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 0x2ece5e31396898997611de292073b7659f5e72d2b6502b4cb5c6b5096298bab5. Chain 2 (Bitcoin): anchored in block 953674 (2026-06-14T19:07:16Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5b65b110-b633-402a-a4f4-000ed2a2b9f1.json and https://artists.proofprofile.net/proofs/artist/5b65b110-b633-402a-a4f4-000ed2a2b9f1.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 0x46aad44d74e8313c1306219cee56d491897ed4ac335bd3a2c4fadd7f4253e8c6. 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/US83Z2240354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68f0a4840946008d48a745c6965ae8c623d2ca7f2b6f24a7bfbfb60813dfeb01. 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/FR59R2129664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf46d5a58a5f54b49c42a1296c6753b050d6e15be978c1f13f65576df0c49b283. 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/FR59R2129665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4177da134207dcd7baed9160e65d83f71504d0aa95bfd1932320a35d63a1ad2. 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/FR59R2129666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde718a685010f365df8da4f98abcbe14c9c6fcc47884b3191a6f367e25817ade. 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/QZF8N2157778.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6f49bc432874446adfe3a7a3a3b973a87d811761d18fb271393a78a71cd3ece. 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/QZF8N2157784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc93d361d57dd6359c851ecfb98be8a0fa066af716df974e677f90fe20cf14d0f. 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/QZF8N2157787.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2f043485c5a829a368b976227ffed2bd14b595b68cc5bfe5e265081178b7668. 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/QZF8N2157765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd9e6a90cd3137ab67c66797d38eea21e59d5dbe4dfcd415cd02ee3e20af3b2b. 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/QZF8N2157771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99767985811caa38f1f368cae89619e6a6885a9fe833b8f9158bc8a9ead5bd11. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/QZF8N2157781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2080b2b5366b8e73b6d3ce99045b442885d54e32ffa420f240f4a8dbeccf8608. 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/QZF8N2157785.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18e29771157fadab810f825d14b23c84bfccc744936cb356bd46e5d9957d6342. 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/QZF8N2164643.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb96159c2f39f095a4615b317ab234eb3f69d12382980b69fb2a08f0062a73856. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/CA5KR2136266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c15cd51b078ed415d021ccf6dea6aadf5a26142b20810c0053950f9fcfba3c8. 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/QZS652413799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0df606bad8cb53248ec64aed7d1e7ea6b7b8d2711ba546bba96516784b620004. 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/TCAIE2476815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e2d681abd2b5acdfbf3b83109a53f150e5c0377a1dd39a643771e28a39d9185. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/TCAIA2416133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5c2c60bd940d5e249428f53bee9e7f5491f7c0757383d4188857a4339b7c872. 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/TCAHO2317696.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01cebf627ea2626a8873721c071e8aeb97aa621cfb616fbb1574b9a8ad673eeb. 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/TCAHK2388017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dfa7a431400fd3f441b16f78a2fb15b50836e1a4ee2babdf775a89a95c1d46f. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/TCAHE2385448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb97bede2886a03b82c250ace59b7e2c1d2ffdcb8c47e864a4a25e56fda59be32. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/TCAHB2390921.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67387acff32205830d05e3f062b776d53e580fd492a2fcea4acec6cba95e2acb. 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/TCAHB2390865.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3876b9d10b6961b0d3a841d97d54145d6a4ec765d18cba7c69cedc9229be0d73. 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/TCAHB2370203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe90da6e0fbd7c840d6bebb13428f515ce996266454b5bdd711953465dd9ae1f6. Chain 2 (Bitcoin): anchored in block 960485 (2026-08-01T00:10:46Z), 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/QZHPJ2275917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f42fb2919b1a1702c03d45f96deb8f1e26c7ee6282200b631398e23bc8b113f. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/NLCK42227265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f8b80bb463fb5245cad2e470cce5aa42a164c89e8f66ac280ef9da6c44fd779. 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/NLCK42227266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeca6434a09a34d5818b166688756a70c8aefcf95ff4fd4621b0a61ae2aa1f2df. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/TCAGX2322902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa735619b9c1db5bd19bb6f7c657f049a17c91a7fc28dfefce75056a565923862. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/QZHZD2235941.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe40e4cbd230b558dcf959f1f7d59a37a00ae59c2d3ebcd2dd273139af3911c0. 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/TCAHF2340185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57d50b92530a1f029a8a6f6686b8fd2821f48322ff3ba08f8a0b18278ecf7bf7. 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/TCAGS2244977.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31d5c7af215b6a243fe5a1c69bae2230789647b1e4ca485ac3642b283d391eb9. 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/NLCK42211351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba652e876ed949becded430c7ea0ec6adbf65ce3a39b4e7367258451afa975d6. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/NLCK42211352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7888981232ae65e8e576af53c6d59944e7b91c34012a53ae81ecba175032d2ba. Chain 2 (Bitcoin): anchored in block 960210 (2026-07-30T05:21:45Z), 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/NLCK41098034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88a1b5d940f7fc655ab1ebc91fbc65adec88905326f0c7ad9e84de815219fb35. Chain 2 (Bitcoin): anchored in block 960259 (2026-07-30T12:51:24Z), 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/NLCK41098035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x920783545a4292611705ccbea6943d33f3813fdb30dce5cf65560d972d722351. 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/NLCK41098036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x654cc6b0ab88dd12d9e35bc0475a0066392d055b7ff20331e4675d0e4972ea8e. 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/NLCK41098037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa07607095a75ce59e631b10bc81630d07e700903afd69de4d03b3e6f4356b411. 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/NLCK41098038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa481d13ae576ff0aa6205a501b22272e3945cc21c8ffc92ed804077fb85d2d51. 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/NLCK41098039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd18ad67d7f2430a9f3649e78bb11c75a51e2a7fffc3a54f6207e5703bda14581. 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/QZS632271539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2147c13e98a7f1ef7f4455971e5f644bc026b9adbdd6ec9e401122e22ebca63f. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/QZS662251927.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda3be6d15713fda111d4b60360f64ec31d7f82b37b6d3bdee40da52f3e8407d2. 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/QZS672270273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5389355b27361f760d9eb6a91578adaa29b069184dc5c3c7c6c342f2788b914. 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/QZS672254756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec63bc90dbd65fd1014604a79f84579435fa29a0bc16218c98cd2d468c88c329. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/QZS642336682.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeac113ed5b54a80873479feddf8d8cf3335d99bf8ae093dd121610570b5500cb. 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/QZMHP2316103.