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 0x8501aab5c37b72fc62c51ca62a11b34904db20d81dc25604fc8f450068683b22. Chain 2 (Bitcoin): anchored in block 953699 (2026-06-14T22:00:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6e0d9cfb-7f09-4d0f-b380-fc33f370fd94.json and https://artists.proofprofile.net/proofs/artist/6e0d9cfb-7f09-4d0f-b380-fc33f370fd94.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
In the End Thereof… Are the Ways of Death (Remastered)
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 0xae17677f8faae03ca0a1b76792830f896b0061f8b680442464d2e6928c309675. 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/USCGJ2243766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50d87e47eac9ed4c3d1b5bd5d72248ca1b69170a439c8595c6e02cae5bbbee94. 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/USCGJ2243767.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92f0b0827d6c84909e1e6cf768d1813f7662766493b53d1a2f3770ac32ff2285. 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/USCGJ2243770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfdc9507a7dbd425a18a7d03bc536bb47894d6e40c8242ae892c133851d84d79. 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/USCGJ2243772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9037d4433bb05bd74256d3804ba01d97e0c929fa1557fdf002b4fbe350833308. 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/USCGJ2243773.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6ab5581e89e245d0712c8fb0b0ce83926b6fdd33c6723d6e22c9639fd3555f6. 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/USCGJ2243775.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebeb650ed9a8764158091605a2371393185508e27630acc2a07f2a9089289786. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/USCGJ2243764.
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 0x35924b520333fede20ad500371b038887089a8859e59fde5fcde5d9d09de2c77. Chain 2 (Bitcoin): anchored in block 960305 (2026-07-30T20:14:59Z), 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/USCGJ2243765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34332137fed4f28880bd445fac3857e3b4e048a3073fa30545a204d7995e6e55. Chain 2 (Bitcoin): anchored in block 960381 (2026-07-31T09:50:11Z), 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/USCGJ2243768.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd075713cfc3addebacdfe41a8c091a6632be645d1b74ba5b1f3fc216280fe21. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/USCGJ2243769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb187de41ad4d67fb38f9ddda5a7aec69741ab8fd5d6442dfe18117bff87167c. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/USCGJ2243771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5567e4f892d17ffb58684f34fb7d0aa1a33f25dd82cccc15ffd61ec0ea82a497. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/USCGJ2243774.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ea92c410a872871f570a8379ec40c6edf244f2f5c28a4962aad96685059d2f1. 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/USHM92290857.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6ac6815e63769bd193f8d0240f1752a8f924dfd35cf11998e529e5bf9e725ff. 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/USHM92290859.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x963bbae25d76e6b524a9f82537f77ea02feb5e9beb46136e3aea574409a79e59. 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/USHM92290860.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf25811c6cca7b3e65eeb33ef60d0f4024ebea5c7213bec79374dc4b87a03c9be. 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/USHM92290861.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6619fabd3a10a82594636ce634f1e82e00cb99f4d62f5c4055dfd853dddbb606. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/USHM92290853.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e32e7a46988101020c3e59648e1052f68ab3015f4cc3ed89344e7423907a5c3. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/USHM92290862.
Legend of the White Spider Assassinz (The Holocaustic Era)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34c4066ce717d7e249382618db207ec513dc2da523fba344b44f4b8e14ca26d9. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/USCGJ2590942.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01993296cf2d6783f835b5a27c93d32c821559ff4663cd8a53d22bc1b25f9aa5. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T07:01:59Z), 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/USCGJ2590943.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5863ed96a3bd42ec14fbea6d8fa5c73c2d2ccdcac0a81414d89c98c001be354c. 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/USCGJ2590944.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf21e9eb1e91b79a3f4b7429dc8b2710d9c7a39e4fc299107e91b225376d5b27. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T18:11:02Z), 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/USCGJ2590946.
Symmetry of Violence (Bronze Nazareth Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb287be4c3f8fbd696454a9a6981f32b9fcb60037c62c7f596bf0e043b0bf51fa. 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/USHM22147792.
Savage Sanctuary (Think Differently Music: Rework)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeba736f452cf66dad76afe047532a9aada10c78014104bc9f52aa143a1808464. 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/USMH92310816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3120a325b187eaae36a2ed32ac698c27b7ca975de88203a5f23a103443239de. 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/USMH92310817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8171438295993e36cbe4bce1f2bc759f03856e38c14e666f0e06ab53b63eeb20. 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/USMH92310820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef56496c2e696c678902202c410e6dd6934650711226aa4c517c2257ae920b9a. 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/USMH92310822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea21d58e5c577931a91e29185822555f38586cbd8e9acf4bcfa5ae3fa4b3ff08. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/USCGJ2374769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c92e1b8f9874ae80c26b8b9edf20cd4d42bef7211734946d38f5d1455574841. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/USMH92310815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaea86d0ce89e16bea96464b39f605ec8aac144e3e7874f513d466e7d0336ec0. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/USMH92310818.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c9a16ef068a3314e41cd0ba2b4e566dbde93d14a80d139c528a1b0ca6dff7f0. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/USMH92310819.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x914e4f190c126f036e42da80c77fba50d76b7f01ff18ee661cecfc32251361df. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/USMH92310821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07617750d43ec84635f3d39659f46c1fbd9e48cdb49b94b58cb4eea8e1767d85. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/USMH92310823.