Hassan, Hasan, Hassane, Haasana, Hassaan, Asan, Hassun, Hasun, Hassen, Hasson or Hasani may refer to: People Hassan (given name), Arabic given name and a list of people with that given name Hassan
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 0x510884fd096d181d7cee77c1dc7ffb6c74cda295b8949afdc8b2b5f746048fd6. Chain 2 (Bitcoin): anchored in block 953625 (2026-06-14T11:37:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/24c679a8-b937-468a-b28c-9e9a26394bbf.json and https://artists.proofprofile.net/proofs/artist/24c679a8-b937-468a-b28c-9e9a26394bbf.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 0x53676a7e1aabddcaa51ee54770e1bb7203fd5f5e1989d48870bf4d747f7d2bf2. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/SELFA9708010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbfbcffb0197120f8043f85dfb3d90e5f677f6f4d08dc0d467f20382b5965b8b. 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/SELFA9708020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab6d4995940e24761f8947db565bd929bd6a1a40610879c26ec29d4ee8ed731a. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/SELFA9708030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1478a074cf13c00ed77380ab28f84865d5b744523ffde1f7459aff900a5c1b8c. Chain 2 (Bitcoin): anchored in block 958493 (2026-07-18T04:34:53Z), 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/SELFA9708040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a81067044922dcf06c94799e3fee4b88b6550d0f357e62ad0da06a5d745e26a. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/SELFA9708050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa41f53b6b8594a3824ab02cca001a55c2bae2ff805d12bcbc457dd8e229e5c7c. 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/SELFA9708060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb01e4d98cf5daa6f454176559e0eea6a38353fa3896fb515ff35144a82ff3e48. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T13:08:28Z), 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/SELFA9708070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba6d0d2f490f8ae8eb49e1df982588e8ff58d2e274790443ef89d628cf884ee6. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/SELFA9708090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfabd7b86e096bb5fb95d231ec51e1a1fc7ac53e82735b25fcb7fbeb36e96255c. Chain 2 (Bitcoin): anchored in block 958495 (2026-07-18T04:39:02Z), 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/SELFA9708100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x611b862c840604dd6a18af3d3e31b632c5e2e9dfd9ea3367dc1d6d7caa1afb48. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T03:51:55Z), 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/SELFA9708110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56ddd64e7acec8921b2cdfbde308a390f809ec3c6c01319d3bf85d76fb6dafdb. 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/SELFA9708150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd960781e6bedf54752c4ed60ce4200e9631eac025586a1ad12f65d79b573e9f6. 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/SELFA9708200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f035699835f72300b7ecdf21127204027f8aaa0a744d259fc15e0216c4221c9. 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/SELFA9708240.