Sir Arthur Edward Trevor Benson GCMG (21 December 1907 – 1987) was a British colonial administrator and governor. Early life Benson was born in Johannesburg on 21 December 1907 the son of an Anglican
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 0x8726fc9b9ec501f98d7dd824ee177c87aad6eda583f0107d1df8b8c049c7d4df. 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/b03d91f1-cc2b-4746-bb7c-477c0e7d7b9a.json and https://artists.proofprofile.net/proofs/artist/b03d91f1-cc2b-4746-bb7c-477c0e7d7b9a.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 0xa2de72964171ed6264199a0e6e70d62dccc471ea61bba77a569fc3ed5622c986. 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/SE5Q51805379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c5287ae7166794becb33a814969c83b2c63320768d5e0b479a2ad5acc3c1f53. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/SE5Q51824085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fdfa54d743408beec207a573b0d091a46d8a381f96e80478141dd5da72badd0. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/SE5Q51804152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x860f54f68c1c20fba58244502e81df4af8bf716f41435c6f24ad7151437a6896. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T19:26:13Z), 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/SE5Q51825559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f4137aee7417411a4f4e360e0aa8dbf4dbf1c3d3c37995084e9ee13c6a26f08. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/SE5Q51810002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c09122b153982130109e3e9f73dc1fa9919d3c9b4d94b856a9d658e0d2e061b. Chain 2 (Bitcoin): anchored in block 957717 (2026-07-12T14:54:03Z), 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/SE5Q51814125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfed691a9fea9f05223fcbc86d4ef09465962df26e190f39050fe52288c2ce9da. Chain 2 (Bitcoin): anchored in block 959103 (2026-07-22T05:56:21Z), 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/SE5Q51814719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x996045859ed781720201ca06e3f0456cde738f0769595e13a1d575a831407422. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T20:12:32Z), 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/SE5Q51820755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a7335c56489803b151955b56dc7d8d8f3e331f8d057d8d2e42afc1809978235. 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/SE5Q51806090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7927271774987ae41593e597d2f66a53179f7746a7c723d122156f4cd5aed9e5. 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/SE5Q51821646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa36188f4640b0235eff43f6d3cf1ac8409cc662a9482bf2ced777ac471bb29d6. 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/SE5Q51802140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6965132b2767e5245508bbd2d7c48e33099858604acf9108c87674be51b5b44. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/SE5Q51825046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2da6a629504481f5e59a753c0b4fff3a814bf1f37a52ffa16ee166af63c817d. 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/SE5Q51823831.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b32eeb6e0f3b4f41e894a17adefcab0906b92fe5076e8b7e25619e3984bd2a3. Chain 2 (Bitcoin): anchored in block 958987 (2026-07-21T09:04:56Z), 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/SE5Q51825562.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2043be98467d069fd48cb62a82947e196f4879b876b76544c4c3bafe8c95cdd2. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/SE5Q51818329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc25028c5acd1fb90b2d48098630ef9f2c23b36e01533a934bd0887b2e453c075. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/SE5Q51810680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50dae862ba108af335833f596f8f89a4b6df27a914487d10728e51e06c4a1db8. 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/SE5Q52002408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27d3bd21a69ff3f0df03f1eab7b62962e840fab23ec10b698769fcb6ff3350f9. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/SE5Q52002356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab36154a5f42ddec7e5214261a7d9dc718dc87bc1790245c66da03d19a25ebcb. Chain 2 (Bitcoin): anchored in block 957709 (2026-07-12T13:52:43Z), 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/SE5Q52101203.