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 0x6686e73d81cd8dae594621663bb9a60b0b55bb849f87d3100d33612b6fe44555. Chain 2 (Bitcoin): anchored in block 953610 (2026-06-14T07:58:09Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/12dacf90-e770-4e69-be8f-63d557d2e21d.json and https://artists.proofprofile.net/proofs/artist/12dacf90-e770-4e69-be8f-63d557d2e21d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Sanctus: Lord of Angel Armies (Extended Version)
Sanctus: Lord of Angel Armies - Extended Version
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 0x4b19897aff4140a1e586852ae0e91d112bbc0b7f374d9c7923170096eff1284d. Chain 2 (Bitcoin): anchored in block 958800 (2026-07-20T00:52:19Z), 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/QZK6M2436723.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad4c7ed5ad72d6b8550ee045a861be9b4190a6e502a79db5839ff8629ff980eb. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T16:24:00Z), 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/QZTAY2470215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0d6fc0bf1f29302d21c524d99cfcea8407e0c7e47ecacac883dea95c3586511. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T07:01:59Z), 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/QZTAY2470223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bf49e5df8bbf8b6da06936ca08ee9b81ec1c0cbd65cb2a02c342e6d65e82d83. 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/QZMEP2560115.
Theotokos: Mother (Orchestral Extreme Metal Version)
Theotokos: Mother - Orchestral Extreme Metal Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31677e52158bfb6da93101654b98012012ec7aa1bdc59f9733127ee5956b4ce4. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZNWZ2548437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5f75f87caba7042f0aa4660dde065b077cb8bf3b5beb3ff28755ff41b3e8bf0. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/QZRP52504507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81a85e4abfa4d8d4fb91be24fa02dea49e9c657a76eab7ac67713f3852aeb019. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZRP52504508.