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 0x1f5913f660279c5eca5dddf944ebb43c8fa92cebbe8e68a7d81d645beaddd083. 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/d567ab3b-0a60-42ca-bfd1-dbcaec5646f6.json and https://artists.proofprofile.net/proofs/artist/d567ab3b-0a60-42ca-bfd1-dbcaec5646f6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Nisshoku Natsuko 15th Anniversary BEST - Fly-by2024-
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 0x6200f2f54042acdba358860e619f0ede970afb30c7b37ef4dc1c3919b0921f69. 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/JPF701000901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27053ca4be621dca66f4fc37d23a17bca81f980c645aef7e950b85f09490f9a0. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/JPA961430001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19ab3dadcf441176838ed013d07bae52eaa3975b52d8e10ea93047b5e5da7cfb. 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/JPA961430004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54a88199383895d2109f769e82f1abf54e1cba7820baf92c2a612bd49b1f21bc. 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/JPA961600042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x289983bb65c00bb548397ff0fbc2943e1a601d036ac189456fa4ad8ed177ff54. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/JPA961600043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4638c85eb3d6caec43670b260104698f6202b7bbcb8d83cf619eccbb8bbb1600. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/JPA961700051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39e7e70db42809147481b07bd5d683806dd4e89f686940722b1c187600ce81db. 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/JPA962400035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97bf1f79bed9fb2519dbd0fac54c1e9f2f39c072ad86f9c08b1bbcbfe8685061. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/JPA962400034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd63dd833ff75932bb366dcc081e8abe1752d066b969d701ed6c3bc8e8e00c836. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-16T23:49:41Z), 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/JPA962300007.
Spring at the Bottom of the Dam feat.Sobs
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc92bcf879e8303604d3fe58aeb72a0c7fa5348387c3834914cfd4d8748f91737. Chain 2 (Bitcoin): anchored in block 957041 (2026-07-07T13:25:45Z), 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/JPA962300008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x522ff750371078a456b52203888bfc63f9e6057ce5bb2df8c79f5ec5af999a07. 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/JPA962300009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3ae082b34bd60d98243c24439399ca20be6c558e732c505df8865c1012435b6. 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/JPA962300010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77142db2a39e73386573b525b0bbac258b8c83d8264b5ce809b74623790dd686. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/JPA962300011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe78e6dfe9e02d89b2a491e274e73b50991c695f1febb99e55d12d2e3f96e4cc1. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/JPA962300012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x008345c96aeb1bcdc7e9926864ef2c393603b45973871311d2904db9ef2f58d2. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/JPA962200007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb33a2d776fb9b39e5c0e05ba22016a95007c085bce55d1fb0dc13ea412d324f2. 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/JPA962100127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80de42c50400ae36b5e41ea230d7dd692c8831b11d5c840fb0f6d159a39e50e5. 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/JPA962200009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ab9c6e121f60d68128e811c8eb4ff039b5582e4a27fd5695bb55716fd13a345. 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/JPA962200011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0d73cfe50a6aa4472d3d3e3ce87d8c0a4cf742a721863730a33a66a54bab830. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/JPA962100179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4fa7ac53494ffe6a847b244350b5a6a5de1667581983aa49ec73c5e04cc7fcf. 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/JPA962100049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fea81e204bb02cce4bb4d1e1b9f28f91bfedc95b423a2b9cdfd95b7c5d2c701. 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/JPA962100083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f4aa4427953cd6ae3bee01ef040f5c21544f3e5aa47a0e7e719f4d4664c7ffe. Chain 2 (Bitcoin): anchored in block 957067 (2026-07-21T22:47:45Z), 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/JPA962100051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b73b8ddcbf2ca471335cc3caeea39387525145cccb7a49281b42d140e7b2d18. 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/JPA962100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0d4d09db606af22a1727b2ffa03b3c0f519c18aa653085b2891b867a1b5aae2. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/JPA961800091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68f05f33a9653a4989be6952eb1363c3ec37c111a3c8409a2aa00e8288a67eeb. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/JPA961800030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe883679e24ce2fc89798471500785102940e4e3baa74a83f12922ba2007e6882. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/JPA961800029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4638c85eb3d6caec43670b260104698f6202b7bbcb8d83cf619eccbb8bbb1600. 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/JPA961700051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bc544f438570d0426503f94a74f365ce19535d3c89639837197f4df017cce60. 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/JPA961700054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54a88199383895d2109f769e82f1abf54e1cba7820baf92c2a612bd49b1f21bc. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/JPA961600042.
God, please, May the irresistible urge remain forever.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14ec8caddae5dc28fae36401b61e3d9af645971b161f1e93292197231ef2b093. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/JPA961600047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x289983bb65c00bb548397ff0fbc2943e1a601d036ac189456fa4ad8ed177ff54. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/JPA961600043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf066437d939539c091bf51328d3df1947a189116e7e5f2dd5dac7f24da3c334a. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/JPA961600030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d7160d8857c959fc408d3416724b5024e71df9a1bf4bff14b8c8deabe4502db. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/JPA961600044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac1acec6e8dfa97fd92a1ba4c84a5e9bbbe600887133620a7398dc93c0209cde. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-16T23:28:54Z), 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/JPA961600048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27053ca4be621dca66f4fc37d23a17bca81f980c645aef7e950b85f09490f9a0. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/JPA961430001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19ab3dadcf441176838ed013d07bae52eaa3975b52d8e10ea93047b5e5da7cfb. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/JPA961430004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe7aa65f3da3776a274aa26392475a94d414926be92e5dfdedec6de997f36249. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/JPA961430005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2048e027177dc41859092dcec37e2cc196061400e823f35379b1fc7ecbb6bfca. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/JPA961200267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0c34545f56d9e53469e5a4ba8c3822fe6c246d8ae567bcd0f3100f7b92ca344. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-22T01:19:02Z), 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/JPA962400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc92bcf879e8303604d3fe58aeb72a0c7fa5348387c3834914cfd4d8748f91737. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/JPA962300008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x522ff750371078a456b52203888bfc63f9e6057ce5bb2df8c79f5ec5af999a07. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/JPA962300009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb33a2d776fb9b39e5c0e05ba22016a95007c085bce55d1fb0dc13ea412d324f2. 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/JPA962100127.
December 16, 2018 Shibuya LOFT HEAVEN live