Hon or HON may refer to: People Given name Cho Hŏn (1544–1592), Joseon militia leader Ho Hon (1885–1951), North Korean politician Surname Han (surname) (Chinese: 韩/韓), also romanized Hon L
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 0xf16e9146fb1ee77659fce6beaac4c4c7012c0b33d4da69a75b7eb5068b3a6877. 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/417b9e22-1c82-4b06-b1f2-baba36595808.json and https://artists.proofprofile.net/proofs/artist/417b9e22-1c82-4b06-b1f2-baba36595808.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
ครึ่งหัวใจ (Ost. เงาอาถรรพ์)
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 0x4ed48bc99a33eb7cc3e80e7e1b27ae7ebf90b81f17000d5507bbc3aacd62cd94. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/SEBGA2100007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e8e0b41e4b6000ec9e942b330a2e38c32cfb23ab005828fc758893307efa8c9. 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/SEBGA2100203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21e88d267cba68e0f71c2c366d0dd354f6adc98d36c353bd765eabfcae7bdf58. 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/SEBGA2100307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73bd391d0cf2776e44b7f281d86ddea3bcdd11be4a1db8d37c46c12dd4e08ee4. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/SEBGA2100477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1775cfcdc2d5c523e35a51c364cbd7658c9a0eded5e024f2f610aee6d3e33ee9. 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/SEBGA2200093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e5e90c140f91a71d025a2c77298cf05c4e2704a7cf83d6d1bc37e7a8a5b288b. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/SEBGA2200186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6338c56f40bac58230b9925306634b5907eae86cd0f3b0d41ff3d813ed037b7. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/SEBGA2202946.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f80b6663d31eeb6d3233997051fb728948143676a32ae7a53d3fa36ee031755. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/SEBGA2300377.