REA or Rea may refer to: Places Rea, Lombardy, in Italy Rea, Missouri, United States Rea River, in Fiordland, New Zealand River Rea, a river in Birmingham, England River Rea, Shropshire, a rive
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 0xc008f2a8c6a8f66e8e6a9e021a59ca8d342ab1aa303a683de08c31ad35da9f1e. 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/afe71eb2-4551-4745-8ba2-47e99592728d.json and https://artists.proofprofile.net/proofs/artist/afe71eb2-4551-4745-8ba2-47e99592728d.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 0x623f77a75c26945f975469967d361144c5f37c24636d191ee54d5ba9ba48dab3. 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/NLT2H2201036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd5f05676e2a4ee07bd940b165f5442c73287f432118c47c7d289af3bc469fdf. 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/NLYK92300147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05fafd6f3e232e493eb3a5b30d968d52611f1cfc5a75344ce93e0eda4482fc6d. 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/NL2QC2101125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cb681f85d48377ced6f0c52e79b1f7f7fddd9fa2c7809acb2f37091a144d1c4. 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/NLT2H2200766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fc7e220e7f9a23324ee48fd254c98b8ece5521211a01d90f06d072c7ffb902e. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/NLT2H2200642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x117d5c4371446e64b6d81da402e993efffeed9afc94c6a1c8f2840cf61a778b7. 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/NLT2H2401184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb146d3a174d2d0b9fb14fe65f531b0a3a3a6f5a4528538cc75c573859fbf5054. 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/SE6HN2462655.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe705c5bd98ee993ce0890a24be4fba0896f8fa6a81d167217e3477cfa37e06d2. 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/GXBDS2373813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4523d726b40faee74d439bfd88382f48162586758fdec0c123adfa6dcff5bf44. 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/NLYK92300052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b8aef8b658d80c79d8e7577133e564f55b5ee1b1b3b7896c4481a6a939cc368. 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/NLYK92300037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6da44cf0df943b3437b2df9087ea05bc38eb849bc135d3984261920cb83fb00b. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/FICUK2300026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5069eccb11406fbefda040db6512235d8e41147bc93bd1eca34d456f6452f77f. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/FICUK2300002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3600600e04873509465461c10a45aa749930c244b597cccfd4d36c822452bcc7. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/FICUK2300010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6992ec85ec25f6aa0bb8a92edd20114969d8c49debd2b883d315ee7c9b7f794e. 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/FICUK2300015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37f64df42ffc9e03afe4ba1c1f145c7d9edd2e8d253d2184368eb5eeb5d8b019. 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/FICUK2300028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95070c14b9ec1a716f20e852aeb5f40b4cd33130445219403c58b30e20235185. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/FICUK2300029.