Robert William Cray (born August 1, 1953) is an American blues guitarist and singer. He has led his own band and won five Grammy Awards. Early life Robert Cray was born on August 1, 1953, in Columbus
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 0x431558e304493a072362bba00cb6f451144f7e7b75f21b74e3cd3b254ac05093. 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/80ef63cc-de0e-40ca-98c8-de2369a63848.json and https://artists.proofprofile.net/proofs/artist/80ef63cc-de0e-40ca-98c8-de2369a63848.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
20th Century Masters: The Millennium Collection: Best Of Robert Cray
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 0x0a2fb1e08c5a83047ad453098f0de721954777b633ee2ae90079df76266ca5bc. 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/USUMG9900522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4d6c411f058b44e794578d1a3220d14170eb3de1724a2492806ec98f532b351. 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/USPR38600126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1305d96d3f905b2931349c6a85b524ff2e7209ae2257f7519a5d0fc54c92a88. 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/NLB931200400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94fa4b519e63584595a9a8ada678c4bb643293b136a24ab82caa23210bc9f5dc. 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/NLB931200405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e46e4ee4c7cd73385b7c98e6ee1d62bb37dfe49c7ac3020c7cdf99a87436fe4. 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/USARL1174301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa759bc7cff03287c7db28bfbef525771c88ce6c66956b0ee9e79beed70e8b6d. 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/USARL1174302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9305e51cb398f085af7289fd4030fc2fa21f256c18ed7bbd54c38b3b97cb9fc1. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/USARL1174303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa249e65bc404a60bd9c20c857e7da9af70e5ef6977df62a00ac2b389ea263a02. 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/USARL1174304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9291a7ec0c0bab58f84ac013f6fd645f91ab191b432dabcbf9c1d6b24e4ae2d. 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/USARL1174305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd01c6859f18397e6dc000d3bcee279f4308c0d69ec6a9a5fdb5d89ae8cd7f153. 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/USARL1174306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8a5f19f574b6abdd9b5bd8a069d11f0b0aef260e53fbf042940524d09deeebf. 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/USARL1174307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51de18e8a12af1b520cb7104a977b48cfd7e1f3f85adf1b792c407a5ce65a9ed. 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/USARL1174308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08902438efb11da7bdd27a68699917bb019c501f01605856c27d269197e27fa9. 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/USARL1174309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf85990aeeca54f2e8bd4bf5be5c0541e3db38a828e445c36cf61e30da54bd6b9. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/USARL1174310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1d610f9731997e24b2bad1f25f1418b0429e2f885f5b28730363eb3a4ff3544. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/NOAPI1794626.
Albert Collins, Robert Cray and Johnny Copeland
Alligator Records 50 Years Of Genuine Houserockin' Music
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63c59b37aed17f3f0f20c3aaaa90c3af28aa177cfd51d662bda3e08e5d9ad9da. 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/USARL2100010.