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 0xff96845b53df7855cd25fe4daf9c727c72433b1b88ae986bbbccc1d54d15180d. Chain 2 (Bitcoin): anchored in block 954689 (2026-06-21T10:35:31Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e2a29c4a-da04-40a7-9dd7-b29b47a04b47.json and https://artists.proofprofile.net/proofs/artist/e2a29c4a-da04-40a7-9dd7-b29b47a04b47.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
UND DER GEIST GOTTES SCHWEBET AUF DEM WASSER
Könnet Ihr Nicht Eine Stunde Mit Mir Wachen
Lieber Eine Handvoll Ruhe Als Haschen nach Wind
Zu der Zeit wird kein Licht sein, sondern Kälte und Frost
Siehe, die Nacht müsse einsam sein und Jauchzen darin sein
Siehe, ich will Dir spielen auf dem Psalter mit 10 Saiten
Ich Bin Je Und Je Nicht Wohl Beredt Gewesen
Der Tod Kann Nicht Mehr Über Ihn Herrschen
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 0x099da178081d1e53b5a24ccab64625c59ed40ed92cfcbbc02b133c67ebb88f55. 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/QZNWQ2484106.
Die Einsame hat mehr Kinder (28. August 2024)
DIE MIT TRÄNEN SÄEN WERDEN MIT FREUDEN ERNTEN
Maria beweget die Worte der Engel in ihrem Herzen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x400974d321ee70021921bf9d037618dcf6e0b839136c1a2e6af6318a380d9803. 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/QZZ7N2499059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x702178b86bb08726b73523886abf5fc8c6cbb938eefafd30df43655b678fb0e3. Chain 2 (Bitcoin): anchored in block 958322 (2026-07-16T20:44:14Z), 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/QZHNB2562807.