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 0x7f1c30df8cc94ab697f1e47780d6f54eb4fb7fcd3a9002b7730a304b18b23b2c. 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/cf4598fd-6e80-475a-a907-2663b3dc64e6.json and https://artists.proofprofile.net/proofs/artist/cf4598fd-6e80-475a-a907-2663b3dc64e6.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 0x3618f26e53302b50fe0118c334b2aa1a26e0cbd74bdfeede80a6a98818bdb1fa. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/JPA600100780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73211a739fd9f45713d4823f701e963bf16d2a9c8d8aa6732b286dde9f268a09. Chain 2 (Bitcoin): anchored in block 958380 (2026-07-17T07:07:02Z), 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/JPA600101290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf352bbab157c569f537c79361e7821c7ccdca8ffe087bfc3b02efabd049f8f3e. 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/JPA600104240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5939c68d9de59c5ce2dfa1b6c04621790aaef8efb8c72210f4cdd80bbfeffa43. Chain 2 (Bitcoin): anchored in block 957620 (2026-07-11T22:32:56Z), 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/JPA600103130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb413819ccec2c52a446cb8f1464d321c4eea91d0c3b3d7c77c2b08998bbe2eb0. 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/JPA600104690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67b46acc19aed6ac90e2beda9ae2c88ce90bf49df43430b4d8c4fb7246045741. 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/JPA600200900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57ad5a4301e64e39899cb8ef1856b79b0b3ab8d3f3369b75d4ced92c30655c03. 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/JPA600201980.
ミュージカル「草原の人」 (オリジナルキャスト盤)
Musical「sougen no hito」 (original cast ban)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f0496b996de7f43a125f53cc05c6b407ce4dd01e0cf3c9fcbc4687f4c53ba74. 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/JPA600301550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4e92eb575144ccd769b0e375eb35c729c43546de2a5653ed96f877f742068aa. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/JPA600300590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b32f2aa27f1e881969ab2c1f7185bc2ca04461d7bf1b7f8d79ffa8a0619d194. 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/JPA600400530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37c1c98b168a3a0a3d4a5a82658cecf72166b803e5a090456f73d7599f43c57b. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/JPA600402140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9724efd73e697703786c3c3e5135ebc0f084529e7414c04ef0ff518539eed7c5. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/JPA600403130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68c8ba78027b9ef9d6e88251dcf65d64b31177376be767243415e6153c44f36f. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/JPA600302680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf609324c0af546b970fc9bfd2649aacf68e4f76c02ca240f603838587f4b5e1c. 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/JPA600402830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b1284669474a6a86c2ac7ac8549aedb9ca839919dabc9c78c1420d8fb0f212d. 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/JPA600104620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x783195dda992bd98298e0c6b1ac6fd60e9feed2670c7defc0006d1f9156ca8e8. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/JPA600203140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a6fd97dc67235b5ba98ec73300366b6e8cea363f4144f8fdf9f3609b7c51d51. 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/JPA600501480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73f54c522d2230faee1328538f171c3d83f108be39bfc207bd4100123f8fa92c. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/JPA600600010.
SUNA WO KAMUYONI... NAMIDA (STUDIO LIVE VERSION)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dad68858ceda47b17e9e839b2a0029145d0f79b26bcce17119ab4a702d7b27b. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T20:03:27Z), 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/JPA600601597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc452b1b593ca2991c25414aadeb6283a7c3f7b743eaab9cbdaf834b26347a69. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/JPA600700243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9000719bac55e779f0bed8d1842341eb8b760ef78ffd6331427cab6a7eb30a0c. 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/JPA600900039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84031d545612fe593500de098e7e974729e09ae09edc3ee5d274221e004e3c4d. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/JPA600900040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34c83cf835b847f1d8720df1f0ff952424f95d09633a8b620123d30171d6014c. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/JPA600900041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56a80967826085fc0c886918eacdab3c739fc0f0304556044e1fbf47a3493119. 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/JPA600900043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c72b058137d0a381db13b695210036853b582564afa862524325750153784c0. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/JPA600900044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc90dcafff77d0dada18d84e06f29b887297fce8faa34b785a768d02030b04652. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/JPA600900059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a36fe1f81d57bac123433f43b9e9157bbe9c78cd405bc8af431f48fdb3ef940. 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/JPA601000348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dd3fabfe42865d7657f7f8ad4720711092d58206e241650e4bc3cc56985460b. 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/JPA601000349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ffe0903db7369b1907a14925c337e3848bcb75059b2972a03c39253dd9b081d. 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/JPA601000352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x874d67b5ac9a154e82095e0d3c5e72dc23339957ad7b0e2b1a7264f46f521cb8. Chain 2 (Bitcoin): anchored in block 959146 (2026-07-22T15:41:47Z), 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/JPA601000353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1b453629504e7d4caadd3707d6fceb63f28b175533935c6c0824542849095ee. 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/JPA601000356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x894f524244e0d87e291a90c70ef79912fcfa0227dae62a7da5f973401d71bacb. 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/JPA600104610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa53f01a1b42043640648ead1c020420d524df6ae14303c51b86027c0a58e70ef. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/JPA600302610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa48fc37cdf55094619477857f1ab93dfe0fe26050a3b952173ca33d5b40caa3b. 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/JPA600600020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd500e492d6cda4673c70da18e48585f41509556df71aa6e87cd61dbfe39fa618. Chain 2 (Bitcoin): anchored in block 958091 (2026-07-15T03:17:03Z), 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/JPA600700154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84031d545612fe593500de098e7e974729e09ae09edc3ee5d274221e004e3c4d. Chain 2 (Bitcoin): anchored in block 958091 (2026-07-15T03:17:03Z), 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/JPA600900040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcb8ccad909692067166e49f5975d7e0c30ec93cad806a8ba3af9b69a2021f8e. 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/JPA601000354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88d77f42d0319f81b938a1e2a6108254ad7906d7d46315f9acc5f786019f85d3. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T00:01:46Z), 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/JPA601100097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3a934d2693278e6721b6d4945e4e53c1a11e48d27ac286a68c26fc859a3e19a. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/JPA601100342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7311ed5b9a62204ccdc3bac74dded1c17dff758256e2510153cd4fe173182190. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/JPPO00868080.
あなたに逢いたくて ～Missing You～ - オリジナル・カラオケ
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe29b31ac0b015c0c8ae4514ab6e88ba1f5aa676cce610afe1d2daf12754df1b. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/JPPO00872970.