William Mark Wainwright (born 15 December 1956),"William Orbit." Contemporary Musicians. Vol. 30. Farmington Hills, MI: Gale, 2000. Retrieved via Biography in Context database, 7 May 2017. Available o
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 0xb20d21e37ae3afc7a7749b90ac26ad3d9f1f7aafa2642b539fb84cc8721f7cd5. 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/5532395f-1bcd-43fc-bc7e-edbd813b368e.json and https://artists.proofprofile.net/proofs/artist/5532395f-1bcd-43fc-bc7e-edbd813b368e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Barber's Adagio for Strings - Ferry Corsten Remix
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 0x74128c438be136641390b6fe8f252214c629ef86a9ad9dceff8038d48af39202. 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/GBAHT9903546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0759edd50b193cbba77f06bcfc8a78601557e8fdd2d92b13445d5d8fc991b408. 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/GBAHT9903305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9631b580095c6572b836f4f81377fcacedebc323956fc7428fe8e5121a3106f. 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/GBUM71705704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e3445b54a0fc2035b5130f165f6a14281f1b5b9118c75e4080d698e3695e001. 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/GBBBA1000230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87846f8dc44bbbb2ac1d7dea0f372ae739004a134e029b2c88824005eeb7da5d. 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/GBARS9600082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81c140aeb77a0307795b59ec2111320d91f9490e205e3f00e55209c7ce3cc6e9. 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/GBAHT9903557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0759edd50b193cbba77f06bcfc8a78601557e8fdd2d92b13445d5d8fc991b408. 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/GBAHT9903305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda48688c84dccdcefe7d48153b7a516fd9f9b6f0578abc7d4515e3293926ff10. 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/GBAYE9701533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ec57ea377f8fb05cebc4183aaa672282e1165bce4fb841a120499f7b5e352f6. 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/GBAYE9700953.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e6df59ad9a5ea8dfa8eafd1d6e949a66244a3bb0a79301a4b54a3d3cc050f61. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/GBAYE9700437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d06c47a2496d23937aab6548ff3c05083b091f5a2fc03967310ae47d889caf2. 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/GBAYE9700958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e9d81ec4b8acb1a6738fc108ce6d3fdc807eb9d46929a1e00485646cc63eda3. 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/USAR10301176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb93abc29603c150319344e1651cd1ce55c8d83e497ff3e6569af2a1a5921c38d. 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/GBEWA2205880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95b01ed93d7c2089e8208b2c712afb14c0bafd3bf5634ca798624f60cf94c02c. 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/GBEWA2205881.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ff9668cc6e59f528f6ad39b50d7f83aeab4a4bbe9c683834cbd9745b00f306a. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/GBEWA2106020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9d5c9dced34d75a8d18a25abf8a5536414e0aacfbc6ed95edfaabe7f213835b. 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/GBEWA2106021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06311f1f36832813eb0d3e2bbf877ad756bd6483b8e375140b3f76da1dc1f221. 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/CAN110100173.