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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3660f4c24d7b6bf9ba4e5b3d036d3e5badbba4634be56909ea9214f22aa7f01b. 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/4ea09cf3-2f71-427b-9d9f-978bc8efa5fa.json and https://artists.proofprofile.net/proofs/artist/4ea09cf3-2f71-427b-9d9f-978bc8efa5fa.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Shinto (Friday Night Funkin: Hypno's Lullaby V2)
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06e9e355694c0847a44fd0ff1f5e245375206495a79d6f81bb38dad5cf33a30a. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QZNWV2306296.
Left Unchecked (Friday Night Funkin': Hypno's Lullaby V2)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb094c92d7b121599ffe619478bf8350dc364a27c4a9b997370ae8b1b0162bff. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QZNWV2318174.
Insomnia (Friday Night Funkin' Hypno's Lullaby V2)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69b50466189832b1530db04680890ace2e6c203ca45953d9234f80c3c84bab2f. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QZNWV2306297.
Friday Night Funkin’: Vs. Sonic.exe - Burning
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97d1b9ad9cc05cef7be45e1fdb103395a2393c78bf3048e129d9af8f6d1b090a. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZNWX2352597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaf5d555f7b00549bb68bba423a932c1766db23e1db0848d40c9d20a35b45336. Chain 2 (Bitcoin): anchored in block 960506 (2026-08-01T03:50:58Z), 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/QZNWX2353641.
Monochrome (Friday Night Funkin': Hypno's Lullaby V1)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7d441815401117a6203eba152045a15cfceadc2d5be2522d65ade5cf5c87201. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZNWV2306299.
Left Unchecked (Friday Night Funkin': Hypno's Lullaby V1)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x206334133366ba23e1b032e3ec394b0e212105fa2c1a778bf8378139e6193493. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QZNWV2318021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbe41cbcf8ee773cb86e499f81fff2ec4fed180bb7d32401ea42595350e948b6. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZNWW2306970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1d0c3231b032d2ca5eca4b773182155bfef6111ec02c7140fa392e95fe57c2a. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QZNWW2401670.