John Whitwell (6 September 1811 – 28 November 1880) was an English Liberal Party politician who sat in the House of Commons from 1868 to 1880. Whitwell was the son of Isaac Whitwell of Kendal and his
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 0x1546036a941e52ed8d8542f41127c70e8907a8348d68d37d21d1a9f5ce1b5955. 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/493cc735-55de-47bf-8e6d-d86b73281642.json and https://artists.proofprofile.net/proofs/artist/493cc735-55de-47bf-8e6d-d86b73281642.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Simple Gifts: The Music of Frank Ticheli, Vol. 2
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 0xd2e3602168b3c1eec425516191cde7063fcc9d586e9c8f86ecf360f2a787b025. 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/USA560838690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe620855225c2f0f929557649cf2ce8738d867c7fa9d05d01c9b5ed729f639f46. 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/USA560838691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda01f3f886ca96a05433649d9bee73eb4e524db1f646c33b01e6ed2f53bdf969. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/USA560838692.
Simple Gifts: Four Shaker Songs: No. 1. In Yonder Valley
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x952ab6af377e5926a9a10ada8b1a41fdeda0028d3b4df0409a3ec79f31c12d08. 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/USA560838693.
Simple Gifts: Four Shaker Songs: No. 2. Dance
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f4b27a59513db6ec6ac2b2672ce48e83acd506cab0a5d26b988332d441867ae. 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/USA560838694.
Simple Gifts: Four Shaker Songs: No. 3. Here Take This Lovely Flower
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6677977bca475b84a3c88866b2b7c7be5507059c4d4f6c0046816c515bc6832. 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/USA560838695.
Simple Gifts: Four Shaker Songs: No. 4. Simple Gifts
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e50276bec7ff61eeb41f98230e3b6ae2cacc136ef9fa83ea34e2877eb79243b. 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/USA560838696.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bb3c8142cdf4a2955eb0b2f619672e4956b0fc7cd566659078f03ac06560c46. 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/USA560838697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2ce55c5a8b17fa01b9d18cb79f0ccef1acc2e5a90efbd1eb09d38d01e0b6b18. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/USA560838698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecc3475c515a3c3fcf8684af9fc2c36f4fff08d092c817e83cb5fcdb9ddc266f. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/USA560838699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2be805211da8beeb75527c4150310894fdef0724fc3d745b416656a226e3643. 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/USA560838700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd74c5d434947415cd70d9fd20f1a6cbffb93510981b995fc2ec27254caa19074. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/USA560838701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0648a797d207a20b527fb6a7e44bc6b1fd5834c1dd4736c0a81d81735cb6e0dc. 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/USA560838702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0d227f8a516753603a0edb5e345d2822add670a1a413cc308447f623cd5c748. 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/USA560838703.
2018 Midwest Clinic: Carrollton Wind Symphony (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4c520b9989462b3559fc9cafd97feb9ee4dcafe1501a87c0743c9dd321ffcd0. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/USVZX1902607.
We May Rise (Arr. P. Hazzard for Wind Band) [Live]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe500f83b319d194312602782557488c5b128504bcfc02a06d87f579a8133210b. 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/USVZX1902608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7875398329bfbfe23846560ca05e75e87dc46ff1c31f855ccd11304f326b656d. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/USVZX1902609.
2014 Midwest Clinic: Vista Ridge High School Wind Ensemble (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf667d39502c59d12769015a51ebb1a0c8783d389fcd74769cdfd9e4af62ad83e. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/USVZX1416402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x198a6f32fcf79810e8637914419fc5d87c5830deb225eaf7fa87cab1e391c390. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/USVZX1416407.
2012 Midwest Clinic: Marcus High School Wind Symphony
2011 Midwest Clinic: Springdale Har-Ber High School Wind Symphony
2011 Midwest Clinic: Creekview High School Wind Symphony
Blue Shades: The Music of Frank Ticheli, Vol. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36d891b34de73993c8f0166de99c578f40f1c4ae66ca62f1c426aed3feeedfbd. Chain 2 (Bitcoin): anchored in block 960485 (2026-08-01T00:10:46Z), 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/USA560838859.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4f7d57b700ffe7014a4bd9ee6c9074f68e9c8689d20a03667f9379f58105ceb. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/USA560838861.
Joseph Lulloff Plays The Saxophone Music Of Colgrass, Dahl & Ruggiero
2018 American Bandmasters Association (ABA): Baylor Wind Ensemble [Live]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa017a73f6d70e3f817cf6c3d73fbc5f3d3b39f0ce2048ebf5e1a6900a2d3fea6. 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/USVZX1819513.