Junior Murvin (born Murvin Junior Smith, circa 1946David Katz, "Junior Murvin obituary", Theguardian.com, 3 December 2013 – 2 December 2013) was a Jamaican reggae musician. He is best known for the s
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 0x923c05e44785b75ab69791c1555784db476d2a226ef8f95c4af1077f2cad0c72. 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/e0e1faa1-ba66-4c59-b9e5-c87e98c9134d.json and https://artists.proofprofile.net/proofs/artist/e0e1faa1-ba66-4c59-b9e5-c87e98c9134d.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 0x7b96d5eb6b724abb4cc5c1f9862d9f75dee4b7210847428d728ff57d7df254d4. 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/USIR20300260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2081f974532a3016f69f8990a72af7b4e749849df13e24461abe31cf52eb0172. Chain 2 (Bitcoin): anchored in block 959069 (2026-07-21T22:32:59Z), 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/USIR29700006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdf7edc2515b1428f608d441c5431ba818de1b16ebeebe95fa4faf488096eef1. 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/GBAPA7700017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ef7d98bea1bf3ce5bdeecffb37ae388544b86bcbe99f0d9659ac0e8888eadb3. Chain 2 (Bitcoin): anchored in block 958945 (2026-07-21T00:35:28Z), 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/GBAPA7600054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2420125e93ea258b7020ae1d18e3bca34a765fb0d4813eec91d79f62f3a6ddc4. 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/GBUM70908861.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdf7edc2515b1428f608d441c5431ba818de1b16ebeebe95fa4faf488096eef1. 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/GBAPA7700017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b96d5eb6b724abb4cc5c1f9862d9f75dee4b7210847428d728ff57d7df254d4. 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/USIR20300260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14e1c6a6117842e1e2dff8b5733c2ca55d3f9be895c48e9daf9a7d66f1f2952c. 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/USUM70976198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4670cb9420a2e5c7d8f2b6b3540ccc0d4ee88d4221d49b4ac1189bed5edc49c. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T16:16:18Z), 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/USUM70976199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20e847653dfefadb0b6e0608638a2b57d0823591edd8759dcbc330e773c7f0bb. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/USIR20000007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25189093e55a53d90e5c394de82669e077a08bb00914a873c3a17b0aeb64ec48. 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/USIR20000008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9701ae2d16afd2e01434f609708af248ebde4d874b44ee0a5d99ef5b42391a35. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T13:14:05Z), 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/QMBZ91417061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1733cea0ba08ae3b5ee3242426ea0f6945f7c7ed797994cbf2a4345542e8ceb. 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/QMBZ91417063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b2b434ff7ec664b4f29f3404618db86614f0b3849b16013fed2110f6fa66cc1. Chain 2 (Bitcoin): anchored in block 958397 (2026-07-17T10:29:45Z), 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/QMBZ91417067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe768cbbee352ae2be6733095a4d5e26d2e5a4bc20117328bc290f40cf8f90431. Chain 2 (Bitcoin): anchored in block 956430 (2026-07-03T02:22:42Z), 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/GBBZV8402837.
Rescue The Children / Rescue The Children Version
Rescue Jah Children / Instrumental Dub Version
Cool Out Son - Brian Brainstorm Remix - Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc761916d16d0ef6740b9b04d061f8e39e8718033075097098558451d4954032. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/GBFG92000260.
Cool Out Son - Benny Page & Isaac Maya Remix - Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4315a1095968283f8dcfee79a9c4b4b52fbe739eef2f5a97bf422038616a4d9. 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/GBKQU2108192.
Cool Out Son (Benny Page & Isaac Maya Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb62509a6b5d84f1040c47bec40539e2d130cfe076e7d3a6730e2004bd5248631. Chain 2 (Bitcoin): anchored in block 960268 (2026-07-30T14:53:07Z), 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/USIR27600353.
Police and Thieves (feat. Junior Murvin) - Radio Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce2479531d9f9113f6ac37b4096c8be848f1970c894a371f24b4230b2b720f64. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), 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/DES230600124.
Kingston Shuffle: Funky Sounds and Beats from Kingston Jamaica
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95b4410095ee1ccefe059d9a1b39220fb00894c17a853e11aecf96fefd6e8ef3. Chain 2 (Bitcoin): anchored in block 960379 (2026-07-31T09:25:34Z), 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/GBMHG1006815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb62509a6b5d84f1040c47bec40539e2d130cfe076e7d3a6730e2004bd5248631. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/USIR27600353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a68c6034064608aebf8c0e9e192dd68027fa51c5b856f319b2e5dd69331ca8d. 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/USVPR1800178.
Reggae Anthology: Joe Gibbs - Scorchers From The Mighty Two
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2465f1351fd124d5d0fc67813a618be5098127253fdafc21f65d2da515ff5db0. 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/USVPR0814063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd8e678fdce45116c38d25f31b22ccbe314cba678bd3b3467fe6b680da40415c. 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/GBAJE0402021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe18b9294e0d8f19e7f4f15882742fcda0c75e52271a87a15bd99f02dca4bfdf1. 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/GBBZV8604469.
Lee ''Scratch'' Perry & Friends - The Black Ark Years (The Jamaican 7"s)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffed7ce64382ab7f351260a470ec7dd0d130fc20fe3e0b838b9ea2a52142facd. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/GBAJE7900170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16bd445e34e1fdd2be76d21b040a6bce87c88098d1c7f15dce7ec50c4d81559e. 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/GBAJE7600204.
Cool Out Son - Brian Brainstorm Remix - Mixed
Jungle Cakes x Trojan: The Remixes (DJ Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dfda31f971f01efaacf60d4597bfff975c727b6dce088488dc79964bfe5365c. 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/GBFG92100353.
Cool Out Son - Benny Page & Isaac Maya Remix - Mixed
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c3c172e7b672ba15baf69e09b134ec1d40d56e941effb2c5d1946c3baa9a402. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/GBFG92100354.