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 0xed08052608ec32d37b16f3ce1a57dde7579ad45ccc7cb3212ddae0069e02b3c3. 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/4cfeff04-12cb-4a6d-9d69-2d4680b9efc2.json and https://artists.proofprofile.net/proofs/artist/4cfeff04-12cb-4a6d-9d69-2d4680b9efc2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Ancient Dreams (Original Game Soundtrack)
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 0x47a5c08fc8c2ac754d2a36022d966af9ff2c480fc0fb9999fc73b9a656b05286. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/GX3HH2290134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf4993b5bfb1f5ae700ded8a4d4e64e4c0c802a664a52a5b3d49490364c43a23. Chain 2 (Bitcoin): anchored in block 958828 (2026-07-20T07:54:16Z), 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/GX3HH2290138.
Spring Sonata (Original Game Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6170f975e855a13fc33401fd75e946c9b69605be624b772e19e2235d9bc756c3. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T23:50:34Z), 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/GX4R52255450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92f8dbb350d4631a93c41ab8a9a0992a9432cc0ea309beb60ac016019b5367f8. Chain 2 (Bitcoin): anchored in block 958918 (2026-07-20T20:20:26Z), 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/GX4R52255453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7b186c04eaa54a97f0bc9bd88835cc4a88893ea46ea63ff1b0b02bc4961f500. 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/GX5MX2255110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f4002ac63a9389cf47c8c559339ab8204979bbc19d03b06c5df2568c906ffee. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/GX5MX2255118.
The Perfect Storm (Original Game Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b2ee49ff2ff0b7435c3d6728fdc3b88a7f2ba52b5f6c079ff816319cc3f0418. Chain 2 (Bitcoin): anchored in block 958734 (2026-07-19T12:54:58Z), 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/GX5MY2288515.
Whispers of the Rain (Original Game Soundtrack)
Eternal Light (Original Game Soundtrack)
The Apothecary (Original Game Soundtrack)