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 0x945b209241c49c48c6bcb84885da970a4ce9f62b93e8e563c6c1946325e0b328. Chain 2 (Bitcoin): anchored in block 953812 (2026-06-15T17:06:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f7bed33d-0a6f-4827-a45a-6233ece6eae8.json and https://artists.proofprofile.net/proofs/artist/f7bed33d-0a6f-4827-a45a-6233ece6eae8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Viktorious Vol. I (@Viktorious Original Soundtrack)
Viktorious Vol. II (@Viktorious Original Soundtrack)
Primordial Fairy (@fairygirl Original Soundtrack)
Viktorious Vol. III (@Viktorious Original Soundtrack)
Crystaline City, Vol. 1 (Amethyst-szs Original)
The Hound of the Underground (@Parnellyx Original)
Crystaline City, Vol. 2 (Amethyst-szs Original)
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 0xa98ae0e471180c6e4f2cd9a58716cd4450c9e21d584ea4673e89a5aaeeef4b3f. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QZES92470653.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x005a2cbe5cf81911969ef654238aececdc38ad9faabd586938626b27f0cedcdf. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QZES92470654.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x460e8e8a2d88f138cdf80c8ce7d710700a62c3113e02d82723947a0a292736c7. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-20T21:57:54Z), 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/QZES92470655.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5d4c384fa58e9039dc1e3ad3cf2b47b833a22c0da546be6e15c844c6141d78f. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/QZES92470656.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x557b9f0113a251e8f5b94efe5f19a894e661f8b0d127e2aa80a7031af156b632. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QZHN32402583.
A Dragon's Legend (Vienna VTuber Original)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1362e35f39b141f26741e4b6f8602680d5e8406c44200e29cd8812050a8cf0d. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T20:52:44Z), 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/QZWFJ2470518.