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 0x8aba54cfd9e750aa42c1e010cbcf35135ad563113401f1891e0f4caca23d694c. 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/13420566-7981-4188-aed8-7c89b46a37b3.json and https://artists.proofprofile.net/proofs/artist/13420566-7981-4188-aed8-7c89b46a37b3.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 0x3beedf68b981c4dc9da5343b53c32f941caab9deb42df5f0f57d28612b2a1187. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/GBBLY0606966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x537b144d39cc1e74c72798bb833c81b602d6654e472462c06685d0bce0a85099. Chain 2 (Bitcoin): anchored in block 957576 (2026-07-11T14:19:48Z), 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/USUM71015008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ca7a9a3b1fc2ee11faa57924af47b783eafdc1baad89e16ae5c7fddc719c2f2. Chain 2 (Bitcoin): anchored in block 957569 (2026-07-11T12:44:25Z), 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/USUM71015011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x391f7dce9296808ebf8604307a06b43af2a0fe6039fdb3bcfaa9fb867ae74008. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/USUM71015013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x760bc743d5c00f01cac93af40c620ce8a1338b315b645f0408f131fbe50233bc. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:04:25Z), 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/USUM71015017.
Ahmad Jamal At The Pershing: But Not For Me
Volume IV (Live At The Spotlite Club, Washington, D.C./1958)
Taboo - Live At The Spotlite Club, Washington, D.C./1958
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa39d44e55a2958ca22f2ad287e0636b2090c0a4ad6d9a6bbf9da92d7b20022ef. 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/USGR10200608.
Should I? - Live At The Spotlite Club, Washington, D.C./1958
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x037b02ca3a7cb4366d6b735a3e69b18f74848fff21f7f920369279e72c29d4e3. 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/USGR10200615.
Stompin' At The Savoy - Live At The Spotlite Club, Washington, D.C./1958
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bc582a1356e3f190f5a0050ca9cac272ef8382b2635403a7738a622d397fac7. 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/USGR10200600.
The Girl Next Door - Live At The Spotlite Club, Washington, D.C./1958
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9282c8314b0c15a23e10243819abe9aafc20e40e82ef1fb734940f59bdbc3b47. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/USGR10200602.
I Wish I Knew - Live At The Spotlite Club, Washington, D.C./1958
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d3ed900be163ced68dfabf59f67b281d41b4ee87115b2e01b83ac291b47da15. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/USGR10200599.
Cheek To Cheek - Live At The Spotlite Club, Washington, D.C./1958
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22c3f7e857429970958b2373e136420107ad0a2bbe9d8c2a7780a2e6152f2a1b. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/USGR10200601.
Autumn In New York - Live At The Spotlite Club, Washington, D.C./1958
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x230acf970386bf320b5e9154d41dace74bc31f3778cb85a19467d75a7f31cf43. Chain 2 (Bitcoin): anchored in block 957573 (2026-07-11T13:43:13Z), 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/USGR10200609.
Portfolio Of Ahmad Jamal (Live At The Spotlite Club)
Seleritus - Live At The Spotlight Club/1958
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fd588884de11065239bad31725e87ddd915c3e462309a0c6384d79215c04d6a. 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/USGR10200617.
Tater Pie - Live At The Spotlight Club/1958
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x563e3a1241a1f7f4a28d9696938bcfd40517c97310af57843d235908578b57a1. 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/USMC15848979.
I Didn't Know What Time It Was - Live At The Spotlight Club/1958
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe66b5cc73d2f51790ce2e9de3b347d6a3f6babfa75988d2b3a795ea747bab75f. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/USUM71015112.
A Gal In Calico - Live At The Spotlight Club/1958
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x690f7fb5361e05e184207f005733fe74104f08c96528a8f95f13d8615d65650c. Chain 2 (Bitcoin): anchored in block 958733 (2026-07-19T12:51:21Z), 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/USMC15848977.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f93abe09e9ec322fdf6584f5e37b3205049815e002b99e6b40ff6f9a1fd7ede. Chain 2 (Bitcoin): anchored in block 957576 (2026-07-11T14:19:48Z), 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/USMC15810343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f1258c22b48f666e90b7fd62d96363634f499ff353d3e3f6db07c7d98bd3f29. Chain 2 (Bitcoin): anchored in block 957576 (2026-07-11T14:19:48Z), 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/USMC15810345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8eb8abd271b683ddd0ac87ac286940425cfe88180abc7c0f9a0e43fdca66472c. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/USMC15810346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32d46840f19b70976d8768770d95d987e29797aa48788a1bc911479a19cdff0c. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/USMC15810347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee31256752ff4c48d62a4af3977a2f7dd986882760061457687561770d175b1d. Chain 2 (Bitcoin): anchored in block 957576 (2026-07-11T14:19:48Z), 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/USMC15810348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf1c316120e990baff2e855612a6a5844877e12c43c09cf0ab06010855ce232b. Chain 2 (Bitcoin): anchored in block 958706 (2026-07-19T08:50:34Z), 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/USMC16111093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x224b0a458fb05d53900dbdecc5c44ea5837d2472ad5513ef71ded9cb72b9bb4c. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T15:48:23Z), 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/USMC16111094.
Moonlight In Vermont - Live At The Pershing Lounge/1958
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f4890d70374141abe2c0ca5cabd322c3bd24e2a4a97858655bf7ff4cfeadcdd. 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/USMC15810744.
Complete Live At The Pershing Lounge 1958
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf78ac037440d9b4fbe27fd4ef4334435261e9777d9953069c826c5d17ba9cfdd. Chain 2 (Bitcoin): anchored in block 957576 (2026-07-11T14:19:48Z), 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/ADA010909905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9b2104b2149063757a68705ff2b8dcc36254395f97b69409e23e305b39cce98. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/ADA010909819.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcd0deac74e385c7669124802be4e6efd312c5a758a8bd937e5964180f6c0fe9. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T23:43:06Z), 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/NLG620415320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb64683a15879538ec66dd1ae67231707653609fba86d0ad3d8d8eee13243de58. 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/NLG620415332.
Chamber Jazz, Vol. 6 - Live at the Spotlite, Vol. 2
Chamber Jazz, Vol. 4 - Live at the Pershing
Chamber Jazz, Vol. 5 - Live at the Spotlite, Vol. 1
The Complete 1958 Spotlight Club Performances
Ahmad Jamal Trio: Compete Live At the Pershing Lounge 1958
Ahmad's Blues (Live At Spolite Club - Washington, September 6, 1958)
Original Jazz Sound: Live at the Pershing Lounge (1958)
Ahmad Jamal Trio: Complete Alhambra & Blackhawk Performances
Complete Live at the Spotlite Club 1958 (Bonus Track Version)
Ahmad Jamal Trio, Cross Country Tour, Vol. 1
Music! Music! Music! Put Another Nickel In (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09be77a906043b1b24957aaf322db60f50363619e98b6efa99ae0d80c4e92afb. 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/AUXN22336307.
Essential Classics, Vol. 518: Ahmad Jamal Trio