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 0xaba222c31e46605a84315786b63487874a69eb321d14592df15c5948b0166190. 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/28538b12-6252-4863-8789-83406a34d267.json and https://artists.proofprofile.net/proofs/artist/28538b12-6252-4863-8789-83406a34d267.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 0x5c04e10418fcee15dec7decd5679a59b75d1c11961953b8c318e53f1790e5383. 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/QZHN92311101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d29fb0809c8cec6698cc388453a118fd7e5d94a511676645730eef8be21e037. 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/IL7532313546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x156aa08847260c94c754a786b07b21532f7875e839000487af131318145e3736. 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/IL7532313547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6d02dcb8bbdfcd7e7206b68832e4736d27bf1c379aeb78da8b3403f5756dc4c. 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/IL7532313548.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d730dda8533b3d3049d24d4f1a6c873769f27714b42172399d416754ee9f747. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/IL7532313549.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a906af1017b2ae548fad27749be3c8dbd280c9082232eaf94f74d590fddf885. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T11:41:42Z), 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/IL7532313550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61c75f85329443b9e9ec3c530f38d4f723c8fd1a661e914da64e01f7aacde0ff. Chain 2 (Bitcoin): anchored in block 958734 (2026-07-19T12:54:58Z), 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/IL7532313551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc03c2db299abc15b6139b58cbe5b95192e2b38457ab05d35e144615dc5f8072e. 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/IL7532313541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47b02d64052be23812655fd1c428d0fc50cdf2bef1f022aa0de5e772a6b93284. 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/IL7532313552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18c6e5951a04a309dbbb0e101fd9199269961bc2d4a6ec8a35859e09175737cb. Chain 2 (Bitcoin): anchored in block 958969 (2026-07-21T04:58:13Z), 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/IL7532313553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4757205bb34353100f82ea53962d76ec6aa4fe3e585d3d075a4e032f1fcb7b1. Chain 2 (Bitcoin): anchored in block 958185 (2026-07-15T18:19:04Z), 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/IL7532313554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x693fd228c73b8d1b34c97471032840fb1753aa14e1a5791e77602bc68360424e. 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/IL7532313555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69d9136e5552fe32b01962b72fa398181f80ab084f2988f863f4cb4f09675e72. 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/QZZ7R2430016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7144573260de49da2e2e902e50fd70e43b6fdb79bffef6244cd0d6d5dfb77bca. 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/QZES92588166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0522c2f5a3c66bd243a6cfe7f4c0e348119c90ef4f9293bf03afe7dc2c476b9. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZRP42586778.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdf9f24ffab866b4234e65eff425f727bbfbd09d9782e9a252b0f768555716bf. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZRP42586779.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a9c785abbde9c182fb68f438bc8ca52ecfce1ff420b1cb41352380d73e51598. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZRP42586780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x902aa269748df24b874bd802d38bfba09bb8bcd6005aed8b82002e5f52bb86f4. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZRP42586781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9cae76cf81937c93aae33cfe371b6ee63f10ceac3dc29f6725f6e106cdaa0df. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZRP42586782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0005ca62b82f8583f46875ca75657be1b9f6efc4c2d776a8cef5b91e1a828b34. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QZRP42586783.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7254d71d3007b4fba8c9b4e524b9a91ff7ca8a0e8ec02997f7df2cc085e9ce24. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZRP42586784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba005aba027ac66df0a62e699e818f52abbcf489caa9cd0423e67ced180b9d55. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZRP42586785.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2999173ac466da06964719fab507139d300196100c7b931ddc9ba0f9b2fd8df. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QZRP42586786.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78cae8e040fc5ba2cefd49d1ede9d09c9f33ba28bf258382d93747cb5f2f417d. Chain 2 (Bitcoin): anchored in block 959134 (2026-07-22T13:34:27Z), 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/QZTB22215616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd03dbefdd6a01963c0df87a7c96352df711dd11132b60bb6374dfb9c0015f198. 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/QZTAU2406132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0699313a065b976542b1a0d329390536bcbc0b973c88f2dc35a0e9232d13258d. 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/FR10S1801513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72ee1213451c546889662ff8fc959e3f80d2ad2c061af4b1ffdc514845eee95d. 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/IL5842446932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x476427dc7d8649d061eb707507081e2b593461d5e09808bc9a03aeece7995f31. 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/IL7532413692.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b6ec0116298abb3304a3c715da9d379bfd6cd2910b5a6c0aa29bef7bf65c5de. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZHN72470585.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x672cf0be3ad35c2d5a4a5cf1c2f77c3f8200a1c869f34c5d1dd7f29fbfeba00e. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/QZHN72470589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c26a8633f7ddcbcb88858dfffc5fe0973bcf53d2e7fc56b13a249d0baba0408. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/IL7532421563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d8040d222098b978fb5f56d6175db7da2e4f563feaccde735bb697e8c7ea856. 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/QZNWU2411135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e9cb40376242bc10dea260e696453bc5da584d27ef7643a8efa0c19decb950d. 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/QZK6F2237738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c854a2669bfeae5eebe8a9bdc0e05abe755335b97b793637c94a4305b88796c. 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/IL7192500291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66cfdca642bc13d3e08f616e2d5c04d3a1bdbd61f58009c22c668fb7fa44349f. 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/IL5842449326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22715ea93b459e29dec974ae41029a908412aaf76d15e8ddb0fdd204085a2a8c. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/QZK6L2465596.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9426b3afef95321af4fab394103199345f2c2be61503ef72afc97f912f6c8614. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZK6L2465597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb612b0a2a9da2e98993e4ddd11230ad7217c06b026b8cac788e16572ceaa3d9. 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/QZK6L2465598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4423c104244bbdae50d1f335d67e2edd0488dd71a7641acd6e90ec3de8b661d. 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/QZK6L2465599.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x888fc19b1e351b96d03fe5032ef3a8f950892a60098a72323f5ffd07c008628e. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/QZK6L2465600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2eeb73fca5adcfabae29aeb183bc39713571ef2d71168bb433e25600e7b8d903. 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/QZK6L2465601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10a964c54b2ca9d96f10bbef1073ac8be32d63506fbea7b7e9ac4439be8db8d9. 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/QZK6L2465602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa3af24315d4d8def3d24ed06b83f571f1a40e197205355906ef7f0a2ab99fca. 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/QZK6L2465603.