William A. Le Sage (20 January 1927 – 31 October 2001) was a British pianist, vibraphonist, arranger, composer and bandleader.Fordham, John. Obituary, The Guardian, 2 November, 2001 Early life Le Sag
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 0xd92cb993662b7fda33a2077eae61a25bdbc93a9718af241269bcde1f1271a237. Chain 2 (Bitcoin): anchored in block 953701 (2026-06-14T22:16:40Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/76c1bf3c-599a-4c4a-b9c6-cd85bff1cfa7.json and https://artists.proofprofile.net/proofs/artist/76c1bf3c-599a-4c4a-b9c6-cd85bff1cfa7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Kpm 1000 Series: Vibraphone Jazz Quartet
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 0xb534434f65ccaac199cbf4ea3952374f174ab50ccabd3306b20abbb2ac7cb2f1. 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/GBBGL7100181.
Vibes in Counterpoint - Short Version - 30 Second Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb22c47734c7904add7ef59f66a9f97337a706d91e66bd9ef11e0062253d53e05. Chain 2 (Bitcoin): anchored in block 958738 (2026-07-19T16:07:02Z), 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/GBBGL7100182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6176d1881f126d57de60d313505f96e6a288cfe6fb4757a65064e8caa2d5cb45. 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/GBBGL7100184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe09cc78ca41046af7495c07b58727e2026bed226891208142c9e8b83c4d616ec. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T04:46:27Z), 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/GBBGL7100185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99b5a466a37f1d310a7aa3bce9b0134bf4e4249286f7b8a71a2ac1dc81baf0ad. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/GBBGL7100188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cfaaf738944881ae43ba1b6a5783d68c96342223c5309c4161a774879769fc8. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/GBBGL7100189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc945b4fddcc16a44aec0847545a2aee71fd158a90f6488ca1e34883a827a1101. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/GBBGL7100190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b5cc2d949c212aa4f7dd68146e735dc508bd24bed502be008d7765c252023d0. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/GBBGL7100192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c8069ea71ca84ed2391c028f667e36df2aaf205235fa1627418b601e95c7099. Chain 2 (Bitcoin): anchored in block 958126 (2026-07-15T11:02:03Z), 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/GBBGL7100196.