Quinto may refer to: People Quinto (name), list of people with the name Places Quinto (Ponce), a barrio in Puerto Rico Quinto, Aragon, a municipality in the province of Zaragoza, Spain Quinto, Tici
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 0x2ff82ac71aac10b971c80a7632d3bf75e720d32dff9d5932886bc9674ac69d62. Chain 2 (Bitcoin): anchored in block 953772 (2026-06-15T10:33:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c5bc6da8-208f-40b1-89eb-5c0ba6db2663.json and https://artists.proofprofile.net/proofs/artist/c5bc6da8-208f-40b1-89eb-5c0ba6db2663.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 0x1bf4266a6c70761d616d1cf0ee5e6f269decf2ad48acda6cde13d41c0e30e773. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/ES71G2401933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b8af5173fbe7d649ce002b366152b89889b2adf8480cc8d43812bb3a7695c87. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/ES71G2403992.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5ba00ffd0b3ef84b14cec0c5b905f4822a8edf02b27586c7632f3e0a1f3a49f. 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/ES71G2410066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x285a35699939c70d30ca3e4a9bb8970458cf031580c3d1619d93ae55f2485704. 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/ES71G2412172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdccaa78489ff4a8954249e6c48d91db5908813d5e2a2d8d302c4df66d5b36fa3. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/ES71G2413957.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bad091bb3880b6efab48ab60185dbcf85c3cebb30f2b45f2575de6dd474d1b8. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/ES71G2432393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x142aa8851dfc5d65d3e9944c2592cf6d8b1e29ef423bc2b7979f7dcd0a4e570d. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T17:08:17Z), 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/QM6P42545922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf60878492c701d7afbf4aeae846ec47a7d91c13c38759b996c8a411a59f2c8b. Chain 2 (Bitcoin): anchored in block 957785 (2026-07-13T01:55:31Z), 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/QMBZ92565192.