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 0xdd788678f72b640708f23a0ad1bd29c79b75fd681938b74fbcd515693bc9fb98. Chain 2 (Bitcoin): anchored in block 953827 (2026-06-15T19:59:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e346d87d-8b5d-4037-9bca-8e6f62a7631f.json and https://artists.proofprofile.net/proofs/artist/e346d87d-8b5d-4037-9bca-8e6f62a7631f.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 0xe294b899fa2033820db7e15f921d6bbef8d2348bc8b0e7be9fb5d2418d6bb18f. 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/USHM22147789.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c5c712aab9dc4a13f01a241d612e36e4a95fb83a3bd1db822c90a0574069382. 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/USHM22147790.
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.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02e3f08c9dbb62c5dd835b31e6b66953622feadf7b95fc43e099bb12f7a00a42. 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/USHM22147793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27a9112d06407becb6eb86cc0334175c7692bf8f97b83b58301a727d7fb93a75. 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/USHM22147797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56efca38469175976b24888910be3522bb5423b22deb82f6ea3bc96dc4ad8a40. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/USHM22147796.
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 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 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 0xfe2034ccac45f3f61b05d5811ffa2c7b214a74f4a864813df727710b4e8b103f. 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/USHM92493269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4567ce4d36b302db9b8e6b84130d5d6490caefc488af691a7fbc5b162205f0f4. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/USHM92493266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebcc73f2c60b68ea27ef0a22e6177a63077f88a9128455a62bdd84137b4960f8. 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/USHM92493267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf72f5616e0b06f3d725f84ec6d42a4b6c702b79b00421e76f9a9a6fce0649952. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/USHM92493268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98c2097bbdc0a16fb9cd3fb5b4efc7d9300eaa95ca7102308f474570c7731082. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/USHM92493270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1dfbad1b9b28c7f80e8b566a2285c7606e2c689ba5c0ab2e0eebdee77e55024. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/USHM92493271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5a95c430a79a4d9f691e724a61232c93a83f92e2a90e39ece5e5e66feceb1b4. 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/USHM92493272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0bd26b9d1fdb8c89b1cf0d7b2205d93dbef30d018674d42e476931337aff8d0. 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/USDHM2308339.
C.I.A. (Criminals in the Army) : 7th Infantry Regiment (2nd Report)
C.I.A. (Criminals in the Army) : 7th Infantry Regiment (1st Report)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dc7565921b85dde0a9fa66eff418d0d4a635cc5f1f469e20294699bee7fea3f. 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/USL4R1937562.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6da1898762cc02fa08f05592ce4725d9edde2d223213a7402fb041bee057ee2d. 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/USL4R1937564.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22cfe8cff57057e294dc031e95821432c2b72ad059e9774159f8e133a5372aaf. 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/FRX282477314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba4e6a591d1407cbd04ea61151fd72009e941409b732dd48022e485bbf41eae1. 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/ES64E2490326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d9a849c056cfb35219ec99e3fca2c1baffb964bbbb2b876fe542bb6b36aec8a. 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/ES64E2490331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51f8672ecb4958a9ab0de43e658a70e01bc7f68163201125e66d5bebdb7f96a6. 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/USCGH2047835.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cec6422905118703f4d90fa8cb9d78a27f3ce4ff962f0a9769f17169c6a6459. 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/QZFYZ2227238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c1ee4569ee6aef5a4490670a5b453fb5d1774b00d4eb74e29319483deb8ad8d. 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/QZW9L2338475.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99f28724977fa1e0bf104e36aa13de3808d309e150fbe1a57e8c5c64ffefc262. 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/QZFYZ2227242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13775c98d1b08baacd0c1694de9103ca0b5049434e493cf2b59924697d889ff5. 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/QZFYZ2227243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab9a3a63d4ceb7234f046d1b5ea66685a9c77322569e5f1c4cf9bb6c6612f9b2. 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/QZFYZ2227244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x716b73003162150edb4a22cb1608a22f8bdee09f26d3aa6a0dfcb9d69b054ae0. 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/QZFYZ2227246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb61a62d95a2838cb60f4cf023f4c1ffdd0ed57f267cdb525d1701f0416dc5258. 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/FR9W12432441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x375619e762dd2e5070692f1e1903ee78717c1ba0017385665df0e9f4ade770cd. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/GBRKQ2443278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd932dc10c1254d8c8362bb471ab1deb21fc6329a2f37c6777bc4a0e66379a8b. Chain 2 (Bitcoin): anchored in block 957055 (2026-07-21T23:25:37Z), 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/ES71G2027231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05ffc3f575f3356a57a135c7f844a4e87b786a9ae901ada755850c5dac9bee12. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/ES71G2027228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5df924f3ff506fe1ada90472706eec766094db0ea2f02b5c9c7029899f1a8e8. 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/QZFYY2427415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcb9147a676689d003a193c4e0b4dba796f95ec136fa5d9f4506fb0cba5d0081. 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/QZNJW2519726.