Paul may refer to: People Paul (given name), a given name, including a list of people Paul (surname), a list of people Paul the Apostle, an apostle who wrote many of the books of the New Testament
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 0x8d2e53719a94f85c68a676e0847cb9065776ec44d0d36b08deb5fe07bc28b349. Chain 2 (Bitcoin): anchored in block 953633 (2026-06-14T12:47:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/32806799-070a-4a79-a873-0890e57742a2.json and https://artists.proofprofile.net/proofs/artist/32806799-070a-4a79-a873-0890e57742a2.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 0x72fcb5d65b4fe523bdc09289bb2e19bc5d866ae0c26d8001be84b4f0ba9dc334. Chain 2 (Bitcoin): anchored in block 958666 (2026-07-19T05:00:30Z), 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/QZZ7T2447840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccc6d0ed04ece0fa6a9f61b7f05641bd98dcfb43a216a452c10a52b17a3b8f6b. Chain 2 (Bitcoin): anchored in block 959054 (2026-07-21T20:19:31Z), 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/QZZ7T2447842.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7310fcc7fa4f4d462158e39a7ea429b7eb2b73ddf23d772089cb2a29b71ace1. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/QZZ7T2447843.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3eb79eca86445ad267ba81413cfeb492f38210b87b5ca3b28909cf49f5cc8af6. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/QZZ7T2447845.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1355f90ef80e4115155f4c4fb801caf23fac4d8c7fd4576150402b1f26a55077. 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/QZZ7T2447846.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e257e3045b31630d00912f410e7c4c060648ba159d66e334222b532889aa6b6. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-16T21:55:37Z), 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/QZHN32562708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13d08579fdc268ad0dad1b86b68afbfd24ef0aead649e860462db28b00b5c876. Chain 2 (Bitcoin): anchored in block 958185 (2026-07-15T18:19:04Z), 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/QZNWV2582270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb322457aa4372d282b8179f4a9fb57201fae471f78711fd2748737b2ce3c42b6. Chain 2 (Bitcoin): anchored in block 957778 (2026-07-13T00:08:48Z), 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/QZNWZ2503363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x327efe5ca9ba1f572fca94c9634e91b771d9122e579b2a9b12f6f13c702ebe0a. Chain 2 (Bitcoin): anchored in block 957774 (2026-07-12T23:51:20Z), 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/QZNWZ2503364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18591c3aa9f3bb450797203f4786a30e3e36992d8edbbc437c9ab91d1cabf04e. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/QZNWZ2503367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36bf4905016dd68ad4dd5f02379059ecc8e87a2c7dc3fa7ec497852799d2f871. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T17:59:52Z), 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/QZNWZ2503369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73bfd7cf0a3cf8aacb49a3d953038a9b2d3aeae909fe4ece1f2473ab1bb619f5. Chain 2 (Bitcoin): anchored in block 957782 (2026-07-13T00:52:48Z), 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/QZNWZ2503370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x927856d22c2b2584e60b9c56f77103df7c939ae65b04a32d5b4c5e4de07b46af. 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/QZNWZ2503371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96025ec06a70b9b6739661765802403be340634f9963c37e62b89bfa72d22ec2. Chain 2 (Bitcoin): anchored in block 957774 (2026-07-12T23:51:20Z), 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/QZNWZ2503373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53716e6ae9c7ce521c65ff48a1c63c8299f53dbc0e6783b31c767c43ebe319a9. 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/QZNWZ2503374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x805f94b3c69471bbe0cb54444223db07853fefa0135c5885356fe1bfbcda86b9. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T09:11:53Z), 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/QZZ7T2588215.