Reginald John Berry (1 June 1926 – 16 September 1994), also listed as John James Berry, was an English footballer. Berry joined Manchester United from Birmingham City in 1951. Despite his diminutive s
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 0x6c64f967074533cac1ba2287f959f11641abd8b4f18da9fe57f6ef1435125e93. 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/6c6e66f2-5b0e-4f4e-9815-16335357adc5.json and https://artists.proofprofile.net/proofs/artist/6c6e66f2-5b0e-4f4e-9815-16335357adc5.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 0x9b2c3d1ed251ca8b8b79958692c8f2be511f1f8a555bdb172203c26eb319c61d. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/ESA011969956.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a87e07e4111eebe700ee5018fa8be4e89fde4c32e312d65c45962495fda7281. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/ESA011969959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4210d739d5900d81fdeb781deb8ae5c3251126375c40c782b2fd0fab766680a8. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/ESA011969960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8276be43cc0b0191e958d54d44aab4e8ae19d5928200af9a2a1636faf5455f6c. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/ESA011969961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6210eab3a10692f2c1a883570d758e2569aa28731d95a3f50a810459368e64cd. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/QZNJV2030497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9873928055a6ef001e030505e998aa5f125a7cd5518cbf61263dd65ade802d37. 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/QZ5AB2205732.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x220b2a865a4152191f058466ea34d04e65bb7c663b7897bf672f302f65694e1f. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/QZNW72304282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb788cbba7e8585c6d4155ac9519b15cc8dc8db959b32c48ba3046e7cd4bbb255. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/QZNW72304285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09ee0b91da47b70861cfe978e7bac9beb001ef2caae162ecfc8ecd680659a35c. 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/QZNW72304286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ce0d989fde68f5900484243f2b64662b2c6a870af0b9f139ed0e7a52eeb5b6f. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T21:09:36Z), 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/QZNW72304292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14efd5d6f2647025ea4f8295aa9f0d0522c0c643237200f414c83bc67e461462. 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/QZNWQ2056872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x163ee2ef8fd282b8a33e8a9c4a87b6e265affbdd602873982a6a17133ac1fedd. 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/QZMZ92335105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e5ddf0b4f67fe30e17a83a181b2bfc4b3dd6b83a01e1045efe676bea9c6bcf4. 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/DGA062289838.