Dario is a masculine given name, etymologically related to Darius. Given name Dario Allevi (born 1965), Italian politician Dario Amodei (born 1983), American entrepreneur Dario Antiseri (1940–2026),
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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08d4c2e5b4afb8a851cfe23a07a2aebbcec352dcf019da6927b3e19c30367c08. Chain 2 (Bitcoin): anchored in block 954010 (2026-06-16T21:41:36Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/32e93759-504c-4b3b-a4aa-9f018302f206.json and https://artists.proofprofile.net/proofs/artist/32e93759-504c-4b3b-a4aa-9f018302f206.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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98dfba13813c6deb331e3941dd2eaf6b31db8174e129e4abae4182c2e6aadb99. Chain 2 (Bitcoin): anchored in block 960163 (2026-07-29T23:20:38Z), 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/BR46Z1400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f9a23092589eb8fa5a9590bd151f0e9c89d8e3ba5324a31efe171b2c7a6299f. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/BR46Z1400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18dee4ebb7a5717c8017d87e138664b7abc740d816987bbee7d4e41ed2119341. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/BR46Z1400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1683a3d67967ad1204fd5fae9e5e7cafb0330322843970b4b0c408a19e6d4be3. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/BR46Z1400004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29f60d895500c644a814e59eb1510226411dd8896baf1eaf4c61383509134cb8. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/BR46Z1400005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a11a3decaf890a89edf059513b7a3b8e87f4443f83be02e38cc15380eb01847. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/BR46Z1400006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fb3c0d7c24422de5544bcf819bbd643ea9d75359e6c5e68f78817ebe5d4071d. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/BR46Z1400007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7dcffde078fbf572176d3f601e8eb2a6c134bb6e78b86358a7f66e8862272c7. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/BR46Z1400008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdf444245aeb026ee17a7cd0307a6ea5346bc706e8741443bc8bd96a93f1312b. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/BR46Z1400011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x922a10e82fd150a8b1b9e1ef72b21b4da97158662dc3c53409f9a28c7a623203. 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/BR46Z1400013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdad0fc7409c68b00455621c78e39f3fcd6098e8efaef78ce14677827516fddfc. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/BR46Z1400014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e7e4d4bc623121f969b7436749299db06dbea6a6ba283e95535305e3f7aca34. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/BR46Z1400015.