ed26f9abd9cfd6f158c412729b3417. 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/DKABA1101971.
Hvis du gi'r mig tid - Om Du gir Mej Tid
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3f065517fdb2b4a498d1a0e9af3cff90b8fe85c8a0a61f4b20e7c92442b16eb. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/DKABA1101972.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9aa843ad0b859c19bab956db5318c0923482330bb01f64ef46eab8cf58f5895. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/DKABA1100954.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d98316cb12d9914abacd480883b12c22a846288c8f468d64b629760b3f244c8. 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/DKABA1100937.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04177414bc2e181834edb3274b1390085705a390489d132fcec6c810671b32e1. Chain 2 (Bitcoin): anchored in block 960314 (2026-07-30T21:00:46Z), 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/DKABA1100952.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6896ee71701c0b280405df6b92b803b8b314f525f5561da3bc3075bed9cbf958. 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/DKABA1103352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7b926a1616d87d0da18f7474aef3bd9d301a98ddc3d6099716f0e40310cb270. Chain 2 (Bitcoin): anchored in block 960456 (2026-07-31T19:53:57Z), 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/DKABA1103353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d9370300a21e72ff29085a4fd4472c92ed719c0df8894bb718834594bafb060. 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/DKABA1103354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5478e1dd860f42025339678453c3c1cd9d68fcd434521c8167863f94eae22b21. 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/DKABA1103355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce1c3576690a65417befd5fbed06551588c8f89d1e84ed2277eac69a634ef107. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/DKABA1103356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x218f2bbd5063d5835d1bd4eb7a65761faa1461a1e7402d126a0636deb4863e29. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/DKABA1103357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa38d9f5c23525fee0421d8c26c5c20b1492f1effd2e331cbb94c80dab196ac3e. 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/DKABA1103358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3de70f21a1a897e02f77394baeda34b98fcf96d998476e27a88637751ea9fbb2. 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/DKABA1100956.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb90abba8c77a13d74ad7195d9e9e078aa9902168ce6fbde554525fffc22b7d7. 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/DKABA1103359.