Hiro may refer to: People Hiro (given name), includes lists of people with the given name Hiro (photographer) (1930–2021), Japanese-born American photographer Hiro (singer) (born 1991), French sin
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 0x3fb003c227f1eb8e85327a8dfdada07bd60d84d92a0eaaf1b37e67743c91d94c. Chain 2 (Bitcoin): anchored in block 953909 (2026-06-16T07:53:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/17aba072-4609-4038-a682-03ad9eecbc50.json and https://artists.proofprofile.net/proofs/artist/17aba072-4609-4038-a682-03ad9eecbc50.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 0x037f81c66b64c2b5809d0b0310cca3d8f34af52ae6bb1dd328435dd6d1451e24. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/KRMIM2344575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x753cb1f6aeb86020490fb66f7fb7c185d20b6f23ffddc3c1ea4d488eda118847. 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/KRMIM2344576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ca26c406e91aff1f316af9ad757e7c42080aa5c3e7ba60d979ff156daa4cb2f. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/KRMIM2344577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f2f550c25e33c636b5aa0d00171e479fb8bfc20a4961140678443f453372fe1. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/KRMIM2344578.
Cesco remix (Feat. New Champ, Hamo, DOMMIU, Bruno Champman, Kebee, STEEPY, TAKUWA, Skyminhyuk, Taeb2, Sikboy, Jhunnit)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc93f5b2b41ed26fd6972d51462b59e84acdb9adbfb604c533ad2c7a771d3b8d. 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/KRMIM2344580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f7e47fad131f6ab3d1dab471de5999f6c829fb7d77323108e80645f678aa5c5. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/KSA002303319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf594bbd66ac8c1123d21f7bbfd003209a43cfac3f0d74e30920ed0991fd74530. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/KSA002303320.