William Larry Stewart II (March 24, 1937 – January 17, 1970) was an American R&B singer and pianist popular during the 1960s. Career Stewart was 12 when he began singing with his younger brothers Joh
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 0xda5a20a43a1dd2080a9acffae1c95a31a0fd88fa69ecc38fbdb5633b85ebf64a. 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/ce74af80-c8a0-4c3a-8468-58ede748774b.json and https://artists.proofprofile.net/proofs/artist/ce74af80-c8a0-4c3a-8468-58ede748774b.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 0x7472223eae51d679b7cd3961f84eaaf497d33b62736c0b0411008191e3089519. 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/USUM71501756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86dfd6e2e692af285104fb62685db7abac22d916af3878f2bbe08f89ee534468. 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/USMC16312870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaa26a685ab2c0669ea5685be2c1eb9d934eafb7e4e564ff6fd44234c405331d. 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/USMC16051543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2909ed93f90c9078721be94ffc0e00f0f228b2f5f8f9adf631348652e7c9602f. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/USUM71501944.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2bbd28fe0a9bb81254609843ad292191cae1258a526b78987054602bc07016c. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/USMC16413619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x448eec5951e73670d35c2a11de10bba1d9e160848922d85463024789598d4478. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T21:07:00Z), 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/USUM71113377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf563fc68cf5696427bf3f849badace6a1b88781e075acb31487696123694ecf0. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/USMC16514256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc32eb6f1660207f2a6080b0e377d67a5480e76e3e13c380269e216a41c15da6. Chain 2 (Bitcoin): anchored in block 959052 (2026-07-21T19:50:27Z), 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/USMC16514320.
Billy Stewart Teaches Old Standards New Tricks
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cced6aaa7aa4af59619ad69875cffe8f06f1ba8ad5981abf652c1781a2d5fa8. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T21:21:38Z), 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/USMC16615136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82a5bfc92df7da1c1fd80ea473e50854430fea529f6d4614851d8ce6c3af3666. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/USMC16851548.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23029c2b742569943be368730804748dd3cd2df45721e81069e90233c8f8eae5. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/USMC16751546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3ef402a862b39eec0efc774341570fe7b30870e5a09f9facd3792868bb7b180. 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/USUM71113829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fecf4a02dd4b9d754229e0033ea0737e3c4e8845d0cbb24b99740781389e528. 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/USMC16751547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e59ac9b2f49804ac0549112d5632361aa2c33f4208e6c8e145ff0846ba48e01. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:19:55Z), 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/USMC16715668.
20th Century Masters: The Millennium Collection: Best Of Billy Stewart
Unbelievable + Cross My Heart (2 Albums on 1)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78f3a816bb447a2efa19325a3863dc578917d9c97ec5009d890f35bac66f3b33. Chain 2 (Bitcoin): anchored in block 957919 (2026-07-13T23:58:45Z), 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/ES5831840352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x312b90cf1b7ddb6bd7cd98cf9e0563b73477b32f5f5e355ef083ab7964ebb330. 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/ES5831840366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb79c423bfd48a9e41fb495ac7b977ee5967793ebd88a028adf5b2f274a39d605. 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/ES5831840368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8423bc1fba7d8cda4f0b96b477ab8ecea105d44f921173acd8490e94c0c35df0. Chain 2 (Bitcoin): anchored in block 958579 (2026-07-18T16:26:17Z), 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/ES5831840389.
Essential Classics, Vol. 786: Billy Stewart
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11a472da720d065b69c7191be248885b869194293886e2fcdfbee60d9094545c. 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/USMC16451550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11a472da720d065b69c7191be248885b869194293886e2fcdfbee60d9094545c. 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/USMC16451550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc0e0b819a0324ab701ce75a10ccf7e4f7c83a639ffbb8ab5a61a7266820d219. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USMC10500111.
Chess Pieces: The Very Best Of Chess Records
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11a472da720d065b69c7191be248885b869194293886e2fcdfbee60d9094545c. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USMC16451550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4403acfaff984bf3906b3b07ba76246c1677285982f08c5e2ed7fa579ad8add. 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/USMC16619959.
I DO LOVE YOU & END - Live At The Nixon Theatre 1967
Jimmy Bishop On Stage Live At The Nixon Theatre
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83c3bd3c55d3ecb5713db1efa3b6ec2377ed567d1416e3033d09f7554b1b5317. 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/TCJPV2356043.
Out Of Sight: More Sounds From The In Crowd
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc0e0b819a0324ab701ce75a10ccf7e4f7c83a639ffbb8ab5a61a7266820d219. 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/USMC10500111.