Quincy may refer to: People Quincy (name), including a list of people with the name Quincy Quincy political family, including members of the family Places and jurisdictions France Quincy, Cher, a
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 0x806ec34b6e18fe1d97ab3a3a6108b28f1a6cd1f15a85cd6431700e884f196884. 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/9c1847e5-5fcc-4ac4-b091-bcffc56b4b45.json and https://artists.proofprofile.net/proofs/artist/9c1847e5-5fcc-4ac4-b091-bcffc56b4b45.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 0x564bf10f97fee55aeb42a41618f794dd9e1a0e4ab299831e22dc99f7ed26ff68. 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/QM6MZ1756304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2862a4cfb5acc92e4889eb8ecd6dcad4cc72ece0ba9cf9e69b6288f6121bdba6. Chain 2 (Bitcoin): anchored in block 958529 (2026-07-18T09:21:41Z), 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/QM6MZ1762437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7b5ce055fe31dee96874186254715371378648a2f1b8717c292782c1b0c7e69. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QM6MZ1767155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61d0f4918b7872a3958c27772d38e950526342eabf8ee11183afcf23e40ba6f4. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/QM6MZ1767092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c888aaafb2896a9d2d5f53d8eb74982b87718d840f1c9b4e80f90a7de9a8c22. 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/QM4TX1879437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ce38f19b60a7521c085a752a55478cd7859ed661cd02cdbf50bfa7ca29c272c. 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/TCAFJ2177015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5557b10ddbde1f6a680b08fea6a99941ba162534e3cc528591e05aea1055f5f0. 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/TCAFJ2177023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11c10f487a74b9509666b9b93f93eeb048b727de02e2152c9807c584b367b149. 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/TCAFS2193790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34c8a0113635efd33cfa22d5cae87762ae107dde14d3e503ffc4eba757cfb2a9. 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/TCAFS2193835.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ba641977414df17712cd5b7af2b67e58bffee6e695b4bb02d719df40b433ba8. Chain 2 (Bitcoin): anchored in block 960106 (2026-07-29T12:41:21Z), 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/GBCFB1002228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x392df72b92c81612ee5cec3f16dd401a1652a013224f1288f10d3217fa51b4d9. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USHM90611719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88d7a55fda472e701c676c22340c6113bcfb896d4ef09e5812f2c5ceee242ff9. 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/USHM80687983.
Bonus: Player (feat. Lil' Flex & Quincy)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ad3ea43aa53765c48a8022ae7b70aa752b0768a6175f80ddc87f7b408f6757f. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/USXQS1407403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd498cdb0f0fc523d3a74c60cb80eaf31833b7412c1091cc747357a47891d30a2. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USXQS1303345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe43036c7537f58eb97201d8a3d480a8655fe6b97c17804beba7b2074bd7aaa9. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USXQS1303353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1400362f5d5555d8921870517eb830e1c2242ce7033d48b6c679a84bcb3950d. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T16:43:41Z), 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/GBCFB0001820.