Reo or REO may refer to: People with the name Reo Fortune (1903–1979), New Zealand social anthropologist Reo Griffiths (born 2000), English footballer Reo Hatate (旗手 怜央, born 1997), Japanese football
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 0xc11b7fe60f0af8042b57ab55e8d1ba6ee65a82c6ac8e66889566275b637e1abd. Chain 2 (Bitcoin): anchored in block 953616 (2026-06-14T08:58:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1ae2b8a3-0813-41ac-8e8d-6f9374ba05f6.json and https://artists.proofprofile.net/proofs/artist/1ae2b8a3-0813-41ac-8e8d-6f9374ba05f6.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 0x53e4abdb216405e78bcc428309ab63dcacbc04782b5a00d2dea65d85922558d2. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/ESA092317429.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0160b26aa6d45687f3a2f464f29906dfeb7949846a59092f870b8782cd2e65d6. Chain 2 (Bitcoin): anchored in block 958104 (2026-07-15T05:34:05Z), 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/ESA092412118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ee13aaca373ff749a6f4151fb5156f71ede116d8a31b8c86b2c0a41dafa4afd. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), 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/ESA092412123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8640c45d0533a56d18fbaf5971159e2d270d0c67493a38cee5b42b09c3d19b29. 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/ESA092317433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa238f00ba0a76481cfb9484fd49e11208f50c055d36effc0657eefb91265ce14. Chain 2 (Bitcoin): anchored in block 958329 (2026-07-16T21:48:38Z), 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/ESA092412117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe64f3c00c52005d17ec03b10ac3ac25b3e0cf6f2ed7746f1478bc818b7d758ae. 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/ESA092412120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5027d3747561bae2ad98864dd9fb726baf51834ce61f1291c789b62494b5b265. Chain 2 (Bitcoin): anchored in block 958371 (2026-07-17T05:45:43Z), 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/ESA092412121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5aedf5701adde5673ec548a84df09221e687495e6c64b51c3f3b6c133d62c7fe. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/ESA092317431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef26678e0c63295fc88bbd7f77c205625853322bf0ba3a6404b5dcb08a1272c0. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/ESA092317428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89f79b2bf54614c806c0f496ab22ad392204a12c6e9eb04f544f214a1ce22f94. Chain 2 (Bitcoin): anchored in block 958401 (2026-07-17T11:10:25Z), 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/ESA092412119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb10010ebc9bbc0f37b6c272570a7128fd4a2a90bd94d89ed95f9d5e0fa223d56. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/GX5MY2264823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4a50806702e4dd650121e8b8f9a4ad1c5676a2d4405298abc082d96c16d8d5d. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/ESA092317427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5ca325845af6d3343014b09074707e218fbb65feceab36bd7ab209c737f7982. 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/GX5MY2264822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a64fe1d2836b9942b3d437380b6ad79b0e07e0e25cef20cb11841882b8b4163. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/GX5MY2264824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbb1b8a3b6dab1ae9d3ee67ff1e27a3f2ae9ff4fc704b4f898937286777b5941. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/ESA092412122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12ca0153ec63c8618c680f11f27b76898ae97a3cfd0358b44908d1a4de522609. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), 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/ESA092412124.