Miyauchi may refer to: Miyauchi (surname), a Japanese surname Miyauchi, Yamagata, a former town in Higashiokitama District, Yamagata Prefecture, Japan Miyauchi Station (disambiguation), multiple trai
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 0xa13dc65c443ed19c1788dd0d5926370f019424951db6e9761b20fec43c8bb9ac. 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/2dc7a906-2106-4d32-894e-90f3afbb6bd1.json and https://artists.proofprofile.net/proofs/artist/2dc7a906-2106-4d32-894e-90f3afbb6bd1.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 0x083080f3b9a888dcaa69131005aa3e39421968bc06136b3855662e7a9dc6ab91. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/TCJPV2347375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ad97abffccd13ab0fd205f78ef0f92087ede5e3c72633e48289876a37e917c7. 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/TCJPV2347370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb45506c756729218c31086b307c907a35bdf54f5dfbe44c8f193388e57a75eb5. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/TCJPV2347391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x597f45d5cbb8f9fc8f616160ad9a30b1ad01281673f06a32ad8c216a430d2687. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/TCJPV2347395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x511224ca11e22abd174d0cbb6cad684f5466813753a8d7326c3b3c46149fa589. Chain 2 (Bitcoin): anchored in block 958738 (2026-07-19T13:10:36Z), 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/TCJPV2347398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb43b4b9d0a88eb05d93e51503730d9cd3c577d869569643c37bd3682aeabb80c. Chain 2 (Bitcoin): anchored in block 958987 (2026-07-21T09:04:56Z), 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/TCJPV2347379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe513dc462bbebf08a859e7c9826b271245230781169cea1301746d4e80031171. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/TCJPX2358788.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f7ada3398a9ed098cf9731db5a457b31815b72bef1f39715fa3c81ed87afdcf. 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/TCJPX2358783.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb987c8ffae61a8ba6aa4660e2b99c68724b158011bb79d587d4f4fb395f94071. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/TCJPX2358796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45c08cdfcc0af781b34712121856f3b51e0abda66b2de76787b27a8772eb931f. Chain 2 (Bitcoin): anchored in block 958087 (2026-07-15T02:56:49Z), 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/TCJPX2358799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94adeee1e5ee318c4c644c6ccb0272bcb0f42428d3a72dc3640dbedceda3bc45. 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/TCJPX2358779.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe513dc462bbebf08a859e7c9826b271245230781169cea1301746d4e80031171. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/TCJPX2358788.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9494ca734fcf923e00e037075bbabd7e6592df9c133aa8b20cbf34b653ec076f. Chain 2 (Bitcoin): anchored in block 958218 (2026-07-16T00:33:33Z), 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/TCJPX2358790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2baf8b610e46e7692e630c8822d2b10b1d0236d65404f791d8e7a9c0187fc51c. 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/TCJPX2358802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45c08cdfcc0af781b34712121856f3b51e0abda66b2de76787b27a8772eb931f. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/TCJPX2358799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94adeee1e5ee318c4c644c6ccb0272bcb0f42428d3a72dc3640dbedceda3bc45. 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/TCJPX2358779.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a1e09309ab0472e006c4024cf99ae6df2bf6a8295f620e83098c0b5f2db13d2. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/TCJPZ2423523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b8c1bd6c64916a76cc7ea246172286c5b1dd04c3d13e32fe04cebf199bb9059. 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/TCJPD2419739.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb921acb57ec5fa46933b5b00d3f710ec0682508ffcc25213d4c916a2fa66535. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/TCJPD2431319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x937009168ed939a436eccdf61b507c1ac9e4828f1b4807782999ec079f11f2af. 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/TCJPD2431325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd146e31efb7c63e3c37d7447ed0e81f6943bca258be8eae6a16c82a08d010fb7. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/TCJPD2416003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73cd3192dce8a17a16e5fa63b7bd32238a947091ff31b6105f20208a27abd704. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T10:04:40Z), 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/TCJPD2431333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x061dbd61d46b3ec2e2fe7499bce8780a84ff673076ef5c8a47a763ea8896dced. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T09:14:08Z), 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/TCJPD2431320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c861309a10872067aff81aa9ac06ea938d46136bf7885e59f887b1f3fe7c6b4. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/TCJPD2431337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72ed62777d7aa6579d0f99922f9cb8936ad39782a149643a80494d60db2612fb. 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/TCJPD2431330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd61c25fa70985f49a13eb86e2d1acf13dbdaa81829189136d622ba519fa09bbe. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/TCJPD2419857.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d4d69b0e9afedcbe0b1ffd4c1071b51e340d397a33580b70994b03fd22088c3. 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/TCJPW2321971.