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 0x84490326df58043e0a6a726585522d8cbfa02e65eb7740640627848a3f689140. 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/d98f14b2-3188-40f4-9342-fc874f62677b.json and https://artists.proofprofile.net/proofs/artist/d98f14b2-3188-40f4-9342-fc874f62677b.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 0xc37c6f3088f2460295e66290d2a967483f2b73395245e77df7969c8a63e24051. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5LhBiXMtQb1R7FWt9O9LEF.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/5LhBiXMtQb1R7FWt9O9LEF.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc37c6f3088f2460295e66290d2a967483f2b73395245e77df7969c8a63e24051. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7knU5TbBcZ15sZ4lye0uKZ.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/7knU5TbBcZ15sZ4lye0uKZ.
Малиновые Волосы - Midnight Daddies Summer Edit
Шлях до Перемоги - Original Soundtrack до благодійної кампанії «Шлях до Перемоги»
Шлях до Перемоги (Original Soundtrack до благодійної кампанії «Шлях до Перемоги»)
{"copyright_id":"0xb0ffcd6bdeb4c8e6478cf219c1c39b6bdb5fc3416de1831b3602e975b51751bd","isrc":"FR59R2369716","name":"Шлях до Перемоги - Original Soundtrack до благодійної кампанії «Шлях до Перемоги»","registered_at":"2026-06-07T09:17:59Z","spotify_id":"5fnMhsim8kBCkkT41ADQHr","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0ffcd6bdeb4c8e6478cf219c1c39b6bdb5fc3416de1831b3602e975b51751bd. 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/5fnMhsim8kBCkkT41ADQHr.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/5fnMhsim8kBCkkT41ADQHr.
{"copyright_id":"0x35bdf2ac7b64f6ef3cbc9e1ecacbd5114eb07969cd934ebbc2995d80ae6cdc88","isrc":"FR59R2298652","name":"Разом до перемоги","registered_at":"2026-06-08T05:05:04Z","spotify_id":"0wx6AOjvLHkRaNJJPYSAHD","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35bdf2ac7b64f6ef3cbc9e1ecacbd5114eb07969cd934ebbc2995d80ae6cdc88. 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/0wx6AOjvLHkRaNJJPYSAHD.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/0wx6AOjvLHkRaNJJPYSAHD.