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 0xdc35e04e61dd293209a1284ece78e363d8e6cfc7f567c4ff0a4c4ee371e54730. 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/2b3aca15-2823-4b71-97f0-8319accb7804.json and https://artists.proofprofile.net/proofs/artist/2b3aca15-2823-4b71-97f0-8319accb7804.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 0x6a47d3f1829e59226eaa119431dc75e091534bc855f882f87e66c373a5867e31. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/QZNWR2201580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec1ff438e64990ee9bd372af4fc7af7f5c9c7c17040e296edb8dc5594e080d66. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/QZNWR2201581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x465d052e68848811fe6e826ee8273964c04fd6a0f30c2fdf3bbad2f9fa595593. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/QZNWR2201582.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe45e9bb0365e3744c871f76fbdda05cb67fe42e6862957ab6ef632358b53cfc4. 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/QZNWR2201583.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd41dfd36f242d1dc06949e0f9df05acd6e5b820428f27b8b5606248f21a1eb0. 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/QZNWR2201584.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9eee8a5ada8f16829ba751be683b3e3395c58a7f3aec025d6ceb687d6a15824. Chain 2 (Bitcoin): anchored in block 958410 (2026-07-17T12:18:07Z), 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/QZNWR2201585.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed9131c2cac33eda7c3779ed9d2a511faad74719eaaf7539d024787781085032. Chain 2 (Bitcoin): anchored in block 958567 (2026-07-18T15:22:40Z), 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/QZNWR2201586.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef61c469fca420b7b402c12e030fc00b9a8e8dd2a65c91a8787faa546b284e7f. Chain 2 (Bitcoin): anchored in block 958567 (2026-07-18T15:22:40Z), 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/QZNWR2201587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96f0f3c01fd97c1b47a7910c2e0ecf4e28bbe965a2dbfc06d3bb8efd273bd748. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/QZNWR2201588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07c88015eeab166bb6998cb994ebbfd827244bddf79e43065b3133f167fa1391. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/QZNWR2201589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x086208919f30e5ba8933d88e6cd72d211f4309efc3d3b77f7634bd7563157e8e. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T07:27:09Z), 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/QZTAW2220293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1333292e40834717c8d0734afbe6c9fc547e6b6bcd4374327d13c0f8d2bd9bf5. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/QZTAW2220295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56f7ca6c06fd28a0a1e8ac3bec3ee4febf3a39669f266c1b0bf46e0b1f425a97. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/QZTAW2220296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9aa6ee53fab209849ac469bd76c065a613f4d4fe13838159d1510fc116a79fb6. Chain 2 (Bitcoin): anchored in block 958083 (2026-07-15T01:50:31Z), 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/QZTAW2220297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x612a1f0bfd40de5c16239c126f0e3e23b6b850befd214a1632bb83581e6b762b. 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/QZTAW2220298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae73a7b4847fb7e27c71239603041c878c6fc32efc8a49ac02f7e60febc9a345. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/QZTAW2220299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ea15613490ad545d438398eb175ed5dfce8faf418f4f0d47edc09af9b26b5dc. 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/QZTAW2220300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5eb734e9ee924db040ddd4e36a28842d5feccefc9540b33db6a9c9398bcabb8. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/QZTAW2220301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b10d43b9603df1fb567aa48a5d8d030d4959276a433cc4e0c968e553eb103a8. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QZTAW2220302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01b3dbce51deb625d361057687a04f9eed08086a6a89b7c1ec60953c954e3cda. 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/QZTB72289075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7653f629e74d492268ceec39c626486973d59ca73534bd632b66be8a3da5b745. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/QZTB72289076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb23bc5d3f8865576c62555b32a792bee9a611b6367327423102b401708aedc4b. 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/QZTB72289077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb4f3ed7eb8483eb478b26cfe23b30538ffed54745491e1a0844f0416008fb18. Chain 2 (Bitcoin): anchored in block 956482 (2026-07-03T10:33:57Z), 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/QZK6F2394439.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ae34b862219c578a6461a0bf0e1df8225bc2495de07225370718ceaaf343f3b. Chain 2 (Bitcoin): anchored in block 958268 (2026-07-16T08:56:51Z), 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/QZK6F2394440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27750820728bf5e6848713d7c48a07a2b6f9511a827093195594baa046ff5dc6. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/QZTB62333999.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x968285b7b7574503c3e5311fb5ae6f42038e10f41e0e81e87948478598a92ff1. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QZK6K2417427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67eca4b56d05857fc20ca795f6a05017ae2681fc394ea6001d4c1fa169ecccf6. 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/QZK6K2417428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3049cad7e3831e5545ab71675afef56cb9dbc1f71dd7bc657db87b360a5481bf. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/QZTB72413843.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c430da7365ca1adc687a6991e058edc8f118bd664c4dc670ea24ce36ebcbe12. 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/QZTB72413844.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14730d222822685595e0c8357435c37a17895c3dd338bee0eaae1680b6a21ccb. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/QZTB72413845.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4180b3a51ec01e9a7d26c0c10e7c8e5957c4dba990f5ad43a1fbd22bc078af5. Chain 2 (Bitcoin): anchored in block 957752 (2026-07-12T20:53:32Z), 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/QT3EX2409604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62c0da55a12232e39d91e2d2fb1c583840aa37e8658d7fadb30c81fdf6202bd3. 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/QZWFF2593201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f7fd3bfd6bda658cd892e09dc7da2914543f4ec93bb1773c9b3eef3eb138f7a. 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/QZWFF2593202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a68bb7512ff72fbc6175114d37eb65f2118e4fa1cfbe9768d48e1f4d1151ad5. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/QZWFF2593203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82855ae88496f421edb3912a749f57b95188dcff98ad91fe7778eed14c675cf2. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/QZWFF2593204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8a1708f7262e94a24b7459e0acfb74d00b16520c35dac6b1047ca8c23c12db3. 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/QZWFF2593205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17e6fdf9ef8548d72d21f0b216d4d63c46f3533b3cb9074492c9726fecd55611. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/QZWFF2593206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf84662f24a6ea284d5cd444c3c61bb1672b98088d360a7ea63bd1abb63d46c3b. Chain 2 (Bitcoin): anchored in block 958242 (2026-07-16T05:02:52Z), 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/QZWFF2593207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9779559ffcb772b1ce077d26ce418d3466b3450530c11728431d22e0d6397e12. Chain 2 (Bitcoin): anchored in block 958538 (2026-07-18T10:30:13Z), 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/QZWFF2593208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05c0d6b88f7aae55dda38704ead5df2db7b6fa744102766d7350fb42ea3e1982. 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/QZWFF2593209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9e0c443000b788a78e86c7a42b66f1915fd1a89aede31863c2d8d3c6c2d6fd4. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QZWFF2593210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2896845aadcad6ecf4b2c45da24725183b28a19cba0e0816d75be79eabe6e30. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/QZWFF2593211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb03d669f3e6cc0771222d293bcdaad889e3f6b16f50d59e697a2ac502dfb909d. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/QZWFF2593212.