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 0xb54eaa96cc7ea3efb95f8dbd158fc446d86c5c66aa87e091ec4595e218411e59. Chain 2 (Bitcoin): anchored in block 953641 (2026-06-14T13:54:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3b325a44-0304-446e-b6bc-6b205be8e8f0.json and https://artists.proofprofile.net/proofs/artist/3b325a44-0304-446e-b6bc-6b205be8e8f0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0x87891e49df2fc7d608d38c6e19feed33ed18c34bd4e86d24d5fe7428db722741. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/QZPLS2517080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddae3557895b5038009630d905cfc350ef80da2468266742f886e1ed4b6fee1a. Chain 2 (Bitcoin): anchored in block 957776 (2026-07-13T00:05:10Z), 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/QZRP52574638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a530052afabea32288c02ae717cc9adeabb30e194b4ede9f9ab0146c2f6a357. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZTAU2553251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83ce09cea740533e79ebe8d9f3c834889bd42e2653bc31cdd5d1b144754dc1b1. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/QZTB92507267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa23c5c8ae06c5497fdb82905f29a9ff4b2d6529a3b8802a1ba3c261a13482d38. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZWFF2560264.
OMNES IN UNO ~ Omnilovania (Instrumental)
OMNES IN UNO ~ Omnilovania - Instrumental
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0eaf29451135deed19a70eb86dee4775c9ab42ec38483806b7c3c041e543b879. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZZ7L2545442.
Tears in the Rain (Undertale: Neutral Route)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01af5c5434ebbca4d6b993983de732fad6b846fda7e40d4f2e61f7a24df9d889. Chain 2 (Bitcoin): anchored in block 957788 (2026-07-13T02:37:37Z), 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/QZZ7U2505848.
CALL OF THE VOID (Undertale: Call of the Void)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x308be593df0be17dfa629350a317333e1e971040155c7a807f63e70613152f20. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZZ7X2569377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddf26b535c59e4d79dc3ecf1296d03e7691059ca3a5b2183e28c93b5c75bdb63. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T18:54:07Z), 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/QT3EZ2508627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedb59bf66d59bb9645440488764d7e9f6e952b363e18f523f0a532742045f567. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), 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/QT3FD2558385.