Ville is a French word meaning "city" or "town", but its meaning in the Middle Ages was "farm" (from Gallo-Romance VILLA < Latin villa rustica) and then "village". The derivative suffix -ville is comm
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 0xeee41ebe90c8c345135664ffe531a89a4e1c3b5df9b41e385870ed97860018eb. 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/01a960ec-8ca0-44a2-aa9c-5b9ca7f708a3.json and https://artists.proofprofile.net/proofs/artist/01a960ec-8ca0-44a2-aa9c-5b9ca7f708a3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0x7e5f79d0a323d0fb3a38a0ce5b0cea5e997c86b40bbe85e1c84f42bfff7a713c. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/TCAGK2256188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabc48a401b494da0c826019cb82a8ccee4fed501f7e7487814c6e07b80454f6b. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/TCAGO2269195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28d51a34e2c34d963fd1481df49bf92a88779490683b5b1a6bcf5408427d0326. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/TCAIE2492276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c9842e95db529ffeba8f049cfc00378f06d9fbe5b51566445260bb235509cf2. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/TCAIE2492294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb737d072710ec641e8ba6d2fbaa75ffa05354dba99c71285a7a97fdb69ea327d. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/TCAHP2348250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5233b6f5cb30fecc7ac9182cc7e1e78aafc41d18b756da68a2caf500502dad59. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/TCAIE2492364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dadc54e8935ac2fb3324743d6f146cfab98479b1f495c018c74a670de69d75e. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/TCAIP2435781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4580f3b2e35f7c34f25309d78eb62038503ecfdaf550ffbd6b3592cbf5e4191b. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/TCAJI2506808.