Dennis Vassell, better known as Dennis Walks, is a Jamaican reggae singer, best known for his work with Harry Mudie in the late 1960s and 1970s. His stage name was given to him by Roy Shirley. Life a
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 0x1ef46f0e6f8b03161f509c768fa186343a45f32f4323931bd01c32873a4bc5df. Chain 2 (Bitcoin): anchored in block 953770 (2026-06-15T09:50:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/98fa9107-f4de-4ab9-92e2-e46c94487292.json and https://artists.proofprofile.net/proofs/artist/98fa9107-f4de-4ab9-92e2-e46c94487292.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Reggae Originals: Delroy Wilson, Dennis Walks & Martin Riley
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 0xf9453c740bbb31628ce8fa1b32b59760798e69b4682506f225cdee6a786fbd5d. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GBVVQ1900942.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5aef1bec31f68f57c9e6fb8f01af27f6f8f01be5b2efdd385eedca6ad6c48e91. 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/GBVVQ1900939.
Reggae Anthology: Joe Gibbs - Scorchers From The Mighty Two
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49bdc88bfd4e085868c50ef54d56f55f71a385a8dd155c29efa69973402d9e92. 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/USVPR0814085.
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 0x9cfade0f614416415e79be477c3e7af9619a7887faf33ac1da04b470a7471f11. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/GBVVQ1900941.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e9a002bb0b53100482a9f68e32d7ab190eef49e99468363c2fe9f4053f1bad2. Chain 2 (Bitcoin): anchored in block 960340 (2026-07-31T03:15:04Z), 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/GBVVQ1900940.
Vintage Reggae Love Songs: Continuous Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78dc25fb5fa3e9a019d941a07b3fe046c6e626bbe63359990f3e77d2040ac11a. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), 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/GBVVQ2200246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd041b709c9c5eb4ce04e9179ae4822f143a275792cf394528db875907b6f5c4f. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/JMJ901300034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f77189c18ba115c72de0956ba9016d8189d3a6654bb156cae58e7899f542c7c. 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/JMJ901300042.
Harry Mudie & Friends-Let Me Tell You Boy
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33cb422fc1509e2765c5dd0e3a93c2fdeefce3c68821a311690d3fa3f0b0b730. Chain 2 (Bitcoin): anchored in block 960389 (2026-07-31T10:20:10Z), 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/JMJ901500001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x893abd30a3db5178f2e84137be8d831585a0d012a9abe6bd3cfc09bd16c05d17. Chain 2 (Bitcoin): anchored in block 960435 (2026-07-31T16:33:26Z), 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/GB5KW1800822.