Payne may refer to: People Payne (surname) Cecilia Payne, a British-American astronomer Organisations Payne (company) Places United States Payne, Georgia Payne, Ohio Payne County, Oklahoma Payne's
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 0x1829729d17ec400d2361299f568832b3ff3eecef9c7ffbf96323a802ad0c6f20. Chain 2 (Bitcoin): anchored in block 953754 (2026-06-15T06:45:19Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/aece1fa2-af22-41f2-97ae-488996b3e95f.json and https://artists.proofprofile.net/proofs/artist/aece1fa2-af22-41f2-97ae-488996b3e95f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Nagisa Rap Song (Assassination Classroom)|"Venom"
Ash Ketchum Rap Song [Pokemon]|"Journey"|
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 0x3d7c1a6052c41ae21f48439bff6429fa0bc14d319fbde9a22fccd1aec81f2371. Chain 2 (Bitcoin): anchored in block 958816 (2026-07-20T03:51:05Z), 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/QZDA72290286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9508272899d0cc4b57868dfb802d59da2136c2931729b79276c27a4bcacc1dec. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-15T21:23:21Z), 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/QZMEQ2336753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd276797d515a6c4dd6c3829e88eadfaaf0389e29be76cbcd5b4921649a111347. 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/QZWFE2382248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80c64520e996727d5f7668a5f1a2684bf8ee0646976f5c72804da35a7bfe5ea1. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/QZWFN2324131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76f41f6e23fdf9df4d82e557719635d5308d212c4f5d641dc154fef721da87bd. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T00:01:46Z), 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/QZNWZ2503280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5163764cd12fb28d3b0e753c8069d2cf45a894cd240a88809db1dcd784968aa. 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/QT3F22517993.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x835d3a7fd20aaa444aa4be4589e63ab240162b85e07890a3b6474fd30212cb47. 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/QZDA52528316.