Philip Rodney Upchurch (July 19, 1941 – November 23, 2025) was an American guitarist and bass guitarist who has performed and recorded in musical styles including soul music, R&B, jazz and blues. Lif
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 0x47f645ab5b300e6496385170b6fe17201ee12bdabb963189217bd298b10c0e13. Chain 2 (Bitcoin): anchored in block 953803 (2026-06-15T15:41:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/eae06e73-9644-4204-869f-c16b199c3698.json and https://artists.proofprofile.net/proofs/artist/eae06e73-9644-4204-869f-c16b199c3698.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 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 0x58540fdd506d74307a08318ef6938038a050d59d2c3d64c4f59610ec6efc4cd8. 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/QM4TX1782393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f3ab40623d6dd34e3e26d44a586c6f0dbeb2204521d13e5cc64f22bec6681e7. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T15:31:18Z), 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/USUM71603170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x988ecb446da288bc58af9b5d6b9c0b47ffc14d49e4ee9739fe435419c444c21b. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/USUM70503214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6bc6778c5e34e3af14ffa2496cbfa46acf4e93e6f2828a793f29dc8082ed89f. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/GBUM70712301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ec4a352d4adbad2cbbc1d9c12378850bd30f1499203722dd71ffb495a76a10d. 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/US3C40500120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dafaf61b652ef28ca24b134f81063904cc33aa97fa9bec032429e2026a92df7. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/US3C40500121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fa49205efa1894bf5188c2641039a97821a3e46816f5ec85ae3b1a5589bf4f9. 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/US3C40500122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ef25a1ad7ca2f8bc5ad1a771373cb0ae1111a106f02f49667a231d36ff95e77. 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/US3C40500126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1baa186a8876fe441387763b8a776b56bc1ffce99d4e6d0ba3e032ef5683150d. 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/US3C40500127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90128254276e672c4183f2ecceda368e335fe86ccbaf29707446af94d0002fd9. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/USBEN0953201.
Whatever Happened To The Blues 2015年リマスター版
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8fdd39f395d008906426ac634273326fbc78bfb094cb1e9dd02969c31d42dee. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/US78S0507605.
40 Tracks for 40 Years: Delos' 40th Anniversary Celebration!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ba81136bb850c93ee414fcd82543d1a3230a645e10429b42576d4003e0acfa4. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/USASX1344023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x204d4879cd81559a69088d194fb995e5484b6913ef86998da4d5db7b2eba00af. 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/DES299900005.
Chess Psychedelic Jazz And Funky Grooves
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x988ecb446da288bc58af9b5d6b9c0b47ffc14d49e4ee9739fe435419c444c21b. Chain 2 (Bitcoin): anchored in block 960163 (2026-07-29T23:20:38Z), 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/USUM70503214.