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 0xef7dba62e26097a0fb31c1c9091cbae12645feed7327b36fbe78a066d2dcf041. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/43d141e4-c792-4986-ae1a-6c7324588416.json and https://artists.proofprofile.net/proofs/artist/43d141e4-c792-4986-ae1a-6c7324588416.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Unknown (Till the End...) [Original Soundtrack from VIVINOS - 'Alien Stage', Pt. 3]
Unknown (Till The End...) (VIVINOS - ALNST Original Soundtrack Part.3)
Cure (VIVINOS - ALNST Original Soundtrack Part.7)
All-in (VIVINOS - ALNST 2nd Anniversary Remix Part.1)
QMENG - Messiah project (Original Soundtrack)
Mi Vida Loca (VIVINOS - ALNST Sub : Till Part.1)
Scars (VIVINOS - ALNST Sub : Till Part.2)
VIVINOS - ALNST 1st Anniversary Remix Part.2
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 0xf941319e222677371dc15af5db830b46d73a689baca05b499c77a00daf696cbf. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/KRF252302780.
My Clematis (ALNST 1st Anniversary Remix)
VIVINOS - ALNST 1st Anniversary Remix Part.1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35cf39c0b92664a8c303ec37c60b8cf77f9bffbfe3c65ea886e531cf25b10708. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/KRF252302029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0384355c1b62cbcf5b3278af22badb32aed7dffd40a47a0dd975b9c3b26b196e. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/KRMIM2455012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fdebb54ae32d171d6f896046e5880e3411b7d2bbafe87310e3e5ddf5fd7ae6a. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/KRF452300512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc49cd1c0c6ab8684090d67d1365465af61c74e37956b086e539ed500501e0e20. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/KRF452300402.
Blink Gone (VIVINOS - ALNST Original Soundtrack Part.8)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf34b5f019ba60f33d23d8f2b12ff637d9745cadfb6513361c2d649f6993f1df. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/KSB022427897.