Roy Brown may refer to: Arts, music and entertainment Roy Brown (blues musician) (1920/25–1981), American blues musician who was a pioneer of rock and roll Roy Brown (Puerto Rican musician) (born 194
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 0xd2cf93f4f23a347a09410974e188956cef0b8bd7eefc0e93b16b3994f9d387b0. 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/cf407d9d-3ad1-4703-aead-753c109f2acb.json and https://artists.proofprofile.net/proofs/artist/cf407d9d-3ad1-4703-aead-753c109f2acb.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 0x994a462e9ee06e1a08089c37cab0897cc9a3140afa669fa3073c2193d4879778. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/USQY51328901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62fb8c5cdb9d4905e4dc113c750433fb222c24393fafefb967f3e20ca806e72d. Chain 2 (Bitcoin): anchored in block 959073 (2026-07-21T23:25:37Z), 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/USQY51328903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63963a90e44cb941a69ee51b27ce6050d062bae1d62412e4b92f823882abcf8d. 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/USQY51328905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce6061f6b0629685b3f24b9f690452a644838fe660280ddf9e28ba1c4b3d3d0d. Chain 2 (Bitcoin): anchored in block 958726 (2026-07-19T11:47:20Z), 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/USQY51328910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdebb97d3b351aaf1aa4f7be0bb38e491ad1400a383860c128de548c9c5c0192a. 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/USA2P1203731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x779e43736e9981c4953c54888cbf17fe89182290a15786769d208e2f0442237c. 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/USA2P1203735.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x670506b53214f53b5fccfa62f415ba39676b442003012b4f171b9457a59a899b. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/USA2P1203737.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30192de44328f73764f7711ecb3ffb85303e876d4017cc1964eb3490cf9453be. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/USA2P1203738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9f82d46aa268dc0da77a045de1f568bd6e7f74a2bddda835533572bcf29584d. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/USQY51393864.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42d215920584fb58a84c3ec2d9a8c1838cfc536d859713296ed2dd40bc129723. 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/USQY51393869.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81efee47dd72e34ad1c112763325022f39d82c37400418922687ab56209e809a. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:54:02Z), 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/USQY51393873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3c9346549d64e85f2ea443e0b6401a34444a618f7868aae88d4319e8faef9c3. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T12:09:51Z), 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/QZNJW2030689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7b4dbff3cc36c07c53d7d60444e88b2fd3df74215f3b540597fd744b3e2e4a9. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/QZNJW2030700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4f59c9097387b2c2b67d88f99d04f2eca86bc663fc1915a642097d2050bf6cd. Chain 2 (Bitcoin): anchored in block 959051 (2026-07-21T19:48:03Z), 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/USA2P1203451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02b48a0adfb13fefc77db74a8de555ec272820d89a3baaf00bd45ed1c3706354. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T09:28:28Z), 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/USA2P1203462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4d6fc6919a9abb13f440b20fdd6ac7703b3a97fec334cd1b106f583d29220a5. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/QZNJZ2559261.