Henry Nelson may refer to: Henry Nelson, 2nd Baron Nelson of Stafford (1917–1995) Henry Nelson, 7th Earl Nelson (1894–1972), British peer Henry C. Nelson (1836–?), American lawyer and politician Henr
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 0x203eb86d9b14b50b9d9919e42fa6695315f84b0df9710498e259f683a446f4a4. 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/011f2006-48c5-420c-bbf2-77470ebdb92d.json and https://artists.proofprofile.net/proofs/artist/011f2006-48c5-420c-bbf2-77470ebdb92d.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 0xbcb400bf96734146079534917201d670fbe637585f84f8df9ec40d3ec1190efe. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QMFME2287711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9340a60c7c2adde9f1fdd1a976a1abd37f7dccb485ae819c74bd7bc4aa3d25b. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QMFME2287714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63c43a7f88a6f0f584c19251961f899bc70696c7e59f23b8dc8f1d1aff4770af. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QMFME2287715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x397cb5eeb3848a5af67a9dedee572ef23a3795067f2f6a525b31772644db0a13. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/QMFME2287718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30562104b8b61241b614e02a47423db2ceb47c8d6ba384cb812404c4cbbde7c9. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QMFME2287719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79aa4d83e7ed5f842f7ac5c57ade8b347087797ab36dbd7492ed8e007b30fc5a. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QMFME2287720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe390eab6ab612c9ec99df3fecb413d811bf024db5f3ac59b9af6a8eab00df360. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QMDA72223927.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdde80db8a9b52f476c299cdedf67049e3fcf012eb61ccf45ef52f16950d745d8. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QMDA72223928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf98a0c93aa8c96d7a8feecf888cb3b2cafa13c1c1b0103802022401d6bf6b26d. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QMDA72223929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb92959df14f8abf08220097d16f35234d122a08422104037f8bf231302c5673a. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QMDA72223931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77b2b9baf5decc64bcd3a8c9e8d8080be8a71f880657a1725e8549d2f5fb4041. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QMDA72223935.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb901de19aea986a1fa52f82351a44e244bf386252011ae873c3e22aac946b3a8. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/QM6P42032452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29b872250fa216882f6d32b994526b6d43a12aa46dfbe391476df9cb16673887. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QM6P42032453.
Cuando Quiero Encontrarte y No Te Encuentro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe0793fdd5ce2c1e390fe4f01dbc703d1610799506a8d806d2ef144f1e7a4b13. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/QM6P42032454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e1a4e6320843097f13d0240b216fb1aee5f668bbcf77b33ccb6607ab672a164. 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/QM6P42032455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc51630afbdaf3ae0eb77b72d0e5217902eb3807ad6becc18aba28548254f2413. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QM6P42032456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda1c9a0e4bf4e82a38897e513c4223f9b7ca09d6e6a11d87eaf220a4b20c468b. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QM6P42032457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bdf529ec24181108621b9c5eae99b1a43a01aeeefec12e13b8ce1d1bda0dfca. Chain 2 (Bitcoin): anchored in block 959146 (2026-07-22T15:41:47Z), 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/QM6P42032458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6353d1a1643bc7d7f5371e6cc9030c6628fc8aa6553e25aee2884ff76ce360e9. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QM6P42032459.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd014acbef87ab58c7d975c5b35a8843486d74a1c475dad7a548890bdcb839978. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/QM6P42032460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7f58382a5f62cc299148322bd2956429a5856ad9209c3dbf4a992fed6846d95. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/QM6P42032461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b8a25c7bcbba8cf9faf8a3c5f6f45fda614f80cef0373d1a0745007cd7ebcd8. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QM6P42032462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf902976d3151a9029ab4787d09f934c14d174aaceedddf087605315b82477c3f. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QM6P42032463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb771287d7477864411f375d30caacaf3ca7abfc37457b6f89fd627460410688a. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QMFME2254075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a2f53b45879b17dc34384eeed0bc1d5c9c196625ba9bbfd57750a3d4fb4216a. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QMFME2254079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf74e4106617ab0e8831b55fc85cb6a3ff89dec28b45d97ea5f5df3aa23feba2. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/QMFME2254082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa06d81fb582b976bb73642316b10b65d1910bad1c348d50e7f3d56cb164f3a3d. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/QMFME2254084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x133848895ce1087816609979d30df7da3abd3334c79b0ea4cac4bb728b45d69d. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QMFME2254085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29d66768e0e16d6e0f7bfa597911f3a77e93371d8a7197457164ab514a63e6a4. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), 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/QMFME2254086.