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 0x552a639370b01bd169708c0fa82e75485fc3e32f859929521bda56c49aee5d77. 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/75569f13-281a-4399-9207-ce00a43f8b01.json and https://artists.proofprofile.net/proofs/artist/75569f13-281a-4399-9207-ce00a43f8b01.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0xcb332e6badf26ecb88184139fd0c797f792718d9a8bd411c10df4d6ae33b1828","isrc":"KRA381700317","name":"Don’t Wait For Your Love","registered_at":"2026-06-10T12:47:23Z","spotify_id":"2k2bJBtMvi1GIrONtpnRLq","type":"track"}
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 0xcb332e6badf26ecb88184139fd0c797f792718d9a8bd411c10df4d6ae33b1828. 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/2k2bJBtMvi1GIrONtpnRLq.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/2k2bJBtMvi1GIrONtpnRLq.
Mr. Sunshine, Pt. 8 (Original Television Soundtrack)
Stranger [From "Mr. Sunshine (Original Television Soundtrack), Pt. 8"]
Stranger (From "Mr. Sunshine [Original Television Soundtrack], Pt. 8")
It's Okay to Not Be Okay (Original Television Soundtrack), Pt.3
SISYPHUS: THE MYTH (Original Television Soundtrack, Pt. 4)
You're My Light: Lacrimosa - Instrumental
[THE SEASONS Vol. 9] <Choi Jung Hoon's Midnight Park> ReːWake x PARK WON
Destined with You (Original Television Soundtrack), Pt.1
Mr. Sunshine (Original Television Soundtrack)
It's Okay to Not Be Okay (Original Television Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x342e57599467be5b44879613cd9c289482d23b416cf21582a910794070e10346. 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/26QYSItEKZvAp5wPh7pdZG.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/26QYSItEKZvAp5wPh7pdZG.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x127b249b465776cac0a952982b399b93fe223c54124c02bda535a147b4a2efe7. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0hUp7VZ5dwEkq6swC6GdVU.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/0hUp7VZ5dwEkq6swC6GdVU.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07b774eb936b0c54ea34435214950744cb0f7f946bc6ff3162ed9d64f79b93a0. 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/53XUxWxVk1RYLk2BoZBjh6.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/53XUxWxVk1RYLk2BoZBjh6.