Winston Anthony Morris (1 April 1955 – 20 April 2024), known professionally as Tony Tuff, was a Jamaican conscious roots reggae singer and a member of The African Brothers in the late 1960s and 1970s
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 0xab0bf5b83fa0fffe98e7cb6f15c45099f6ad9efee05113d75d02d4b1b779a9a7. 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/0952fc38-b466-4ef9-95cf-88b5490ff675.json and https://artists.proofprofile.net/proofs/artist/0952fc38-b466-4ef9-95cf-88b5490ff675.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 0x48e9206b4a2dc54150cb724ca1aa1cac9cf5ea3277d351097b5eea81a57fbad7. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/USCHR1397657.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeebf54efa189ef2d9bea0d90d56bfe9b3619b9f4b8969821a5d99c0ed87f5a2b. 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/USCHR1397663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x508c0b654a7158e342f812c7e7b1663ff118b738f48c11fd5ea6fc2b3ce47039. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/US2391051902.
Careless People / Careless People Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x346eb6992fbf87b32afa159c840e0c423fc7a9715cae543247702518161bfaf3. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T18:54:07Z), 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/JMB110900358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1a4db0cca75eff62f43cc5f8f7758d040a39e7ca36bf4770ec3838bf55f4168. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/US2391051901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73f59863bd1ace96caa166e0d60308d10c7d041a8f98c02ad3ca52ea382d581d. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/JPR221300523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b17b7ff41c9c4f73d50795b380c5d870f0b6100ee32836f63a255f2a555c6bb. 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/JMA271803249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x102dec729a092ad0e9076db9ac7c37b6f95e980e2d0a9e6bc29d3e90baf01ef8. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/JMA271803250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51e6b0f08caa7e5a76fbc33fb05ed269adac7085dcbddddaf6aa48e4d1e7f0a3. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/JMA271803253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c2e09f7ea1835420376f6a9fe2762b333f44e2fb9cc5dc4e20791f8edc9b183. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/JMA271803255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7707f242fef68851d35b47d04cf0dce0db3a464787642a581d91ea2833fe285. 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/QM4TW2568671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dd4d6b3569bb0acb7394c3720a9bac7217c6de5088d6c5b637702b4dd2f1ab9. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QM7282567575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccb32802f06a3090dba61090b58af0f9e6e0fb09fb8ffa6bb7062824e04493ea. 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/QM7282567577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49f4ccd95859b4fff35fff0b676019f5f21f58904a5dd752e9cc91212842c3b4. 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/USVPR0107218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f21fbcd34223fc28c52d8628a145dbb9c2094f0e8ff26822dcd33ed03e3c80d. 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/USVPR1900222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe58fd0dd12001fce6d0ad569f128e5d97baaee14be28e1411a4efa4153ee514. 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/QM6N21869452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74e8c4052ad30b3751022919653e8e7cbe6ae44aacb76b648546c02427bcae03. 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/QM6N21869454.
Reggae Anthology: Henry "Junjo" Lawes - Volcano Eruption
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0067d11c21dc3faf49cf5aed275073e6f51554ada6faf796b49465007f12697e. 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/USVPR0916283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08d8e3df40be7b6148bf72e1ef65f2153a46289991ca66aad16809f7f6e28b5b. 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/US4CL0210090.