Uto, UTO, Utö, or Utō may refer to: People Given name Uto Ughi (born 1944), Italian violinist and conductor Uto Wunderlich (born 1946), German sports shooter Surname Datu Uto (died c. 1900), 18
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 0x46c3ca4760c98d4ce6f56ee562102a5b77cb4f74ce7a5d27f6ffa8cc4234505a. 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/9e25e245-efe2-4ac9-a28e-e53c5e95ca2b.json and https://artists.proofprofile.net/proofs/artist/9e25e245-efe2-4ac9-a28e-e53c5e95ca2b.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 0x2bce6bb6b5c24bd18a155c49b5582bac341004a6fc0277ee813704148a4d909c. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), 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/FRIDO1910219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x667326f6c9fd708ad4f778ee1edf8dc5c63ffbae028d2024ada2add01bc13d1a. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), 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/FRT092100098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc80f3130b1bac2a20610f83f80b81ba53682c07cdc5bdd9193b35f205fe156e8. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/FRT092100105.
When all you want to do is be the fire part of fire
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f329dd5931c83866938eb318149bc33e59998488cc660479696fcfd4eabfbeb. Chain 2 (Bitcoin): anchored in block 958639 (2026-07-19T01:18:30Z), 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/FRT092300132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbffad52c4fb645ad0a991b4df95f91c4ad6fe3e606bbe3a37595d8f9a89ff43d. Chain 2 (Bitcoin): anchored in block 958185 (2026-07-15T18:19:04Z), 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/FRT092300131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e189a496300bf7c82192d1f5fbcc58a499d26bdd0b8f736de7513cc9df7c871. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/FRT092300133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b9fa9c0305d87c97b6af9aea33bfa407ab4886e0c0d92d302ebada07969749f. 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/FRT092300139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6c6bea2cd93f6db8895f10311f8fcdf64cbeb919cb187f8c4adf00e0bceaf92. 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/FRT092300152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b9c1278feaac198ec16e2aa79fe097c9ac9438a802d170d43d48369194c889b. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T15:07:00Z), 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/FRT092400004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51358ac742d29da61e8ac965e90487d41fc07f3f8bbe0784685d9f495184732e. 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/FRT092400049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a93e4e1af3a23c163b647cacd04b2bab49acf4ea7d8c7b6832e4ab1c49949d2. 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/FRT092400045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f46f2cf2dd8363508238a2e68ce635f85dab84468df35cd4630e0dd11358b9d. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/FRT092300138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa18065c78ed2cd97771e773108671da0175017e47e7259de66b9e0bbf141205e. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/FRT092300135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6700b822f9ec2bca0947b9fc31ff6c5ec263cef80505e57a77e01cd680804867. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/FRT092400069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde59c867b14d1aa4d7d25132cc48173230d10c5cd1794d2b1743f0944e0b9e5b. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/FRT092300137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f46f2cf2dd8363508238a2e68ce635f85dab84468df35cd4630e0dd11358b9d. Chain 2 (Bitcoin): anchored in block 958075 (2026-07-14T22:55:31Z), 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/FRT092300138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b9fa9c0305d87c97b6af9aea33bfa407ab4886e0c0d92d302ebada07969749f. 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/FRT092300139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6c6bea2cd93f6db8895f10311f8fcdf64cbeb919cb187f8c4adf00e0bceaf92. 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/FRT092300152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cc98770b6c8739b9e563bdf6b713b1c16e47ca323bddfd3e9bcbd8a92bff6fe. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/FR90Q1800101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93b9bb700fc9aed3fde8d0ea9d30f523c21a65fc443b6ec5dcd1df1c2ed60684. 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/FRIDO1811804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8a4d1bc50b98882696ba59a45256ebffbb01199d78f3ce7ba6b04aa8600f9d3. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/FR96X1660632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9294d0b821cd9aa20377afbac37220e7f2efdd3ece189b8454d085241905a26b. 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/FRX201737500.