Chico () means small, boy or child in the Spanish language. It is also the nickname for Francisco in the Portuguese language (). Chico may refer to: Places Chico, California, a city Chico, Montana
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 0x19ecdfd4269cc9db60985d8672111214f7c9d1d9e1d4593e2f2c5684f17d87e7. 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/24adece4-329c-4390-bdd2-bc220912949a.json and https://artists.proofprofile.net/proofs/artist/24adece4-329c-4390-bdd2-bc220912949a.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 0xdcf881f3e3bb7dc10ea47fb75201c6ccee47f62880f943ed7123e195d753d7c1. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/JPX402300105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a8735e49a7b8e907645b71093125751ea7af2b8df85fd9e4bd776bbda630790. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/JPX402300136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9bb7bd1085d2a2c9b3b72e5ba9e2e44a6e153c35b12eb5a805d12472195f767. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/JPX402400023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0dec42c71b99558525b0fba9489d91add3ee3dad3a4d81eb5f7d536fd6704b2. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/JPX402400072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0dec42c71b99558525b0fba9489d91add3ee3dad3a4d81eb5f7d536fd6704b2. 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/JPX402400072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4391d7d0542475ae2f9ac1482a2fd29010eab4d1a9948063c75142c32fc3225. Chain 2 (Bitcoin): anchored in block 958682 (2026-07-19T06:17:12Z), 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/JPX402400073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x281bbca04693f36da21491bef98faebfdad0f98be3f987ccf49159d7e060492c. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T06:27:23Z), 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/JPX402300122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5def168bbaf97e43e86e5f4147d5f682e34488f6bb5ce5b084f5fc59fb1a7411. Chain 2 (Bitcoin): anchored in block 958945 (2026-07-21T00:35:28Z), 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/JPX402300197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe411375bc3ea5be85293ea7dab26733603bc3cb605f1fd2c8bd3a884ab630fc6. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/JPX402400078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcf881f3e3bb7dc10ea47fb75201c6ccee47f62880f943ed7123e195d753d7c1. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/JPX402300105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x093286da1a9d35488608393e10ff5a2d742cf3e1ef78e99da34441720789db1a. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/JPX402500054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d800b4093e2f9da62c97f5dee758e86d91a8dd2999c0a7fec02668df9f5d7b0. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/JPX402500056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48c1f53b44535e1a25b8234b5a9a9bb057c4250665da065624f7c4d7c644d4f1. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/JPX401500050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22b01054951498031416b7caba9238befa45015e5c52cf925d85e00474601b12. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/JPU902403739.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28adb15b5a6dd88d732a357802ed183fa48528355d9d0bdbc9b7e8a2b4e150ac. 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/JPU902101280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22b01054951498031416b7caba9238befa45015e5c52cf925d85e00474601b12. 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/JPU902403739.