Peter Eardley Sarstedt (10 December 1941 – 8 January 2017) was a British singer-songwriter and instrumentalist. He was the brother of singers Eden Kane, a teenage pop idol, and Clive Sarstedt, with bo
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 0xac43d86ca8b4f526de9ae5c6fd4f0e3356bb6a710fe1569df9c5cac4c8b99443. 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/48119c6c-b5cf-4393-ac79-a777681d0d34.json and https://artists.proofprofile.net/proofs/artist/48119c6c-b5cf-4393-ac79-a777681d0d34.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35897d177668feec0a79ab75ceae6f612dc93f2b98e8baa46d4cecfe3244ed6c. 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/GBAYE6900372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7087f94aa5411e71a9f03396ca7e0560f95f76f716404ac86d1a8fccf2b80040. 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/GBHMX1648305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x387507d3518047fdb0f50f2c731456f621cb9d9a66b78a78f8ce00cc544f14cf. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/GBHMX1648309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2305521f6f358c18e4e478704e3456fb1a777bcf8277588ded5dbcaec8e762f. Chain 2 (Bitcoin): anchored in block 958827 (2026-07-20T07:54:34Z), 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/GBLKJ0800003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb85ae89b68f04c4f67bbbdebe522d49ec27a0f0322d665f60b508d0e02270ac6. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/GBLKJ0800008.
The Definitive Peter Sarstedt Collection
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7eca52370124d622510e2bf04a83b58f58d00d4514219f65cabed2c476fe24f2. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/GBAYE7100303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35897d177668feec0a79ab75ceae6f612dc93f2b98e8baa46d4cecfe3244ed6c. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/GBAYE6900372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef10edf9816c06dd6f3a21607dd84ca227f5d4d86da3c92812c0789ed8f4fda0. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/GBAYE7100302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f02faf97037d1c4fd5e459d1ad2527b951b7efbb34206f27866042f8fc97902. Chain 2 (Bitcoin): anchored in block 958397 (2026-07-17T10:29:45Z), 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/GBAYE6900367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35897d177668feec0a79ab75ceae6f612dc93f2b98e8baa46d4cecfe3244ed6c. 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/GBAYE6900372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04310baedb41db5929252dc9ad4433fed92a1d58bc254406e91dc54bb8450490. Chain 2 (Bitcoin): anchored in block 958870 (2026-07-20T13:52:05Z), 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/GBAYE6900374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x816f263ed31627080b2a5d8b14c5dca2a7b7510d14ca05ba3358af3f145e058d. 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/GBAYE6900097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x816f263ed31627080b2a5d8b14c5dca2a7b7510d14ca05ba3358af3f145e058d. 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/GBAYE6900097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x816f263ed31627080b2a5d8b14c5dca2a7b7510d14ca05ba3358af3f145e058d. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/GBAYE6900097.
100 Greatest 60s: Golden Oldies From The Sixties
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x816f263ed31627080b2a5d8b14c5dca2a7b7510d14ca05ba3358af3f145e058d. 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/GBAYE6900097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x816f263ed31627080b2a5d8b14c5dca2a7b7510d14ca05ba3358af3f145e058d. 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/GBAYE6900097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x816f263ed31627080b2a5d8b14c5dca2a7b7510d14ca05ba3358af3f145e058d. 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/GBAYE6900097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72eb415511f3bfec035cedbea8e5557ea452a52e3ceecfca549aa2362644f925. Chain 2 (Bitcoin): anchored in block 960355 (2026-07-31T05:49:18Z), 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/GBAYE6900365.
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
Many Coloured Semi Precious Plastic Easter Eggs
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4d4592123bef96f99ad62b8667cd9d409c0acf01f9550587f738190d38e9268. Chain 2 (Bitcoin): anchored in block 960422 (2026-07-31T15:27:29Z), 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/GBAYE6900369.