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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2f59eef25d4ee5a3a4c978128e1470738f33376278fd506cf6b8fa3e75e3434. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c8a984d5-35f9-44a0-b435-f3f209828fc4.json and https://artists.proofprofile.net/proofs/artist/c8a984d5-35f9-44a0-b435-f3f209828fc4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
君と僕の第三次世界大戦的恋愛革命
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaac95b075753c256adae3da430acde677d1342ddf69de44160c424655d6e4f5b. Chain 2 (Bitcoin): anchored in block 957874 (2026-07-13T15:43:57Z), 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/JPB450600716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77aa91dcbc45d04256ca39537f9a17cec2f34deec149452cf02b8a0b196a5ddf. 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/JPB450600717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe327dd7fe72658afdcf6473e0d6eb3e637a085d62a47f97b5326ae9c4e0fa065. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T23:47:01Z), 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/JPB450600721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0ca5b009c8a8f1b9a2f3be950837020bf79cac864f4de60a6c6dcd550c2fc6c. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:27:26Z), 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/JPB450600722.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfae0fbc9ee2d4bb96f5532357a81ff66329a61b5dfd90f34cc346ce99c897316. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T19:42:56Z), 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/JPB450600725.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x034a2ba46104c142d4db8aa5182318b6ba7d433fa84821f4960832ebeaaafa18. 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/JPB450600727.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x709a3714f7fbd1b776e4075d608bd606aa09a2b5e002c4499f141b52de48b6fa. 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/JPB450600728.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b08c1c99310d1ddae986cb36333615db8c3190acecf4f59e8d44f08e08b81e7. 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/JPB450701120.
東北新幹線はチヒロちゃんを乗せて
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ec918bd2f9cd93fca4c655226714fcef543f5b5d547ee2d77ff57a1ff2dd422. 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/JPB450701006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e1cd1cf76b006cc00bfc0a5873a05ead4419bf092dbe09997c7916e910ae6e6. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/JPB450901770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8965c3c3efac803da7a83a313d88179be83f8cae8ab7f77d240d6751f627fdf3. 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/JPB450901771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6547e1e26a19f98d8d913560bb5d30f110f8242b4ca121c3316f2cfe0847a228. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/JPB451202904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a5192a797fd6e2de4750fd99752824a6fb7b56c2e07052f508d398c84074e0e. 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/JPB451303131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f18e00d28cd775bf02a4bc6f8924aafedacf377842c0f8436d43fae94a9be96. Chain 2 (Bitcoin): anchored in block 958617 (2026-07-18T22:07:13Z), 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/JPB451303132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb779183d7b47241039820f975649fc3e0c5ba8d1c7b0d3190f5187402c676c1. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/JPB451303135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x154c32b71ced39f3dc758b26c08b8f57eb134c6c5d3d55568a16e0b13171e4a9. 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/JPB451303137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7a794de12ef77c7f9ec89d2932009f1b9932560d7704b294e3504f51dec3081. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T11:26:21Z), 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/JPB451603935.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28f1c13aa16a40499e31e8d75afd2f92e68ae98b874e967cbe6fab508e3bc8a7. Chain 2 (Bitcoin): anchored in block 957805 (2026-07-13T04:34:37Z), 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/JPB451603936.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0349c327c0f103433f18efa2ff303c17a3548e990143b1ac40f5f36403ff266b. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/JPB451704356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9714320c837c844cb7e6624f675375b7425b77099670b65928e62bc124d99a2c. 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/JPB452005525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87998eed614f93d3a8cd1bacd0bf6981d6c691559e0fc741395a4da185efd870. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/JPB452005526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4c50ad1f798f22d290b404b13da6bade06efa9ce3970e8c7caa1aa5658c811e. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/JPB452005527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca203be93c0507bb573801087d30427557133874fe249448076b3c61afb62c69. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T03:48:05Z), 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/JPB452005533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b99d14b41e92f0390b4df41c9455f92cea5315167a29235d9ac5aa071c3fb8a. 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/JPB452005535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd653288bb28c5a9f4b68468abf771e9e159e27b3c62500923213697df7ca8922. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T02:13:28Z), 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/JPB452005534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe93590ac88547152fa7fa64ae8d436478d3ed533f46a1bad6c7fe74faef67511. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/JPB452406540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1a38eb23ff3b0a9ea7efea8f9ed92cf508e4c5a106ea4ca28d170a47bde7112. 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/JPB452406541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49763a37f79d0afccecc866a430c6a95cbb15884ce3ba500c403d4c36baa45cd. 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/JPB452406542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe47d83b1c63a4faf58c5d531946bead16ecf587c6de6f06a5381c3d60fff7c6b. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T07:45:31Z), 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/JPB452406543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd051bcdf06bd397820cc6eaf4be277b5d1ac8ed870f7890500c7b637596e93ec. 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/JPB452406545.