XXX may refer to: Arts and entertainment Film and television XXX (film series), American action film series XXX (2002 film), an action film starring Vin Diesel XXX: State of the Union, 2005 XXX:
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 0x3db4d0aaae01172049bf5d015854b76c91020fe682f8b22d684f5ae68bb2467d. 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/f2f156fb-47af-47fc-a92b-8d0c98f5131e.json and https://artists.proofprofile.net/proofs/artist/f2f156fb-47af-47fc-a92b-8d0c98f5131e.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 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 0x2d894c8714305e9dca4b674de870698886bfa08e9cc6d65abc33300f9c3b98ec. 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/FRU701601013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fe89621cb9a5ce0f55324b27de5b90fd35de51ff090a8a6bfb9580042071ba3. Chain 2 (Bitcoin): anchored in block 958695 (2026-07-19T07:37:00Z), 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/QM6P42140115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca783647d1ae08570d896733453b5f4168d59a7ae05dca5e8cd706184a2d8d34. Chain 2 (Bitcoin): anchored in block 956396 (2026-07-02T21:01:51Z), 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/QM6P42140121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fe89621cb9a5ce0f55324b27de5b90fd35de51ff090a8a6bfb9580042071ba3. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/QM6P42140115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb06440c983c2b17e7189fc8e39aa33f805d4f5c6a8da3ce7a0fd7d56503e0cc. 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/QM6P42140116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa4bd253e666c702a46b0799593a8cba5850e5e0db922f6ff7b244600ace0547. 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/QM6P42140117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7afadcbb149a0a5d25c519bc040826edc40f6c7d36a7112c31a60938e4216d7. 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/QM6P42140118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86888ae77f79bdf9f3754373c766c6a779192811238770602dfd720a6a189c8c. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), 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/QM6P42140119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x721887db5427d8a951c2329493a4bbda1c23faa4409d1c813ef9161648aae160. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QM6P42140120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a26939543807b3cbb3fa52ac1f9a0c16947ea8d8d4f1c0f7cfc8a067db35b29. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/QM6P42140144.
Bad Guys: Vile City (Original Television Soundtrack), Pt. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x194e09d6281863b61daee5653a1cc161f6b72d1a4f8144f21951052e39dd4350. 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/KRA491800005.
Bad Guys: Vile City (Original Tv Soundtrack) Part 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa28859ee0c874d47c1c84521271624f7addc26430df6374bc930851b2b43d409. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), 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/AB12C3456789.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x050b7d7ab400eebef7f4622336a4a4546b4cc466f251508d3f4450316e771c83. Chain 2 (Bitcoin): anchored in block 959076 (2026-07-21T23:41:40Z), 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/QM6P42140161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fc4120af2ab2e39a12c2dfba6445c86b75b3e0ed75d753bccd2e71c12806f75. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QM6P42140159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d2f40f313e33712dce5745fadc6f5959f59e6ada61656b23fcf7f6b852f28f3. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T21:20:45Z), 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/QM6P42140160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x050b7d7ab400eebef7f4622336a4a4546b4cc466f251508d3f4450316e771c83. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/QM6P42140161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f8167c7bd8fb0760f6aadecf5e88dd44fa6fc82a56c215ef117a0af2cf642ae. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T21:08:39Z), 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/QM6P42140162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a9994d56a7310df87b5fe497093fa2b8a792c0d2f20aae6dcb81681d92d0810. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T18:54:07Z), 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/QM6P42140163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedc0466f35f03c943d02de1e636994df0257859e4c2a80be80443d5013487201. Chain 2 (Bitcoin): anchored in block 958756 (2026-07-19T16:12:29Z), 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/QM6P42140208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7aca1e25ea2c73f60ca117a7b178c318cbf22b26cdab416b1613b7a88b920cc. 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/QM6P42140209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa79ffac869c039d5c88bf71e28b508db55896b6b167eac5909c0c7ee6ee13c70. 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/QM6P42140212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7976fe21749ffe58197b9067048b2bbe655b3bf79b40f7a5ee4e8813ddd3bee. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T07:48:27Z), 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/QM6P42140213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe93f70956bbd413efd1b42751b7f13a2181135d4e9662189a07d7f560f106741. 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/QM6P42140214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5668cceac191f39908fe336108d6600f9c740f3eb72f678cdd353c50e7f6217b. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/QM6P42140215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c74bb378b2fa4a658688610d2e0a6439d6f3ea2b655db301ee95545ac1b9728. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QM6P42140216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x359f53d57540981f90ddbb7b5d3c4f615714904e42948724868bb832c2351b72. Chain 2 (Bitcoin): anchored in block 958788 (2026-07-19T22:07:06Z), 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/QM6P42140210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95358f34d70e8785aa24f20b4f47359eeaeac754f6405d399a9abea28ea4e13a. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/QM6P42140211.
Bad Guys : Vile City (Original Television Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54cab9c956110ebd6c4afd90cf7dd320bd59967a45a3e5a5612cdb3ba854c4b1. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/KRA491700425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa361ff34b5115688e9be156fd92c5a36d78b11582706173636af8af16494f2e. 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/FRU701700043.