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 0x93ad58df894e177d2be4b092ec6456f1251d549516786b0cf85e718465d232c5. Chain 2 (Bitcoin): anchored in block 953592 (2026-06-14T05:36:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/06f3c374-7fa3-4090-8467-fa81c49bdbd1.json and https://artists.proofprofile.net/proofs/artist/06f3c374-7fa3-4090-8467-fa81c49bdbd1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Guilty Gear Xrd -Sign- Original Sound Track
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 0xc326ab478d72cff3d7f1dea1018a33a4e4851484469e1c8a8cf9d6c0413676f6. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/TCJPE1602039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7ff8bf637ceaea8df0887f3809f59f436cdf0f4552c802a93b7625b3548f09a. 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/TCJPE1602041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd59c3843f206146b34e8ecdabf294204cf03f446675740240b50546780996b31. 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/TCJPE1602042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c90ffdf53dbd3b9142367a020e81fe72f3e89c202f2431adf49acdcd05cac90. 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/TCJPE1602043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x526354c323ec7229e2190468c8007642a97b845aaf10f57e9e3e00293e4669d8. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/TCJPE1602044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13b4609476d37389b7550eac3ce052199024ad0a4845defa2a728275cf6a1875. 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/TCJPE1602045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x099383d201e70c8951dfcad2d9a6d5f5e200c9d303cb62cd6dfd781a03312584. 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/TCJPE1602046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f8363896a2c72e4a2fffb0719a444af368430f469973d4f3caf6901a73fad20. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/TCJPE1602047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dc6171ceb4df5c79200acab79e4936d605a5af69114184edd387202847e7810. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/TCJPE1602048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x268b595a69465010bc736f6313499e2f4293652d2512b322c403b8f7eaf8ec6c. 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/TCJPE1602050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc591bdc1be6e91c536ad3ecffaf78b92ed7789e3fc00b50e0d6029a2c054303. 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/TCJPE1602051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5344256b012ee508e59bccef9741d3ea19c8529ec2d670506d81dcd779a8dc9. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/TCJPE1602052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20a42535f307c6751b0a69c0e068136a25769941bf1defba22b9d57e9bee6201. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/TCJPE1602053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb7d8844c53fb3562cec5d5d7bf2c5a6307d813e24924ddc9e78f7afb02e8a54. 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/TCJPE1602054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4fd1484570371d3b525ca8afca03a9c20881233f10098d05bacedc2c4eefd4a. 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/TCJPE1602055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc52d9cda4f4c86790e19fc7fd160583f6cdab9c58b4f38e3b34e58b98d13b7a0. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/TCJPE1602056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b9bafccb13af676b3619812453975a1a000bae3249d48af6947a998b7bbb5ce. 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/TCJPE1602057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88cf59709305c0f733aed5e2a055b2ea9c10808497a7f51ee90b6de3092841f0. 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/TCJPE1602058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05aded0410c3b255fc03dfde416abb8eb86d0cf445a9fecde080e74d15d10540. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/TCJPE1602059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5f0418c757830418d68518b3342c6ecc22717d6dd3c3e785b3771fbd6a91e60. 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/TCJPE1602060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee1be4a929edeb2a19d249f4b11ffbc76dcf65f13718a0384972f23b76f70696. 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/TCJPE1602061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7d104b7fe62854046a2ca3ab8a69794faab0429672eebb77255b26c0a028737. 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/TCJPE1602064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x017993ac780927561d80117ad20aa2c289f37e223036f03edaa37aeae8954feb. 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/TCJPE1602065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03b3ba8761498bd21a9f2b62b5e19c3aeddc128e7e02cd57c92cdfb991ffb3ce. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), 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/TCJPE1602066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30044c8feadcd7102685983f50d38f30bc7bf1f6a1b76aa8e55777205af364e3. 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/TCJPE1602070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee39353481a0c31075259c67d5d20c7afb48eab6136ba770f0e29f8462ba3d26. 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/TCJPE1602072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b23758b63ad399367748887f34951ba4634ce711ee68dad7bcee626a902b8a2. 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/TCJPE1602077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a7137ae1b45754feeae0d9a69b2c92fb273515fddc30703649f1f8230ef2861. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/TCJPE1602079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ee9ab47c80dbee4f8ae037da159ddf031fefa83dfceccc4575169284b7013e6. 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/TCJPE1602080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x247f59a9a5d1b7546f22da89b0ae5fd90a34bf346c6beffdab261790bae112ca. 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/TCJPE1602082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d1c76aeef8834017f4d892cbe04205c5490d317de598df6b7de87fa17d326d8. 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/TCJPE1602096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaac2d787f103b4b9b4c99bf0a41516d25620298cc058e4cf250b2a8a8821bb4. 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/TCJPE1602115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30a02e8511662b650fcbed50e3e2648856633d68f9d3d8c85c5ce06d811411bc. 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/TCJPE1602124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfa7f735e535743739063872bf4f2f8a253d42e94a8ab2ff99916a0f4dc8df75. 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/TCJPE1602133.