Philip Rushforth (born 1972) is an arranger and classical composer who has served as the Organist and Master of the Choristers at Chester Cathedral since 2009. He has collaborated with David Hill and
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fe6942dde5ac645473dc4dc1a35d3a79934d9699725d4d83ec2855065ed2aca. Chain 2 (Bitcoin): anchored in block 953750 (2026-06-15T06:12:23Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/aa27f1eb-5f15-42af-91b6-7c49530fac7d.json and https://artists.proofprofile.net/proofs/artist/aa27f1eb-5f15-42af-91b6-7c49530fac7d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Organs of Southwell Minster & Chester Cathedral
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x729545675439db2ae0d26648303e8891695d8503707e95dac001b3002aa453bf. 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/GBARU9800805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bb4722f5944ab681c7c2fd0d8793d8fc7b8fc1e271b6eb81ba551f311ea349c. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/GBARU9300327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b2b702911c90097b2d653144316f03d43d1f80c5fab41e59a80d8c7a2549264. 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/GBARU9300002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b2b702911c90097b2d653144316f03d43d1f80c5fab41e59a80d8c7a2549264. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/GBARU9300002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x729545675439db2ae0d26648303e8891695d8503707e95dac001b3002aa453bf. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GBARU9800805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b2b702911c90097b2d653144316f03d43d1f80c5fab41e59a80d8c7a2549264. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/GBARU9300002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b2b702911c90097b2d653144316f03d43d1f80c5fab41e59a80d8c7a2549264. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/GBARU9300002.