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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x157edc6bac70e05bfee9d8a17a464aea9e18945d2c251c02007dbd41f7f6b5a1. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7acb22b2-c694-478d-a501-3c8dcc3f0496.json and https://artists.proofprofile.net/proofs/artist/7acb22b2-c694-478d-a501-3c8dcc3f0496.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d3e2faf654e16310d02397f8ccc8b0e5a8ea39ebda3521cf50d66aaf5c23e25. 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/GBMA22099813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc09a70ee63032ac80663359f9da9c20190b82263268eb62aee48fa47fa57375f. 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/USLZJ1848592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd06775a0ddd1ad70f6b8b9551c7e7ca359b40e7d1f0001103d66167855b14b79. 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/USLZJ1848593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23a64b1afe027af92c1251732722066ee828bb868c0621d76c5984e2af24d7c8. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/USLZJ1848594.
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 0xd0d253239e3aa40c8a23296f6eb75e38e9c1a9f6a8520555d6e79beb2a93a27b. 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/GBLFP2106999.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4833ad2aa6b96e9995dc653bde15fd135bb23887632e5ead6224b0cec94409c9. 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/GBLFP2107009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x017929d17788b84e8c788d6cecf7807a564865f52cd4787b243209a1736f09f5. 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/GBLFP2107013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13bb95802dc5735f2e044d2727081f9ccc10f014013e3af9b06e9d0792f162d8. 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/GBLFP2107031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x123508ac6924e20c5d23bfcb33e47036d1c4ac3a022f051acb9308ebea6de5a8. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GBLFP2107042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0940eaad0e8e1383fe3bc8799849cb7f7b6beaa631d954a41c5741f7abe35754. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GBLFP2107045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5ba488364a97a302122588e4b8ba0140f95063cd8c4508037b4a999dbd11cb5. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/GBLFP2107053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0d13e5086c739199f9d06ee93112d8762169f74378bf79a691eb10961c508cf. 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/GBLFP2107058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa181c11b2f7ca5a25a990341cd2ea86fefafe4185457dea829009c3ee431ef49. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:29:37Z), 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/GBLFP2106994.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e0b9e07625a663378bd8d4b312d4d26c30e698cc5a1537ec5788a6ecbc14cd5. 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/GBLFP2107003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21cf8913e292447af67b655000a2a0a37bd894c1187fdacdf67b0063bd62eac7. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/UKXN22460257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfefc4cd4cfb1c82ec8807ad630627ccfa5a30414a435970c1a90af16e96ed9a2. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GBMA22344846.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdee472313cc6946a4d7c85e11e9e46e9223d9a9f00d2deea3be6bd43a58a132b. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USA2P2358289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3687558b351b5307ad702a1be020fe92084afba2c854789caa6279acf2e1701. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USA2P2358290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x768c851898fb5ca340bacf177540edf6122061365fc1929eff34f5ee326e27df. 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/GBMA22301958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b71966c973c6dc045f5f7883a88d074659c9a5c5d352d803a4d64e06eb8b788. 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/GBLFP2353996.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69a74b9ebe8366d6f1dc97a97c2300b524236985b70db99d1b333001f29db5ad. 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/GBLFP2353995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaafc6bbcdb5b666e600d338c86df391c2ee6b82aa9de6d080d9d141301c8faa. 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/GBLFP2352000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x704b97f938a2578e76d2cc925a1bcddcc25b8aeca12726b1ec2267dcd9aa36f1. 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/GBLFP2330286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ca5cb7f8b20532ca93888b977c455a39dc9d87d981b49ff2130748f75413424. 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/QZNB82325439.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6509c7c91316163354454c3bb6a739fc0c12e68de54075714d33a2a9ba25b78. 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/QZNMX2282458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85fd0c015ff167995e826f13eafe0600b5cf58bec40f9616de2e306d984859da. 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/QZNMX2282459.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9e1cc5268d045bb3ca0fa1a75ef8dc2448c0dff0f29abe278424a9872eccabc. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GBLFP2278766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd40dda871d83b49fe8fb1e58232bb1fdabcccb4e256c76493f8a0d27a25b2777. 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/GX53U2004043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba076fdfd18943b917b5096e22ecd83cbb2b5166065e05397c232806c49fb9fb. 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/GX53U2009003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x740e61b8148e25736ffedf3e22a6cba60c55dec0b3645814477780b4dd210cfe. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/UKXN21944973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1574b5b6226bc1f7f4459b9cbe4547e5bb56d270daae4009c3997e9c2dc0133. 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/GX53U2000945.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc8bcd51c44e7a45a951d6c7dfb5dd11baf1e7d6d6cc1459a3d946988b5f1ecd. 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/UKXN22199185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40bfbc20752cd05953061d41c4e6e3a8b96ea6bdc3d6b5acd58631c75804769a. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/UKXN22199212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2d317cc4fc448c3cc43a7a3009881c096b467babf324402d4652141ef260537. 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/GBMA22101686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x375d24f99808cbc23a3087e6ee414746f447d2d084c860031dae412c81041c49. 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/GBLFP2181061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46fb5dda8b6a0908b6421c3d9579dd8991bfa39620169b65d0ab5f815b1aa0f2. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/DEBE72000491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf14df0c824fe8062a0cb2745f7bb3a329ec33a49dfd6fc97be8fd5784b91171e. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DESH41900455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x708f14dfc99a2332034c98d8a2b9b7f4a5548bbd686900846e88376e14788086. 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/DESH41900456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce57ee7968eaa520c7d02bf6b8626d4dd966edd8b6fdb9367fd39c6b686af6f9. 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/DESH41900457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x324582dec9f6b169cd97b2d0b2300e36312a2225e9f472bb122ffc06b1f5e195. 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/ZAG8M1800152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35529954ac8c4ab3308cb81cf00f07382c5896d605578f5e505d1c3eb1644096. 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/ZAG8M1800154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1382f60b48d719ba1f21932d677c5705e76e7f9c56a96db396bdaebe2b88f6f3. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/ZAG8M1800151.