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 0x1420cc866304893b9551e956574a0bc2d626c5cc5c8534ea5efe89914f8b76bb. 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/14924a9b-c20d-4ce5-92bf-a6394e2bfc46.json and https://artists.proofprofile.net/proofs/artist/14924a9b-c20d-4ce5-92bf-a6394e2bfc46.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Learn French for Beginners: Greetings and Introductions (Lesson 1)
Learn French for Beginners: The Weather and the Days of the Week (Lesson 2)
Learn French for Beginners While Sleeping with Relaxing Ocean Sounds: Greetings and Introductions (Lesson 1)
Learn French for Beginners While Sleeping with Relaxing Ocean Sounds: Weather and Days (Lesson 2)
Learn French for Beginners While Sleeping with Relaxing Ocean Sounds: Time and Numbers (Lesson 3)
Learn French for Beginners While Sleeping with Relaxing Ocean Sounds: Smalltalk and Numbers (Lesson 4)
Learn French Stories While Sleeping: The Extraordinary Adventures of Arsene Lupin, Episode 1 (Gentleman Burglar by Maurice Leblanc)
Learn French Stories While Sleeping: The Extraordinary Adventures of Arsene Lupin, Episode 2 (Gentleman Burglar by Maurice Leblanc)
Learn French Stories While Sleeping: The Extraordinary Adventures of Arsene Lupin, Episode 3 (Gentleman Burglar by Maurice Leblanc)
Learn French Stories While Sleeping: The Extraordinary Adventures of Arsene Lupin, Episode 4 (Gentleman Burglar by Maurice Leblanc)
Learn French Stories While Sleeping: The Extraordinary Adventures of Arsene Lupin, Episode 5 (Gentleman Burglar by Maurice Leblanc)
Learn French Stories While Sleeping: The Extraordinary Adventures of Arsene Lupin, Episode 6 (Gentleman Burglar by Maurice Leblanc)
Learn French Stories While Sleeping: The Extraordinary Adventures of Arsene Lupin, Episode 7 (Gentleman Burglar by Maurice Leblanc)
Learn French Stories While Sleeping: The Extraordinary Adventures of Arsene Lupin, Episode 8 (Gentleman Burglar by Maurice Leblanc)
Learn French Stories While Sleeping: The Extraordinary Adventures of Arsene Lupin, Episode 9 (Gentleman Burglar by Maurice Leblanc)
Learn French for Beginners While Sleeping with Relaxing Rain Sounds: Greetings and Introductions (Lesson 1)
Learn French for Beginners While Sleeping with Relaxing Rain Sounds: Greetings and Introductions, Pt. 1
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 0x2af1c1cab3bcbfcc231f51858a91b215470682467956ae59308d445a3b0b016d. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T05:44:29Z), 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/USCGJ2433614.
Learn French for Beginners While Sleeping with Relaxing Rain Sounds: Weather and Days (Lesson 2)
Learn French for Beginners While Sleeping with Relaxing Rain Sounds: Time and Numbers (Lesson 3)
Learn French for Beginners While Sleeping with Relaxing Rain Sounds: Smalltalk and Numbers (Lesson 4)
Perfect Rain (Study, Focus, Sleep and Stress Relief)