Paul Morand (13 March 1888 – 23 July 1976) was a French author whose short stories and novellas were lauded for their style, wit and descriptive power. His most productive literary period was the inte
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 0x609a54ce20145dd570afce11242e8104582cc572adc6c7a904c3e106ebb7e1d9. Chain 2 (Bitcoin): anchored in block 954569 (2026-06-20T14:36:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b291d2a4-9315-4c92-a7ad-b97ff9be3f4d.json and https://artists.proofprofile.net/proofs/artist/b291d2a4-9315-4c92-a7ad-b97ff9be3f4d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Don Quichotte à Dulcinée: Chanson romanesque
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 0x2c4c3c90f2dd65d97a7b25017d53fda615805aacb8e28111fc28a23d6ee637fb. 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/CALC41200317.
Don Quichotte à Dulcinée: Chanson à boire
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc296326972dc39d16b1e1e241ba79f989d1f5c2b77be4b6b3a32918f3306f83. Chain 2 (Bitcoin): anchored in block 957020 (2026-07-07T09:18:01Z), 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/CALC41200319.
Don Quichotte à Dulcinée, M. 84 (Version for Voice and Piano): No. 1, Chanson romanesque. Moderato
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dfc0abcfcdcb7cac17b91f79a685808f05704e8a27233daaa6631939ee3ef2f. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/GBLLH2587045.
Don Quichotte à Dulcinée, M. 84 (Version for Voice and Piano): No. 2, Chanson épique. Molto moderato
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2ad9f378ee5dae85155d547139a96b678282383ec6560b87f00501d973c3a02. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/GBLLH2587046.
Don Quichotte à Dulcinée: Chanson épique
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14348a60224cdf7abd2f3870d3039178879f3f08f2db250f1e6c308f901ba3fe. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/CALC41200318.
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