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 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 0xdd9fff4c22c1eba1839a207e487b23180ef300696c9ca80836568887b02d8c6f. 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/9f659e60-7b0c-420b-a534-1f0d4be41adc.json and https://artists.proofprofile.net/proofs/artist/9f659e60-7b0c-420b-a534-1f0d4be41adc.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
All We Need Is Love Remix Feat. Paul Wright
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 0x0df11ecbb30fa0b0866e2d2cb7c5583555f7df87c5e80a6d792af99f3a3dc0b1. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T14:09:34Z), 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/USN5Y0900001.
Bread for the Broken (feat. Speech of Arrested Development)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7cfa5a3c3f6969b1bdc777ec3dd06dd2ee353a5b5f42b7c3c4e866ee9bbd019. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/USN5Y0900009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70b720adc31804438aa532613d458f6e94dcdc6d445d99447dc286409bf89293. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/USN5Y0900012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d545da3b7ff03054655de6f229c8401b82a32edaecc67cafd3042b6864ae4ec. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/USN5Y0900013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f56c87d9200eebd56dba9eb8a789fb5a7516680ae6441adf1a7576531d735e2. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/USN5Y0900015.
American Dream (feat. Sonny Sandoval of P.O.D.)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde234426fc8a64ee61788ff415eb4fcd61ca194155ab19dba1efee73a2f681a6. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/USN5Y1100002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97f9c55e7aeeaf5b1fdb029d267348b24504809aa8322d74e21a647a22446337. 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/USN5Y1100003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x437268d90c4b824d2cef1eb1ef10215c1355415faa6fab39566602d6f94c5489. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/USN5Y1100006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb7e14f153be15a70d5e4efd367dc274bbaf4ac61492cb95f76a496c9bf90fdb. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T09:11:53Z), 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/USN5Y1100009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb05abfcadc1f185e59d2e35a2af05e2940892fef8cc9027973af8bae95f7980b. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/USN5Y1100011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x892b31f4c7e0f354688fb41093760ae2d6c708eaf889174addd644a26da33ce7. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/USN5Y1100012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x067a4139b67045323fb4a27894d0db12469c7d591de9afe2c7e5c53a52910435. Chain 2 (Bitcoin): anchored in block 956482 (2026-07-03T10:33:57Z), 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/USN5Y1100013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19f1093269fcd685501b29e197fcf5c81d711b3106c9d5444d512ee8ae782ea2. Chain 2 (Bitcoin): anchored in block 958397 (2026-07-17T10:29:45Z), 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/USN5Y1100035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb5602a9cbbe83c0772ced03089a6fa5495089d4a3aca4e81375cf1f542f9252. 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/USN5Y1200036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e91763a559c19af1d8254fe49b2356cbd24573c45628e21326c644589bdeb90. Chain 2 (Bitcoin): anchored in block 960185 (2026-07-30T01:32:48Z), 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/USN5Y1200037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x920f0750603fa9034025d2eef7930c7e129428ac7508e9d73ee2a5c7b2a171d1. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/USN5Y1200038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0c87c483b305cf9bab7f467619be2c9b06f8804b10431a283daf416fd5d7c43. Chain 2 (Bitcoin): anchored in block 960111 (2026-07-29T13:21:01Z), 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/USN5Y1200039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd13c01a29c3b29f65b07f10d6088071c69d061b4e237f91910314bf0e47ee520. Chain 2 (Bitcoin): anchored in block 957020 (2026-07-07T09:18:01Z), 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/USN5Y1200040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13d95a0bf9dbf40d1824f3e7470bc1d1af43411f8216848a14ad94589b2e3e7d. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/USN5Y1400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bf84f96a89473e0dda66c7d54837c2f20f2588e914031313bf1227a39a06e61. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/USN5Y1400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ee572b742d9533c18cda048b98416a9b69dfb311b9eee681ad6c730858f2fd4. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/USN5Y1400004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2104a5afe4f12829d1c20d289da801d1710052344f7ab9aec7fbb897d28f118. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/USN5Y1400005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2558fb1305f24b04cc65d918ec37b5d486034c39d68fffec3fcc9b5ca392f2b. Chain 2 (Bitcoin): anchored in block 958130 (2026-07-15T08:37:45Z), 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/USN5Y1400006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8495e90971f6dcde43cc5ef4fb584839f557389be5d73b1ada2a7d541b1f7244. Chain 2 (Bitcoin): anchored in block 958346 (2026-07-17T01:47:42Z), 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/USN5Y1400009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x309ee85a54901978b8ce6264513cc607244903e46bf9a0865e12ff023ba017d9. Chain 2 (Bitcoin): anchored in block 959013 (2026-07-21T13:39:11Z), 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/USN5Y1400010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c0d2b1c59289ddfb5aee4440091f036629eb4cf489617394078585e0655103a. 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/USN5Y1400011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1957fc04946e970e695357bd37d1da021da416e6c86c3da58ebc7cfc52a31ec. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/USN5Y1400012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61c7a139e22a0dab14d40c97e903f1fe58a8a349e72f96898c9cc846f30ef755. Chain 2 (Bitcoin): anchored in block 956578 (2026-07-04T02:23:20Z), 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/USN5Y1800001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x765a8f25ca263f74b2a05784786685301ac88763139157c4c03f6c3b0c65b7c5. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/USN5Y1700001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf262ec9a55ac601cc0573f36a1fb179718803e45de30f8480eff8ddcfee7e3be. Chain 2 (Bitcoin): anchored in block 956482 (2026-07-03T10:33:57Z), 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/USN5Y1700008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf85bf17f2a3b04a9ef2e2211bee17e4aa02c3819c265862bc3a8500d8f061ca. 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/USN5Y1800002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7950fedef58835424b38d0b2cce0248565e011c126a1811fc9f4e6921d0b0383. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/USN5Y1800003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5723950c87f923b12b70a86bb738355544eba2809d430a1269c3bd11fadce0e. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/USN5Y1700002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d59c918a2ffefc3e551712e2f1c1bd732597ace3c0cd0d66c85e23120c9d1a0. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T02:46:47Z), 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/USN5Y1700005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fd156b8d914d911ee82cfec003ec935ca87143124cf190fea584b2100391762. Chain 2 (Bitcoin): anchored in block 958639 (2026-07-19T01:18:30Z), 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/USN5Y1700007.