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 0x3a9ec7afda99d9b8c4b4a4a875aa33986f6439baaa9bedc1b1f4b5c0a453a8a2. Chain 2 (Bitcoin): anchored in block 953827 (2026-06-15T19:59:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ec705301-574d-4a7d-a3e3-30ca08463d20.json and https://artists.proofprofile.net/proofs/artist/ec705301-574d-4a7d-a3e3-30ca08463d20.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Suite en vièle acadienne - Prudent robichaud / Vénus Fournier / Le vieux raduel Saulnier
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 0xa6b8a140e0a908fdf4ba4e7435a5bd84a532d3ceab474ca3e2995b04c4aac211. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/CAARY2300066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4868504fab500b4ac2dc8df0f5431ff9a0df9b3050f30e394e94d5a02cbdece. Chain 2 (Bitcoin): anchored in block 958086 (2026-07-15T02:55:47Z), 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/CAARY2300067.
Suite du Cap Le Moine - La pitchounette-becky's reel / Reel à chalou / Reel à rosa / Mélo la petite flûtiste-melodie's whistle
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb986bfbb6234f941c20a6fbfe78f56abfacec8e07fecde5212f53cee6b3cf457. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/CAARY2300068.
Fille que moi - Deux reel à Firmin Mallet
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf83ec2919db0fc83b5833a4f02b203cddce66a00b3f7ec9af94331c46b164935. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/CAARY2300069.
Suite pour danses assises - Reel à Gustave mclaughlin / Joe crapaud chiasson / Reel à bouche à lisan Hubert / Reel de la discorde / Feux de miramichi
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90f5efe45f1d8132205f6d0c1e75427ea78f7e701769c205cb09e9c5f415fa94. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/CAARY2300072.
Suite à Firmin Mallet - Ripitchoune / Em à Firmin / Dosithé Fournier
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97350b9260a94ac65e9f04b4fde7d83388e686863f863903c028f60d0aa0431c. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:09:40Z), 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/CAARY2300075.