Walter Theodore "Sonny" Rollins (born September 7, 1930) is a retired American jazz tenor saxophonist who is widely recognized as one of the most important and influential jazz musicians. In a seven
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 0x6eded8ee0cc6148ed29ee5bf279feae79f428c0eaca8433c69648e10cb28a759. 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/5df3110c-6df2-4372-8c69-801fad8c35d0.json and https://artists.proofprofile.net/proofs/artist/5df3110c-6df2-4372-8c69-801fad8c35d0.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 0xf038959fd67cd78d2d484379c5e19bbfa4a398817dfb497086c920090990e421. 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/USBB10300408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca34a309791bf5a077b0f5496ffe9456d996bf9832a775a7afb28c4b432765b2. 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/USFI85600001.
You Don't Know What Love Is - Rudy Van Gelder Rudy Van Gelder Remastered 2006 / Shared ISRC
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d740ad4057f848258c03c514ac63a4c2855d57115db0b3b076011a9460802d9. 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/USFI85600002.
Sonny Rollins With The Modern Jazz Quartet
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcd909cc3af368227651f93a80ab8881123cef7c0321d67043f6eda4afeee287. 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/USFI85300142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc81573c004cfb3d8c528b827287b90d722e259b0257c6ff37edca9786332df1b. 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/USFI85400178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9315eb2f91666ac25c117680658ce44623f57c9de1204367433ee3bebd2924c5. 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/USFI85400179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe67f197a15826070fd30d01d92f2869fbdb1c5efd1e69bbab747b315d09767cd. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USFI85300143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9590f008c6483c47653d6b1b7e0580eaa0897d641939acb377cc3450cf1e41e1. 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/USFI85200069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7390c2dc39c42efcac9eea91795e741562694dc0bb1577dbee077dabdd8760a4. 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/USFI85200070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf81874ddbe7e8c3c7e9afd252677d59b71489fa20277ab087388c397764b54f7. 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/USFI85200071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33dfff4504bdd18e3e9d47ce2ef4bdc51439861a3546624f629ee65671ee6f5a. 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/USFI85200072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7027ca3cacd96e208940fd61537808469190cbdef78a0462aa40a183bd156870. 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/USFI85200073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cfad5784ba4eac18441f8a9a62c4713ee18ee765fc8b9fb98a3256b1a03549b. 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/USFI85200074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88baa624f7bdecd60afd1ba1dce4ae46035bcb06f89cdc317a4363526c276306. 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/USFI85200075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b12156d0bb5d4d06e9a668fabbdac9ac5cbfcbf8bdfad0093c18f6395de7301. 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/USFI85200076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda90cf5b547a63b61b4824449be7273527c3967099b065b2cc816a5c5e8b484c. 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/USFI85100049.
Chronicles - The Complete Prestige Recordings 1951-1956
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda90cf5b547a63b61b4824449be7273527c3967099b065b2cc816a5c5e8b484c. 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/USFI85100049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ab4edade50c397f735a4684e0114bd6cc0a2ee10d0003d7a904177c44ad0509. 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/USFI85200008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8049ccdb20e614a85f88b1edd2012dbcd7b82a231c7c39d2db08127180882e88. 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/USFI85200011.