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 0x60488a38efb3dd2e949ea17dad3f1f02086e1a583bd4232cc7343afb7569e2bc. Chain 2 (Bitcoin): anchored in block 953704 (2026-06-14T22:58:38Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/78563281-abe1-4d50-bf37-e3a2b854949e.json and https://artists.proofprofile.net/proofs/artist/78563281-abe1-4d50-bf37-e3a2b854949e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
XIII (feat. Elegia Monet & Eugenics Scarlet Divinity)
XIII (feat. エレジア・モネ & Eugenics Scarlet Divinity)
DEATH PENALTY (feat. UYU & Daisuke Taba)
CRIMSON VIOLATOR (feat. Eugenics Scarlet Divinity, KOKOMI & OnilemonJunya)
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 0x7659233357b7a29205d69788c0eee30ef3c76e56a74f32104990c0da609587af. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/TCJPC2419851.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24146a90b9056b9b7c20603bd6064782b5c4cc4a01c79d53bc57d8070bb495d3. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/TCJPC2419863.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49b0cf4d6010961eacd55a0351210373e13c95f633459d73b2dc8e7f9b64cb52. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/TCJPC2419876.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x794833f800fb7462059b4ca6365fea5048d541f65a929df67f15a96dff78bb47. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/TCJPC2419880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cf99c42b2e5750749ab4cad67619cfc9c4e3a3037e211f5b5dc01689bdea641. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/TCJPC2419893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72bed0babc8344e443be4b94ac1e62ba32f3612042bcec626c107c21cc60cf93. Chain 2 (Bitcoin): anchored in block 958666 (2026-07-19T05:00:30Z), 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/TCJPC2419896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14235cc2cd3a3b8cfdb4fd32dcd2584650c6f8f9e9dc80a6ab2f08b204c8c328. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/TCJPC2419899.