Wilbur Harden (December 31, 1924, in Birmingham, Alabama – June 10, 1969, in New York City) was an American jazz trumpeter, flugelhornist, and composer.[ Allmusic biography] Harden is best remembered
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 0x647edd78ab1e70208ca8aeed455b7ea05c8e7c4d4480e2e0c38199c81fc5a1e1. Chain 2 (Bitcoin): anchored in block 953807 (2026-06-15T16:39:18Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f34cc0ee-8437-4646-ba91-11cde9292fe6.json and https://artists.proofprofile.net/proofs/artist/f34cc0ee-8437-4646-ba91-11cde9292fe6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
West 42nd Street - From The Album Mainstream
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 0xd080b43bf25cb09d135eaf69d1434687f663182d7be88f3fba633467b3331a24. 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/FR8X02400723.
Anedac - From The Album Tanganyika Strut
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5eb5cd42d8385606e6d67b7594376acf010d8423165f391e88e5d2072bf1b02. 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/FR8X02400733.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf6f86d4767c23a991dffaf1c93a26e733cfb07218a57c1602943302e83781ef. 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/USSJ10300728.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14625fcc3aeb360303419355cf5dc03c5c26062f0f855b468feb3c8c80366ee8. 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/USSJ10300729.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e8dfb212f8e2ff5d3d8822bdafc82f17f8bdcfb80fa48d7b50e37514c4cc529. 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/USSJ10300730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79502fc6f55ee1ea7c8de0d237b9c9de2b1ba7eb9857fb79e4378b757ec67244. 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/USSJ10300731.
Well's Fargo - From The Album Mainstream
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8b29348a8f523a4071642a74a9434769814d3d01c5e8e74b0a91f09eefb14ba. 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/FR8X02400722.
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 0xf13ee684f4aecbce91d3f95fdefcea0cd081cb6ff5e8bc593813c3726132b621. 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/FR8X02400724.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7021ffb2f94ef01f4dea4167d777d5648a96419494ddff8a5959c81a9f9d1fb8. Chain 2 (Bitcoin): anchored in block 960181 (2026-07-30T00:53:20Z), 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/FR8X02400725.
Rhodomagnetics - From The Album Mainstream
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f29683b6c61d9d9186c257a33a258339cad4a9689efb9ab535f60fcf378d0ec. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/FR8X02400726.
Tanganyika Strut - From The Album Tanganyika Strut
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bb98a2f9a9956bf7eefe2c6cfbb2e0dab908465b1d2262c49025d827e8e6099. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/FR8X02400731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb63b16fab95052f48205594c8e97ef63dcdf7c425b3a30b0c00f5f014bcb9d68. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/FR8X02400732.
Once In A While - From The Album Tanganyika Strut
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf7e4e711e472f9d4ff12db7f5f374fceef5aa59d9e94ec41a446846c6793432. 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/FR8X02400734.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1a334ef50b65a3745a25c88f207acdf60ca5f60786d6d548fe18c61691d55ac. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/USSJ10300727.