Baro or Baró may refer to: Places Bangladesh Baro Vatra, a village in Gopalganj District Guinea Baro, Guinea Iran Baro, Iran, a village in Zanjan Province Nigeria Baro (Nigeria), a town in Nig
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 0x985b0ddc8e6306c793ba509201b8cfb540d16d832b78c181341a7d3d8a357f80. 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/1602d2cf-6ed2-48f9-ba30-bf2a40de3605.json and https://artists.proofprofile.net/proofs/artist/1602d2cf-6ed2-48f9-ba30-bf2a40de3605.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 0x722b32bd25370737cb12e6b5ee8cda1b845721d79ecbf993a8af9d5308cf9876. 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/QZFZ62252139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9520b5aab713f0b38e630d19f8c028556b1df20a6f38095704feb03cf71b13a6. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/QZFYX2241321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7496109e4c84b92f3c5f2448b4de764c52c65533e94c77d43318aaa262c357d2. Chain 2 (Bitcoin): anchored in block 959076 (2026-07-21T23:41:40Z), 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/QZDA62272651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18d20d6bcdf881de0ec830d67680d162ef69859d749225ac0d5471eb4a960fa4. 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/QZES82205689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1135c2bdb8f0050858308157eb478fd0d1975d5d7344196fd59c1e743688d704. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZES82205690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0897b24bbe0cc097b96c242bd6662cddb84b59a3cf4406b3e12ee73e075d8091. Chain 2 (Bitcoin): anchored in block 958473 (2026-07-18T00:52:36Z), 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/QZHN72299708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b7c6010924c640ab7a3d3d4fc3f9b261a98dcfb54a69ab8246c4fbeda4b9b5f. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QZK6H2238693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ad45f403765fef31fe636ece6f4612826c1ea32d6ac2a890235ac3addbb9bf0. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/QZNWR2279617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad3c2ee898cfa189fc33e253911bdac45685063554412b5f6c2acc44bbbee16d. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/QZTAZ2267245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a9a838aee43ae6aeeaa42d512f799306372b78d793162641559ef950ef73dce. 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/QZTAZ2267247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6de7d7c3a18d7e771cd39f9c07080bbfde9d67c63a9204dc461ae7200f35447f. 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/QZNWX2289934.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6f6c44b2a037df93a04c1d53d65bc0f7e724ff365de40525966c448b2a3877a. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/QZNWZ2354547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c0fe96d2d0da252e0df6acc5737c450c2bc1724f4f8ed03e85768750441548d. Chain 2 (Bitcoin): anchored in block 957522 (2026-07-11T04:46:56Z), 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/QZTB32337527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4970d26bb77f0cafb1f8da148f94ef550ef73635611e542a19d9131598030609. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/QZFZ32364365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c61a7247c93324529276ba46bd566910b4bbb5060f3fc26761efc57c68c5d57. Chain 2 (Bitcoin): anchored in block 957546 (2026-07-11T09:35:53Z), 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/QZDA52388912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x731c56967b87dafa378e7e97549ce101b92c51216114cc46e14c56c904d4a0e7. 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/QZK6M2292236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1c6a285aad7a8b7fda46e43919d42f4b69cd662dd0123cd80197ca4f469ecec. 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/QZDA62484449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a09814a18f717013e442fb10462a1dafc6635041a3eea723c6c3cb72dd7687d. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/QZTB82441258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ff6d29c991654e2f0358e47c47311757a41860534a68f6658b8d836da2dc72b. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/QZK6H2476064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80edb6b5df90b63c0cc562b1dc411c36aead7292618c01104eb968a831e88a56. Chain 2 (Bitcoin): anchored in block 958526 (2026-07-18T09:09:53Z), 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/QZTAZ2403629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cd0563ed5b0699a376de4071e9d6485b3d76c43a3f3950208d7a6be078b1eea. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T06:33:30Z), 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/QZTB82438799.