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 0x14469165a667c1fe3ea486406bd5ae3692963c019d03faf510f95e66882ef6e3. Chain 2 (Bitcoin): anchored in block 953827 (2026-06-15T19:59:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d7ce1e7f-d754-466f-beee-2fe8b1d2437e.json and https://artists.proofprofile.net/proofs/artist/d7ce1e7f-d754-466f-beee-2fe8b1d2437e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Ohne Freibier wäre das nie passiert... (Musikkabarett)
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 0x22cb8794626bcce61537ae46905640fd6038d67f4ba09943e4fdc3941abbf0f2. Chain 2 (Bitcoin): anchored in block 956578 (2026-07-04T02:23:20Z), 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/DEVL12000240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x317bb4f4d5fa423404ed487f02aaab0b5e7c8eddbf10dee2f065283ca097d18a. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/DEVL12000241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67a5f9ddfb7f6c7fa256db6f53d5b7161391b1597452848951e991f5453ec256. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/DEVL12000242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa17316eccf6e741bba3545d1fbe66a3f0837c3fcd907ad67217cb2b69417dd1. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/DEVL12000243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x344dd11d0354774ceb5c7206525195fa80ac559406c9153111340e9a98c23b04. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-21T09:04:41Z), 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/DEVL12000244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc10892f804bbc8574cd71852b657b971511418220fc26110d40f9224e980ff4. Chain 2 (Bitcoin): anchored in block 958476 (2026-07-18T01:26:56Z), 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/DEVL12000245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f9152e631e13db0e04358f0fee51e1cb061239b61a74e78cfb13e37379bf007. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/DEVL12000247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca044598d060102cca2b6f4e3cd43e2601dbdcb5ca439f9c3f7dae229362e85f. 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/DEVL12000248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bce5b61092618ab30760b9ef9d09b852bafeb5db844434e75ee2de5677e5a21. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/DEVL12400548.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x944bbb6161b36203da5e7a19c647609497ba6eb809f88398fb5019446d6b6bf8. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T04:55:18Z), 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/DEVL12400549.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92145b0c331e260e077cdbea251797fb1acf510d111ef9fadd338c4dd76bc1b9. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T18:01:47Z), 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/DEVL12400550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x701b392c41481790e719612c347c545a32672d16561d2c6f922199c226ad2bcb. 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/DEVL12400551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x673c06674103b1a2871d29c51fbc5bb0629a50a47b4635104fa39fa3824939ca. Chain 2 (Bitcoin): anchored in block 956620 (2026-07-04T07:11:13Z), 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/DEVL12400553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8807aeb4f07a85ae704756aedef358714083d638e43909d5b4d2793006873a9. Chain 2 (Bitcoin): anchored in block 958582 (2026-07-18T16:47:25Z), 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/DEVL12400554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc689021f50cb7aa692e44a24f47a0b3d154d8ce43b2fcc49e5b5dc2f708fbe02. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/DEVL12400555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b0939eef44108599b591aa2b983533beb73546fde0e6cb4f3d316b35ef0d75a. Chain 2 (Bitcoin): anchored in block 958622 (2026-07-18T22:58:55Z), 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/DEVL12400556.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c661c07936236b7d8352ef9cab97be2acaa6cbc3f9e9a574ce96b976f6e6c52. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T05:14:54Z), 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/DEVL12400557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cdb0c51d71ada922568ae6f7ef009b81a7d3133d8658ef68f21a0ea1a07ee0f. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/DEVL12400558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a82c3e3c499e3a4d3f89c0aa0620df76662520c85c80b2bccb27fbbb81ab5db. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T19:04:16Z), 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/DEVL12400559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb81812c14dff4bf49ee4f373d65528065cd846ae93d773df143966d529e7e85b. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/DEVL12400560.