Gary Lee Clark Jr. (born February 15, 1984) is an American guitarist and singer who fuses blues, rock and soul music with elements of hip hop.Classic Rock Magazine, Issue 175, p72 In 2011, Clark signe
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 0x75290c23589d1ab663a74ce12d48df89f4c281cd2c0775ad321bf80614fc08ed. 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/b76cf41b-7b50-4324-a738-a54c75840414.json and https://artists.proofprofile.net/proofs/artist/b76cf41b-7b50-4324-a738-a54c75840414.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 0x1b9343ff8529a799e42e6c8dc9d2f86c35ee1e9af0c96706d97b339ce1bd7b90. 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/USWB11202295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62bf8d059120c999a29048660ab144400282d758f7de34a36617b3df03c1b5ca. 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/USWB11202296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63c06c9fc760229d21b37fad8548ebe24db2015aeb7b82e41129f2f9353da29e. 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/USWB11102004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c3ba403acba17f6bbc52b6f6451a682d71c9bcf91a7b50299fba4fb6e7dc994. 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/USWB11202301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf680911e245ff911304a532f861809e3be32d641f2a88cd7938e19b36d5e5b17. 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/USWB11802278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffe58212165c8a1db4505ee5ab029a2d3e7399b0b9fa44f90ea750f84a542d6f. 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/USUM72100521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b7eeec84007422ec75c35493e2cc00d870b4068d393b205d7cdbc2d7860fe96. 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/USUM72019344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63c06c9fc760229d21b37fad8548ebe24db2015aeb7b82e41129f2f9353da29e. 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/USWB11102004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x606db61b4727275ce34f6b9285658fe095585c543ada82933937176cefdbfd7b. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/USUM71305235.
Sheryl: Music From The Feature Documentary
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x764d9c0a456f96f4e3edb1cb125bc8c671296364a7de2c3b9aa213e5038019c9. 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/USLXJ1943015.
Salvation Mountain (feat. Gary Clark Jr.)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53296202d4b683a9a0b98db2132d362f50006ca721d83d1a46e6a11a4bb4afa2. 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/USAT22304119.
Salvation Mountain (feat. Gary Clark Jr.) - Instrumental
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e32d199e3cfc4447bee67ca870a2b3144a01efb0c3683b394b268720ab3852a. 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/USAT22312749.
Threads (Big Machine Radio Release Special)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x764d9c0a456f96f4e3edb1cb125bc8c671296364a7de2c3b9aa213e5038019c9. 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/USLXJ1943015.
ELVIS (Original Motion Picture Soundtrack) DELUXE EDITION
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdffa54462af2feade62e7022d2f6bba320593a26cc4ef5035639639c07ed24a. 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/USRC12300635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7341fd7e08c86260a8343ae2d1077aae84518871b2e7382ac8d00f1c5ddb13b3. 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/USUYG1142565.