William Howard Ashton (born 19 August 1943), known professionally as Billy J. Kramer, is an English pop singer. With the Dakotas, Kramer was managed by Brian Epstein during the 1960s and scored hits w
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 0x873c3d2ce036e4e0abd871f4c8d1079cc412501638c2aca6dc876a7c526a9965. 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/dd0b2db5-e5cb-40d2-87d2-d4a2b4d05d0b.json and https://artists.proofprofile.net/proofs/artist/dd0b2db5-e5cb-40d2-87d2-d4a2b4d05d0b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Billy J. Kramer - In Concert at Little Darlin's Rock 'n' Roll Palace (Live)
EMI Legends Rock 'n' Roll Seris - The Definitive Collection
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 0x237f207f69c476b79b4cd887b815282847503dcd0d4a02aa51807e81cfc817e7. 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/GBAYE6300035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcde3adad087679bbbf2556fe03f7eced4f06754274f97da5d2d91d8ed0ad8925. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/GBAYE6300036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67b7e85e54a3c9e4a9eaa76f7f3b5652e6c6f0ed862537adaf065b3c0b048655. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/GBAYE6300037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x295aebb6107d0f38539f5e78d2208c08864d659352c7a380b27240c2fde9ba60. 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/GBAYE6400068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e665bb6c4c0d1dea352ad5fbdd0756f206b2e07c02aa0c9e96054adb5d3de5a. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYE6400868.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0aa314f5b43c812a533638ddf0677009fcbe02a11f8388b4782fd5743399a36b. Chain 2 (Bitcoin): anchored in block 958476 (2026-07-18T01:26:56Z), 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/GBAYE0800068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5549ef80ba01f1fff9ae2a8198a00cb600bce7820cd0aa71592036b14298b1ad. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T22:46:17Z), 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/GBAYE6300293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x136eecf0a852a939db2f093bb2e81f915484049267dd70e2f9430ee289929191. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T18:43:47Z), 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/GBAYE6300648.
Under the Boardwalk - Mono; 1998 Remaster
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9fa92d29d5b53bacbd8f0ebced0af8b56171792e11220da5f143f2b220f44e6. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/GBAYE9802475.
Trains and Boats and Planes - Mono; 1998 Remaster
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe564d6ff461437db7525b19a0c50520556b9a9afb6e4269fc34b256d99d114f6. Chain 2 (Bitcoin): anchored in block 958676 (2026-07-19T05:43:13Z), 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/GBAYE9802478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x237f207f69c476b79b4cd887b815282847503dcd0d4a02aa51807e81cfc817e7. Chain 2 (Bitcoin): anchored in block 956396 (2026-07-02T21:01:51Z), 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/GBAYE6300035.
Do You Want To Know A Secret? (The EMI Recordings 1963-1983)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01cd7861b30eb3f12183442b44a24a39780b0dfd2874441066100e0b81401c8e. 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/GBAYE0900017.
Little Children (Performed Live On The Ed Sullivan Show/1964)
Back To Back: Billy J. Kramer & Wayne Fontana
Do You Want to Know a Secret (Rerecorded)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b0b49525673f235b374205c3009aea58820cd0ef52f07fc1ecbdeb60810ff0a. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/GBQRF1019202.
The Best of Billy J. Kramer and The Dakotas
Jealous Guy (Live at Abbey Road Studios, London, 2023)