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 0x0319d76482c09cef42e54ca28891994efb29ada83eb8f09edb0a8df1e6231532. 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/8a4b9ae1-9779-4806-a8d0-e5c3bb888620.json and https://artists.proofprofile.net/proofs/artist/8a4b9ae1-9779-4806-a8d0-e5c3bb888620.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Tänker aldrig ensam (feat. Mick Jäger) - Single
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 0x3392a898b529ad13d85bd1d03a790f21cdc2dfea93778b875078f3e1dfc05335. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/SE3OH1510316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8430bd2a4e5916392a611afb6ed1d7d061c8c4b1db2ce5cc369416ebed7778bd. Chain 2 (Bitcoin): anchored in block 958686 (2026-07-19T06:43:29Z), 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/NLS6R1888496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd88a70c5882f4ac9a0b22449328f55fe18e3c4b44f6bb1b2208d6b5a53a07b71. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T10:05:23Z), 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/NL1AP1948799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf3b999839e9b70a8631a96c51203a17ff252dbca8eec97b8e9bb3e7de0a1376. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/SE6SA2483981.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf39a1c10a76c76370650116688d7e3763af69994181b05143f31a209eeddbce4. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T09:47:57Z), 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/SE5BU2584802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2e89bb3c6c8138d435b8e9751e15540632da777f811db967b8a088d84d1fae8. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE6XY2518353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58a2a7425332b88202cba89ab9fb24ab38f18cc5437c88714283d5e87423e475. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/SE6XY2540529.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a485e5a28645ecaf0d4136d379e995eb57ae447533d84fd0c734a2e1e60e81b. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/SE6XY2557769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf49820c972abf6f8a5ab4bacb7251bfa48081f9fe033ee3de315bd35b2f298e. 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/SE6XY2563566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7597700a5ba5c42231f9ed6319215db8e69671333dbefe5e5799a8f393c4eff2. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/SE6XY2581229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a63e501f0bb7b0362f3f094646df03d3883eb5f4c7b22762f86a872ccbbfab0. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE6XX2509332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f742602bacc9483cb61632b64c35360906e80d15aa711d9aa67f2100b459b61. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE5BU2214904.