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 0xbc322d9191c45aecf1fdc87034b4756ec871b50c1b4a9169c9f790ea9eb92640. 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/06c09eb7-6d26-4a6f-baea-55d64eac68f5.json and https://artists.proofprofile.net/proofs/artist/06c09eb7-6d26-4a6f-baea-55d64eac68f5.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
She Belongs to No One (feat. Niklas Gabrielsson)
Maria Lang: Crimes of Passion (Original Score)
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 0x6327207124d1e8405eac41e45fa57288cc3fccf63628a2e1fa89b5d20db66dc6. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEWUG1400302 — a six-check JSON result.
Mona Lisa's Eyes (feat. Niklas Gabrielsson)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe35b745497047f1d2cc73edebeb219d3cba6b2a4b8e152f32bec2da8713e9d7f. Chain 2 (Bitcoin): anchored in block 960268 (2026-07-30T14:53:07Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEWUG1400312 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc83daef46a743e1a61a0754c1d9207ec786da4c3fbfd654831e0bac0e8d81ade. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPVI01311050 — a six-check JSON result.
The Galaxy Express 999 (feat. Niklas Gabrielsson) - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f5d3015aa826276f6ff4b7b332fd3091113a54a4b4d29062b88d24bc231653b. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEWUG1400201 — a six-check JSON result.
Stolen Moments (feat. Niklas Gabrielsson) - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3831201d8264b69295438c1c2089b42cc79631a62438bb2d1ead007b5602ed3c. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEWUG1400209 — a six-check JSON result.
Fly Me to the Moon (feat. Niklas Gabrielsson) - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd016f6f0004bfc82de3ff8e9457c9481f0b55c98588b5c14eb832cd5e95a91dd. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEWUG1400212 — a six-check JSON result.