1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0xd7fefc30c7d0811613543e4326af7f09fe4b681ccc8ac40d2d3e4d62796f9668. 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/8ae2d268-518c-4a31-9e0b-5a2ea61dfc9b.json and https://artists.proofprofile.net/proofs/artist/8ae2d268-518c-4a31-9e0b-5a2ea61dfc9b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb820ebb8a1d78cf4dab577aa51b8943c54221695eceb2e6437c3420599cda138. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5G4eSc9P9GFXqvlVkvgc6h.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5G4eSc9P9GFXqvlVkvgc6h.
{"copyright_id":"0xa32fb347ec44d8c119c6545456377a72e62d81c3bc118ddd733636b9edcb2743","isrc":"QZWV32469484","name":"Voyage voyage - Techno Mix","registered_at":"2026-06-18T21:10:47Z","spotify_id":"6kzcvFTG61NDFOEIQoJcPd","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa32fb347ec44d8c119c6545456377a72e62d81c3bc118ddd733636b9edcb2743. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6kzcvFTG61NDFOEIQoJcPd.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6kzcvFTG61NDFOEIQoJcPd.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11f2973685aebaa5ab367c62f89c786dc2ff2d365bb013fe2239ef999d267390. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/17iquz56C0MP1YtoY7oCAS.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/17iquz56C0MP1YtoY7oCAS.
{"copyright_id":"0xc2b07c0b5e71b5bfeb4d88fbbbcd8e7326a41fbf133ddb8002c4bbc19c7bf5e9","isrc":"QZWDD2446193","name":"Forget You","registered_at":"2026-06-09T11:20:46Z","spotify_id":"5Xyn4VZCtnvByOWcfw5LcC","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2b07c0b5e71b5bfeb4d88fbbbcd8e7326a41fbf133ddb8002c4bbc19c7bf5e9. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5Xyn4VZCtnvByOWcfw5LcC.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5Xyn4VZCtnvByOWcfw5LcC.
{"copyright_id":"0x1505c3b5d73ccd421206ed7117f16fd39040dcfd689d071198a251d47c8ddaa4","isrc":"GBLV62322260","name":"Angels (Love Is The Answer)","registered_at":"2026-06-07T03:51:38Z","spotify_id":"0quVbzPwHvKWDSYM4hgusK","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1505c3b5d73ccd421206ed7117f16fd39040dcfd689d071198a251d47c8ddaa4. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0quVbzPwHvKWDSYM4hgusK.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0quVbzPwHvKWDSYM4hgusK.
{"copyright_id":"0xd667aaecceb507455414aed659b256de46d9be74a10463425f461e66c454ecfa","isrc":"NLT2H2300853","name":"Rolling In The Deep","registered_at":"2026-06-08T13:23:53Z","spotify_id":"3onxHkG9dWBfkYqb6Vs3Ye","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd667aaecceb507455414aed659b256de46d9be74a10463425f461e66c454ecfa. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3onxHkG9dWBfkYqb6Vs3Ye.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3onxHkG9dWBfkYqb6Vs3Ye.
{"copyright_id":"0xcda4310a258eeff4de371e6f0c9bdf9b62e2cdf3182bd7fea041ddbf8d5305b0","isrc":"QZS672139582","name":"Like This","registered_at":"2026-06-21T11:09:17Z","spotify_id":"7887XKwK5JKx7enKWZldij","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcda4310a258eeff4de371e6f0c9bdf9b62e2cdf3182bd7fea041ddbf8d5305b0. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7887XKwK5JKx7enKWZldij.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7887XKwK5JKx7enKWZldij.
My Heart Goes (La Di Da) - Hypertechno Remix