Tony Matterhorn (born Dufton Lafton Taylor on 13 March 1972) is a dancehall reggae deejay and sound system selector from Kingston, Jamaica. Matterhorn got his start in the sound system arena in the e
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 0x5683179a92e01a649775f8c3791d2381374a245c5920ceb7c68b3628c9239cc5. 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/492fd468-aa87-4345-94e4-a52d6b7a9fba.json and https://artists.proofprofile.net/proofs/artist/492fd468-aa87-4345-94e4-a52d6b7a9fba.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 0xf9beba904138bc200d93724d4b0cf4e539ae2f6def7a3e41a868be93eb02befc. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-02T22:05:07Z), 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/USRXE0800020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ebd45712f9ce6d54305edeff6fd94d084995ce4d035bc21df9dd3582c3d53b2. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/USDXS1500185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e5dc78921360832322463fc4132d8901cc09b97159c5377b882e6c60229e2e7. 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/US92U1902877.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87982ae99f6c51dadc80d008de084f7589a9fe6d6e03472000f2dd4b8c90a0e5. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/USVPR2400414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b3c27faf67ca03e03a87e09a9d3134c0675c221bdfa7c40e1ab86d35dfe476e. Chain 2 (Bitcoin): anchored in block 958644 (2026-07-19T02:21:25Z), 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/CALVP2557386.
The Red Room Intro (Yard Gyal Inna Britain)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde1da41fdaf54d22a3d12d8170e1dd27ba6c57876d5cac771c7ecd1db4b32c56. 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/GBAYE2000923.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa561b0ed8fb127b36965f8bdbdd86c1d8ee8261e882b0bb9002c92cd225fcb35. 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/GBBZV0752494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc744c9162f9043411cd2226dd8b232f199b06d6b371d09bde2339d2e159f7031. Chain 2 (Bitcoin): anchored in block 960354 (2026-07-31T05:48:18Z), 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/USA371356732.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc40f61bedd129370e8e0673257a460314a9c32446c45638a5552188acd28078. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/USVPR0611548.