Jonathan Mann may refer to: Jonathan Mann (physician) (1947–1998), former head of the World Health Organization's global AIDS program, who is also the namesake of the WHO Jonathan Mann Award Jonathan
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 0x8de160e73030b875a42b5e772ca6766a4de812f226b762eab69be671c98fba19. 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/3ba41378-82c9-4896-b5b1-7c904cd5e7ae.json and https://artists.proofprofile.net/proofs/artist/3ba41378-82c9-4896-b5b1-7c904cd5e7ae.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 0x21e5bd8a5bc25a81e77ca805fb883467cdea5c588a747b50af36217900321f4f. Chain 2 (Bitcoin): anchored in block 959096 (2026-07-22T03:48:36Z), 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/QZWFK2454332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87982a9ee08931d34aa15ccaa9073154d838849dbb55b9a9353ca2408a5e98d8. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), 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/QZWFL2450220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26561f0db0291ccf46feb5b5618aaa712a33909c8f10f591de0a0ca89ce032d1. Chain 2 (Bitcoin): anchored in block 958830 (2026-07-20T05:30:12Z), 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/QZWFJ2441483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x896fc94fefe50ceff52dcd3a8e1da774e8b70339ad2b8934167ae492059a8043. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T10:57:35Z), 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/QZWFJ2441569.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x072f7a7658f845f9e8f15988847d45e83a7c20443b9bfa97fe65ab3264b30439. Chain 2 (Bitcoin): anchored in block 958508 (2026-07-18T06:27:01Z), 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/QZWFJ2441568.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d46fee2dc74b749b8c66fa66cd496109b781de483a404bd54a84c8c93ea9427. Chain 2 (Bitcoin): anchored in block 957766 (2026-07-12T22:25:04Z), 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/QZWFJ2441574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcf8d4510041ab6d3da2a38872bbf3d57072cb19d2eb4b18626217f683a0b90e. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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/QZWFM2474185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f2d74e84e7c47ed644d7991b9294344ce6c308b3653243b176c92b3b3d379f0. 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/QZZ7S2499876.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa42227247e4be4b736dd799f487d51b7fdc9c6cb6f2e0a58eb9bff1b6c08d7d2. 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/QZFYZ2534816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c13363788f4311c58298b3a3177dd6b5375870ca916ab1d6c998fd2251153cd. 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/QZFYZ2534820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32599dfa7a3820a88bf8c91a50bf9d85593f19e13cf6526e083a934084fb4e6e. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T02:46:47Z), 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/QZES72540520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57ee925ee8b6744be14c371c2e8864b8a00d3e6b942ebca92b8e57defaa1dc21. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T10:05:23Z), 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/QZES72540523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfabd373c9010fef7f13f28b77f137bd96bf4a208f15a722e4192ccf4373a899f. 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/QZES72540524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49154829be093f4f6118c7aec4184c1273ae85206543b42c44b8b239e7492b7f. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/QZES72540531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a06a41cfd81b768cefedb9b2d0092f06278fd9cb72965c14cc4ed425955f00e. 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/QZES62563803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35cc1f4aa33e1fb56ac9c94d84b0c51fc1c69ac77d75b11ba85b77824da14717. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/QZES62563809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d44a6eadd7b64fd9ca20fd19aef92df1543d548101703a3e7ae78381da60efe. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/QZHN72559748.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b27d0584467cba4518fb86f38e3d4209052827f23084c53769fd36af199991c. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/QZHN72559749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba858d0e3b869d98c8b1f0124ea0d5dc1561ee0a8e9829a36a78e51cd71a56fa. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T02:46:47Z), 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/QZHN72559750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99f540fc9f1b252f899d0db88df6c2ae65772513a46eabc2ff06d47ccce292d5. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/QZHN72559752.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd2bb6a4c0cee276dedb6caa95226f2e6267ec8cec7e9fe05772d1f73959a645. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/QZHN72559754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef912c474e641f19e2f13bf673f20c0f791731fbcfb7f3c89c3b888daa2af41d. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/QZHN72559755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd76d303a81c77eae57465ad59a9d3e11fa35b5e9a9526b9db0116695b9f2a11a. 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/QZNWS2551167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8553fb6083ec8191c791e1e2683e13fb0af0e9c5ab1c13b7b121798602605d8c. Chain 2 (Bitcoin): anchored in block 958465 (2026-07-18T00:04:42Z), 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/QZNWS2551168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6986ae531266bf644c51ab75026797deaa4435762a6b5cb27d8586730b2de839. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/QZNWS2551173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x343e138c3ec92f2bd7d3e60ac4b752ba82459fc411beb8ab7c2add9b4783ab1c. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/QZNWW2593940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9855ae47f45f4611823109a10c28934315a8fdb8088147cef82793e06a47145c. 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/QZNWX2530233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86025b9cca683aefbc23e3b89928716b8270e62c69eefd064852918486de68b7. 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/QZNWX2526645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fa3ad70db01b32632cff808fbdd5009f966ce72f35e12f351eb6940c96347a9. Chain 2 (Bitcoin): anchored in block 959084 (2026-07-22T00:50:00Z), 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/QZNWX2526647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71847a46ba69e346f2cdf246c37b19e673918b3e43ddbe1d780e7fba03a3a95e. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/QZNWX2526651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f31382cd49d349f1f356a4522ccc05b2db52d4eb765ad96c093507c1cd94fa6. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/QZNWX2526654.