Tony Cedras ( – 29 January 2024) was a South African accordion, harmonium, keyboard and guitar player. He was born in Elsie's River, Cape Province, Union of South Africa in circa 1952. He performed or
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 0xaab0c7c16a633a246184f6e0492f85dc96e3f80f84ec1450293010efa5a8a64f. Chain 2 (Bitcoin): anchored in block 953867 (2026-06-16T01:09:47Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/05f78cd1-0c0b-48df-b83d-f46520da4fc0.json and https://artists.proofprofile.net/proofs/artist/05f78cd1-0c0b-48df-b83d-f46520da4fc0.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
//Hui !Gaeb (Where the Clouds Gather) [Single Version]
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 0xe2b72c94383b03a86d87d871c555006f547fd4597a8e7ac9824c0c1f0a4c943d. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM81207844 — a six-check JSON result.
Sunday Morning (feat. Aaron Heick, Vincent Othieno, Fred Doumbe, Morris Goldberg & Tony Cedras)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6bdb83ffd3066b71b7fb2bff2a01831324de458fc958c2083556bb51a1c015e. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM81207845 — a six-check JSON result.
First Love (feat. Fred Doumbe, Aaron Heick, Vincent Othieno & Tony Cedras)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a56c7369de34771bfcc31bfec271bbf5abee8f05ee180528e2f6bef2cbd5c10. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM81207846 — a six-check JSON result.
Empty Nest (feat. David Cullen, Fred Doumbe, Tony Cedras & Jay Ashby)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e620e835fb7c301444823331f6d68baa76691bf8ae03bba1a0e162d18462fdb. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM81207848 — a six-check JSON result.
Wise Man's Story (feat. Jeff Haynes, Tony Cedras & Jay Ashby)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5315ff49ad884664ab8fb5b0c175d81a82f6bae052d5c433ed965d791965226b. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM81207849 — a six-check JSON result.
On Your Own (feat. Fred Doumbe & Tony Cedras)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x468d36ee38593c8a1a50f943e3a54cf747919e19eaa360f392d1d162ccab3969. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM81207850 — a six-check JSON result.
Infatuated (feat. Tony Cedras, Fred Doumbe & Elizabeth Simkin)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48c02fc81c386b868ed20d841fae0ae69451d6c04dffa7927250614ef8a4cb39. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM81207851 — a six-check JSON result.
Endless Road (feat. David Cullen, Fred Doumbe & Tony Cedras)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea6fe62171cedb193d5c7e42ae1c2fb8871379b28b1911949ede978668dbcd15. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM81207852 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c34b76360a24e0f2ef9e9e26ffbc256d72dd46d9cb2eb6a26131d6da44d385b. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM81207853 — a six-check JSON result.