Barni is a comune (municipality) in the Province of Como in the Lombardy region of Italy. It is located around north of Milan and about northeast of Como. Barni borders the following municipalities
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 0x144054128b467fb27c2dd80ba5cf7432264e9a3695e08e9eeafd9cc2c4b10e35. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/de58bdf6-e49c-4008-a2c2-3bd915a5dfaa.json and https://artists.proofprofile.net/proofs/artist/de58bdf6-e49c-4008-a2c2-3bd915a5dfaa.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 0x29a52b6dfeee55b06db572c7cb1228366e67567b5b14312456dfd12559e83a1b. 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/GBLPF6790127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e9d6ebf91c00e83dd6a053cb32576165d840b3c5771a50664c046d8186a945c. Chain 2 (Bitcoin): anchored in block 958397 (2026-07-17T10:29:45Z), 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/GBLPF6797093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c60ce502b78d017858471ebaaccb520090afe4a23311f1c1414aae957e4fb25. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/GBLPF2519797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4233a1a42cf15ce1309373432edae088bd473b5de2dc0d9b3f9207a0e88847d. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/GBLPF2525585.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x809cba6f721ee8d97f0a2504c6dd4ac6e0916494d54d4a2deb27bda74008d6fe. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T10:55:55Z), 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/GBLPF2525586.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6be8f80b95c8c31f27102fbd65505e7ca468adfcbf05e955c9575ddfa844378d. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/GBLPF2525587.