Gary Himelfarb (born 1954), aka Doctor Dread,Nelson, Havelock (1993) "Ice Records caribbean exposure Grows", Billboard, March 13, 1993, retrieved 2010-11-06 is an American reggae producer who founded
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76f45bc133d954f40bdc1d3f8e4a1770dcce80e8664c6ca7f52ceea4f6cc88c7. Chain 2 (Bitcoin): anchored in block 953627 (2026-06-14T11:43:04Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2fb77f66-e2ec-4741-846e-d1d138c4a90b.json and https://artists.proofprofile.net/proofs/artist/2fb77f66-e2ec-4741-846e-d1d138c4a90b.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x926effcd51b211b00b3bcd4fdf4dc081fd3b6a8cb48e7af1c36a611a6c460f9b. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USYMF2033303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x795ae04c416770368307001762cc5f6e364f3e19ceb67af3b47aa6048664a17c. 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/USYMF2033305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f139d202787b7dc21c89cf6f27b95c7b897e25ffbcadc122fd781bde73f32c7. 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/USYMF2033307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfeefff4b84eec6ad14c7b3f4f88823b4a1d5291f90f7aa09769b5dbd18026a6c. 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/USYMF2033309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3c39b7864532d003d3fabcda3fb1389e3991fbf36e2d4a3ab521ff5fddc5b06. 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/USYMF2033310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9196994fdc6b9f365e3c24d4c7fdfd1488552ededec1d7129fde8cc6f3813e31. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USYMF2033315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb96b75bd94cf4740287510cbb28fc487b121fef0740d7da132bcac1821f00a8c. 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/USYMF2033316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbed0e5808d69a10a33ff447d7057fa73c563dc0f3dfa15b8e029904676c151b4. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USYMF2033321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ee32808530824f80fda51e3111bdf4e2c6065a2258557194702a8a7d1b67da2. Chain 2 (Bitcoin): anchored in block 960125 (2026-07-29T15:38:18Z), 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/USYMF2033301.
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 0xfcfea7bede85123cef54bb9f806840e0f2a74fd7a6e01931da6e8550b3a749fb. Chain 2 (Bitcoin): anchored in block 960164 (2026-07-29T23:23:05Z), 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/USYMF2033302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e35562ccdbff506e01bfc4050564753460f79318c7105a49498f89795eb9563. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), 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/USYMF2033304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78ebb21e25fc0a79b15cf56b59e93df4177a49c92fe32ec94ec67fc0702d5a22. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/USYMF2033306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a897946bc3d769e6807afd521a22ad61c0a1a2a26a8f37e71fc6a226f216d8b. Chain 2 (Bitcoin): anchored in block 960276 (2026-07-30T16:01:17Z), 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/USYMF2033308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3af5bbb33549ea272284e972275bcafa64c75f778dd6b89a7a8e008cd6dd25e. Chain 2 (Bitcoin): anchored in block 960296 (2026-07-30T19:11:09Z), 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/USYMF2033311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6d9b4d1814366c2058482e500d18ee222f3695f2681c9e4123ff6e23df1176c. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/USYMF2033312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90eaf1c31d33e64e5060920446c9a6e53c89839722e9e8f9c01ddaf048403281. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/USYMF2033313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21684973ab24b756cff0aa0ceea8757d62edf107e895b34759168945f765af76. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/USYMF2033314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc19f1df0ac7670b0b26c5d96d38fb98a6782b506337b515597712983ea08b17c. Chain 2 (Bitcoin): anchored in block 960212 (2026-07-30T05:43:45Z), 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/USYMF2033317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd46ef705c3713e8064d537aae8bb67eec6ea840406cac1f30a597eb4c15f5af5. Chain 2 (Bitcoin): anchored in block 960212 (2026-07-30T05:43:45Z), 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/USYMF2033319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80c6555c3134178e5c73ff55c2ef89c8e5e01f1857249e17653ea99cf7bc1edf. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/USYMF2033320.