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 0x7cf08bd3ab161ef2ee8f23445b8913dae94f56301d23ec3a6590c558c4137108. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e47fef32-5af9-4ce6-8287-650ddaa3a95e.json and https://artists.proofprofile.net/proofs/artist/e47fef32-5af9-4ce6-8287-650ddaa3a95e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Secure Place (From "Resident Evil 2") - Piano
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 0xcf3f96ac7a910c353adfc45fd82b861d8d44cfa6c739bdd35a1d57528659ae00. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/AUGBT2489940.
Unfortunate Event (From "Resident Evil 3: Nemesis") - Piano
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x580a7f762f07aaf4b68678952cc8c937242bb8802dd90fe0636cae8d8b03edf0. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T09:16:54Z), 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/AUGBT2489941.
Reward and Results (From "Resident Evil 3: Nemesis") - Piano
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43fd060f405b7abc5097a2e12309f0b90ea336fb531250dbe7b368b84ae1b8e0. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/AUGBT2489942.
And After That (From "Resident Evil 2") - Piano
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f477be715af0f20991f1286d2f9c8f9d46109a17823ecd5574e02623133b38a. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/AUGBT2489944.
The Second Chopper (From "Resident Evil 3: Nemesis") - Piano
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ae9c68a3d5727a24bce75af21b8a8d59c03d5e97589234dcc0da430a04733c2. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/AUGBT2489945.
First Floor Mansion (From "Resident Evil") - Piano
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5678f75389f8da78c0e4c5286eaff8c5029c915afc5751f608a02f06725b706d. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/AUGBT2489955.
Long Lost Friend (From "Resident Evil") - Piano
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f81d6aeaf15eea844960db7170ba1608bb4f4b266628e4cd0953353fe3f7c56. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T13:08:29Z), 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/AUGBT2489997.