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 0xfb169f1fe57b04d5c2a9d04601ce4bc4cd841e9c606370f7e1644f0c6d4be370. 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/9e9ffd6b-6c55-42b7-a9c6-044a2e91bff3.json and https://artists.proofprofile.net/proofs/artist/9e9ffd6b-6c55-42b7-a9c6-044a2e91bff3.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2fd0550e9575049b6ced279f20f0c316d97c2d3c246b885bace20e1889b17a0. Chain 2 (Bitcoin): anchored in block 958812 (2026-07-20T03:24:09Z), 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/JPY200101528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f067d47000f17deb254560d85cd0ab52c2e18fa202c2f26a000503222b1789b. Chain 2 (Bitcoin): anchored in block 958903 (2026-07-20T18:11:04Z), 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/JPY200101530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd0713a2d2dea151580e3d3b7723b7e9be89de043c3f8719a7c5240516d880aa. 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/JPY200101535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9792721de28041f851d7a4f371af71228927934c67939f9d750500098f9d507. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T16:34:13Z), 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/JPY200201510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fb62089e72dac32e828fce5e061c746174166f8fe3326eedfcb816c3588b3f3. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/JPY200201518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5042c6d8284df89009ec61d40cf509c91a75e29ce56387b071eba9fe61f52ae. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/JPY200201520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa36613328c6dc0ec10645010b02f43583c5dfd65825025eb37cf1722ba595c51. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/JPVI00521770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23cddb086e89c7bb1364b23bfc9ff3559d2013f6f7e93f6b02c692136856dae1. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-19T22:27:09Z), 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/JPVI00512770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc26702c9ae84377314764f2e8e90cc45b1b463cec1cf9e6891e6ffb39a06b774. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/JPVI00614060.
BIG GUN / 炎 ～"Outer Works" Special Online～
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda931a3f4d80b03268a2dffaa67bbefca5a225538d5812937f7ff7d8c77a71a1. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-21T21:31:40Z), 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/JPVI01017010.
RUB A DUB WESTERN feat. BOOGIE MAN, VADER, ARM STRONG from ラガラボMUSIQ
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1421249cd56cf28259a6365fcfc1076beaf5586915a59e54b1b4dbaa7ff5fa0. 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/JPVI01017020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57c16cd3b0057b7ccf763afa7359928142b465a82207d1a711928c0d5dcd7369. 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/JPVI01017050.
ONE BLOOD feat. NG HEAD, PUSHIM, RYO the SKYWALKER
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfc310cf15f62f93f5569661be8fea8339926506972e6640bfbe0a9ea4904d1d. 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/JPVI01017160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3c45b104a92721b2398b7aa87290ce30b0b93a167192007b4a81116eb60d2da. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/JPVI01017040.
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
NO WOMAN NO LIFE feat. BIG BEAR (Album ver.)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c76d828dd8a2e39c064d6f1152472a74775580391f68929655857305ec8297f. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/JPVI01017070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59275ae38a2a1bea3464cf605fbdb33cc236ba7c29e711e925ee9263d81007de. 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/JPM551300066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f876cf4dc7ef653c822234320f3b27ac543f7afc8a5af1899761acf8c87ace5. 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/JPM551300021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd87f468ea0e5e16fd2045930dcb78b9b21cb83ecd3133a18f4e9bc91187b43a3. 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/JPM551300076.
エガキカナデル -mural10th anniv. (feat. HOMEGROWN, JTB, PUSHIM, RYO the SKYWALKER, ラガラボMUSIQ, SHINGO★西成, EXPRESS, 寿君, RAY & NEO HERO)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dff0a0fbbb8bcd246cb1d7b1bb4e6ae5f29f93e4ead863d9ad8f2e8bcc9edec. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/JPM551500044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57d9346a71b3782c6a17bbd2694bc9335e719c5464a8c79018fce12f4efd4e8f. Chain 2 (Bitcoin): anchored in block 958523 (2026-07-18T08:54:12Z), 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/JPM551500046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4382b9324ccea586cd02612b373de5a691ec39bc0d6c20cb75d401baf4e2ffe3. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/TCJPE1697575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc035d442c2e76e646bcdae89869c500b338fc46838456a0a24c8070003bced02. 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/TCJPG1737137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bb43a0c40efbb3cbea574dfefbff69aaa0722a3667b1002a5a8aa4c8d7833a7. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/TCJPG1737139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c1581a589903ee076d4c2affe7972f23aa4524441934832ccfafe4ede4cbcda. 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/TCJPG1737218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x233ffa141ff6c64ba4742e42c29ba8c43e8f39eecb4651b784403b21c2275da7. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T05:10:40Z), 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/TCJPI1821425.
ULTRA 7 (feat. JUMBO MAATCH, TAKAFIN, BOXER KID & 韻踏合組合)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0eafd00f9c36de2b79b43343c9c4514534a6adbbb5aa1f07857babe330fdb12. 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/TCJPN2018000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaac56c73b0ca4a71b3580a4f2238fc8374b11dd53a288d830f3846041582191. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/TCJPN2018023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x827491e998b52d6642a8625afc5f95464e71fab2098e914201402d6d63f8f1d8. 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/TCJPN2018035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3246f1b2433903ad2481124c29889ceae69df582cade7e7efb45c02626abfd48. 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/TCJPQ2150631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c198e2c6c9be07ebfd8f87a81e4f64a13cd11e3c714110064153da79279d7df. 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/TCJPY2336709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81d49b12af9b963297ac875cf8977e9d78a7895888c2623739b91776bd37b2d2. Chain 2 (Bitcoin): anchored in block 958865 (2026-07-20T13:03:06Z), 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/TCJPH2547405.