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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedfbedfa7cf651e89ae1d511e2acc7a26268bc91d61f29656571a1753614eb6d. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fd7ea429-ec05-4edf-bde9-e06cacc1b395.json and https://artists.proofprofile.net/proofs/artist/fd7ea429-ec05-4edf-bde9-e06cacc1b395.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Totenweg [Elbmarsch-Krimi, Teil 1 (Gekürzt)]
Bluthaus [Elbmarsch-Krimi, Teil 2 (Gekürzt)]
Sterbekammer [Elbmarsch-Krimi, Teil 3 (Gekürzt)]
Mordsand [Elbmarsch-Krimi, Teil 4 (Gekürzt)]
Nebelopfer [Elbmarsch-Krimi, Teil 5 (Gekürzt)]
Die Rückkehr der Kraniche (Gekürzte Ausgabe)
Die Rückkehr der Kraniche (Ungekürzte Lesung)
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x116de5bc256a44bcf2a37d6e77a55afe803125468696b19470e9ad14a3a49cc1. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/DEXO42255950.
Düstergrab [Elbmarsch-Krimi, Teil 6 (Gekürzt)]
Das Licht in den Birken (Autorisierte Lesefassung)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf9e99750572a526fa7e7fd6181c312b256365dc6db1898b488baa57e8cc91d4. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/DEXN82442821.