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 0x4d2e55f0ccd4c44800e4819bb3e5909af80fc118fd1d7f6443ad83147fc4f9da. 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/0b3b8ecd-4791-4e47-9de0-0726b3f87b5c.json and https://artists.proofprofile.net/proofs/artist/0b3b8ecd-4791-4e47-9de0-0726b3f87b5c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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unpopular opinion, Enough with the lighting already
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 0xe391bf6feeb06e9837d580dc39872f895ec086c8d002605cbad83bf4b8fe07cb. 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/QZS642278913.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4f96c4c906ac0cc84d00967679fcb2f380971e81fdaea480e539da3237aa0e0. 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/QZS632222049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x318acdbc262218cd63beb59f4a2d69474184d1436df71037986cb847729e30b6. 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/SE6XX2269619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d75b1d83687a404c0e55d7e3bb54dcf6d90bcf8c602a752fc3634c2e8cb1534. 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/QZS662267390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4087d1c22e2df11ae54c6b0c9b0fff68666d6bbbbcb1b7a714215dd2a27dae6f. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/QZMHN2327293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x809bf85f4a6dd98e1c9c6b273c61f0840530d6b22aea4e79baa94c6af0137eed. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/QZMHK2314207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc34a29fd53bc0ccaab1aa0118cdf67408efc9ba3a859964251f22539fd1208ba. 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/QZS642357425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb25e19e1ab806f5b826f214f9cb97c6c653fab51711ae96b818ff5b827efa5c6. 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/QM42K2328553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcecf1d8eede950274c0d26185b385ae32202fad9576f15f460e76cb7473d6bd6. 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/QZMHL2376455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b112a525a7657b4b3f53dbf1fe16c3b563e2a215cba9e733469798e68fb6f31. Chain 2 (Bitcoin): anchored in block 958658 (2026-07-19T04:09:09Z), 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/QZMHM2338232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0484251b8b806f5fce22cb2dc0991bfb574c9c14836be8865fd8066cae5699de. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T21:05:52Z), 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/QZMHM2359693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb80ab414ba98d0fc521e698bcea5ccb67607eec382719ccca87a51c2ac6d5882. 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/QZS652381316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0634d53a255f5802f32a0ddf61f657ff98d726676ced1e1d7654c110771b883. 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/QZMHK2327403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ee142cbbc913ffe35c8bcafd3c157a25be8c0eb040813f00413f341060afa39. 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/QZMHK2369614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7aee2871102bb7c8e159e5b95d37ce14930ca673de70561cbf67a9a89a0b6c3. 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/QM42K2447366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63e87413c7c0383f3c6d79f301251995f643cd49b668e99ba724d0528762bee2. 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/QZS632385648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5f6850b2078b28d694085a7b798d5d5c95bcb207bb92adae2d5bbdea3db66d4. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T17:53:56Z), 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/QZMHP2452358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06eb3bb98e4a2e2de4c24a4e839be1b819ebb3ed2ed4154ea1235938e3efff49. 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/QZS662457667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3f4df1b788fd425aa56ab6e979cd4a01b4b1333966cfce4d099c09c24306ebf. 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/QZS662444187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87170270860623853762ee6cf93f7ec6e085e120ff5b6b7e257b860207c9cb97. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/QZS662468839.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e08a09598a09838dc1051ad3d7b49c497e76f79237464ff8ce1fa0a973a98ce. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/QZMHK2458492.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e847150778d6199fd3d8f069e3c0ac7e85231e06f180af51a3d6e17ec39f342. Chain 2 (Bitcoin): anchored in block 958535 (2026-07-18T09:42:49Z), 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/QM42K2452426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa367fa3ad6365ae2a0fc3df7a3ee637c54a88aaa83f9037450acb64000b0d870. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T13:14:05Z), 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/QZMHL2418963.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50062416944d1bbee17dea40ae7ee69da5d7fd6beaf98d20b4ce4e55000c5693. 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/QZS652471776.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf68e247f32e6fbd5af3a1daf7dfaeecdd639dc4577e9e351d4cd50124dbbff53. 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/QZS672479539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x370cbd77e8cd8554d518686b8332d2cc4399ad4f0d41b8dc62700800a5e118ff. 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/QZS672453432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19fedd0478109bca771444ac425b8db3d3241a84d0bc156c5a7b5959a6be1cac. 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/QM42K2470991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4fe3d201de8a48801d78f1d7d27621a387f864966513118cad09c68ad6364c5. 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/QM42K2469262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43d86c1f77120734b42d29db95d6d146da98df3e6980d153192be5b9022739f5. 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/QZS642478849.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x830f32eb012f63ed4253e5bc63819f966e7f5d86254f6a88b52fec59f000fb7a. Chain 2 (Bitcoin): anchored in block 959069 (2026-07-21T22:32:59Z), 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/QZS672464350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e6423ff103bb06c47df3d4dafc911e4d2b3456386d4fc23228c6e5b27848de0. 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/QZMHL2412083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79eeaee9f19714a9a5b8d2f7712fa027b1d6ba5a0b55ca0a7905bf8a6f0d6f1e. 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/QZS652457525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b9beda4a835c33fb1377c2e0bca8f7b1fddc66ec91bf3f737e8fa85461f56ea. 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/QM42K2413618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75a9b73a072d0da59d7cca2ba2c96cca20d1e35bc5e5b89faf93022ab9ad0daf. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/QZMHN2473464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f4521690829b67bb15b48707fd40593665a7b936eb9a119b8813f5902e9c6e1. 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/QZMHM2547474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2adc0b701047756b17bdfb2a40147a10db0a137ca32f14895fefa791868bf9b6. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/QZMHK2510126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e5a902059d18926bdfdefcb87b3c186d539e8533f9e6bc1001ec4cd3d732ade. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/QZS632538650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7d3ce10d40a39d07884fb66b17f590ec7910b36e3ca4911ba327f4eed17a94d. 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/QZMHM2550380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ddc8818bda4c121f2d82e8fec157fc15abc5dd73411e930986eb0cddf0d297a. Chain 2 (Bitcoin): anchored in block 958380 (2026-07-17T07:07:02Z), 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/QM42K2590820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe37f84a6ea1c70d012be1f1e87299b46d116fc2107742b79894be509b2d86932. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/QZMHP2525700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28df858d044727352fddd452ea7fdeb1d9372cf45600311e5f10ea37d53a6bc8. 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/QZJRC2514970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56156cdf2f3672153acf03876fc007abf73f1c57c7a74e89f2ece9cc27810bd4. 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/QZJRC2591110.