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 0x9134be2cf8e487a05a281b311947edfa712792c2f0aeb3fe47401211694ad71d. 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/773ef806-d4f2-4c03-88e9-d00e30ef86f3.json and https://artists.proofprofile.net/proofs/artist/773ef806-d4f2-4c03-88e9-d00e30ef86f3.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 0xcc26086aeacba3b6f9c09bee2059abb189c3d22fc122d88111a81d8c5bd1a437. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/DEZ650519540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4966a71fc8ccb0fdc392c22adafdc70636c3dd53ba15bb83a7ef9d0f0502dde8. 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/DEZ650519544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd44ba5c7cf0f9a95864cd93b1adb21921c9d98b643548686123306542e9c5a2e. 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/DEZ650519545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cc1363144bc335644f2783fa964e1e204033884e3bd57b34594767199e1064f. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/DEZ650519558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbd6c34e69d8fb271d0026a9d7d81d8bfa05367e521e68df753ee2c60a43bb6b. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/DEDG90601001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28ba2c6f9e557201ad32dcd3d2b1e1bcbd216146f94375317cd59cd0f7a1ea98. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/DEDG90601006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc79dfc8dee03f864855d691b4387c096ce291b7066ddcfb68c54a95d7dfb085. 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/DEZ650802931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b9582abedb621da8e39eac247b9109e314b8fef71fffc10bf1a72674504fd3c. 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/DEZ650802937.
Normalböse / Zum Lügen ist es längst zu spät
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84857f9ab5eb0eaf4484b1d33478b4944ded71c068794464c3ca692d049eb5b7. 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/DEDE31514702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83f9e50b9ad42f74a7229112b5d7d2d47cfeb0fd74d3a8443033e6cbded16a47. Chain 2 (Bitcoin): anchored in block 958822 (2026-07-20T04:30:07Z), 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/DEDE31514713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc739d99ae2c0e48b2b0ce0024a0d2143950e07d654cf07a45cc009df75d82e2f. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/DEDE31514701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30d24668603c984c0066caf2fcc4e1dc482b7da5f4106dd02600cc8eec2b5384. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/DEDE31514705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58f17e189923c506e863223ad1c16b8c62cb3dbc79939c72f6cb0d4c16048cc9. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/DEDE31514711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80e6634fa0f2d57a813709fb84476552d0b9095152537f386eeb8a5541b2e74a. Chain 2 (Bitcoin): anchored in block 958397 (2026-07-17T10:29:45Z), 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/DEDE31514712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fd1f7471a6421ed993624c23bc96213bf50395d9d6fbdc8e55eb6c646348995. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/DEE021300100.