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 0xaf5d52d62f1cae32323fadeaae1bc21dbd9c09d53caf78a1c580fe1100c989c8. 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/5a6f05d7-8dea-4578-85db-1361e778a947.json and https://artists.proofprofile.net/proofs/artist/5a6f05d7-8dea-4578-85db-1361e778a947.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 0xd5f6c854724fb4da09529410e1dcb3cc96eb447f08ad68216d0d207cc9aa94db. 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/US7VG2437538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b8d0399f68b09c7b5ed80f5f2398f3b288897b308138796de5316e2a9fc859d. 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/QZNJW2482186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffb8fc9051787bb202bdb864b18f750bb22f84c023085e02d4d72bd945446879. 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/QZNJY2322431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3979ec228641dd340b2536529661da0793229fe6f000246299af365b39ca8805. 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/QZW9K2398224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09b909546ebbcdac39fd4d28a0bf2683794c5b631f281df639ae0f3a2b89bd6f. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/US7VG2491038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd080e3b76effd0221fd0e27b5a7c8beace1621cf0a9c6cc1fd67f42762d569b. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QZGLM2539928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x714b07a32a3fa65f33e9a3d2c2a6590c2ae6deb30bb82373e557bfb54b395930. 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/QZNJV2561073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52f34e4b8f1397cf35932345c419645ead909a5b7fd85d2be22e94672181f6ba. 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/COAF42506152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e2737fbb1a8720afbfd71bf21605b1e89c98532ae48ba8a5180b827ce30f7a5. 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/QZMZ92543002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51ac0499a0cb3e0fc9f00903f4567af4470f09d4a575f6917a311951a6aecc4f. 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/QM6MZ2523489.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3041f0fa89c8ccd42c0ece8e388aec5ec783beb18cc3ab580857d38d15f4502e. 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/QZGLM2528501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8aa801e308899fbf8a8b807cbe24bca05f7bfcedffe1e812379f35b22513ede6. 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/QZGLM2528502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8684d86416ab3d908058b44f5166b9cf420a34636b9ea23ec14b70f210f86bb. 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/QZGLM2528503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7491d5055cc9cd9a1083b0c8915a070e294b1c7840d394c509e6e08f27923949. 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/QZGLM2528504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe408910b58f90ed052a97274d58a2f0fd11175f4d4a25575f64ee469920b8b4c. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QZW9M2401930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c7ea4eb212bc6f6fba42d1a15041afd6ab7ecc1bdf3c1d9b81cd3b3c0f4639b. 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/QZW9L2444676.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe286b028d71629d42509751adf38e786862be97915d71279d48d575753b339ca. 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/QZZ7R2472153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad8050d09dba8fd4c4623f7d8b4cc3f84feb8387cefdf890017609912dad3a71. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZTVM2473499.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x846d91d2fb426f31317f1e39a23af5b9876ec85c27991aa8ae1f9b3e849a7c5a. 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/QZNJY2419725.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x396a8f6434dcfd78c2db8cd3d7f06f1a491ab97d54fc2ea95f4c7babc9984e7b. 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/QZNJY2486918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c707040733c3fd5decadc79a6e220f770ff57c4d0017022c8504ea76f19b2b3. 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/QZGLS2411501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0125b1f402e2087c8a8748aaa9eb6f41dfa22bc65211cce0381b0ff133189ca. 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/QZ5AB2481656.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf37e6b85125c6e84b6bc508b0c75e3d5a7e4e11eae6994a016cae882a85f3e8a. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QZFYX2438541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa32480e6670634bc804c370930e90f897ee536f946bbaff51f166cd5ed970450. 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/QZTB32371276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd06b5ce3351039b6d01b15cdae4107b1aa09b88a86335c273b39c81f4a4c2875. 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/QZTAT2372016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3ab895767ab312b4dd8f9a874461970ac6ca7aaf6457ad37b84da1da0ccc1bb. 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/QZNJZ2368890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e76ffaa9847221e76a9798cee1d66ca19458f2fecf2129d070c8daf7e9ab914. 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/QZNWS2379336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cdf966cc0601c3f6cee90e34bd3044bd6b7b1ba6f3afb853d920a180d8e4d69. 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/QZDA72248533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81827fe4afdb478675c764024b8e4d563ed739b1d27bbfb8c61edb78d2c84d44. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZK6L2347725.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83efe9e11a70e50335b6a8abba52997fdfc47c4c02f4e4f7d09b2491ddb9e407. 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/QZES92385314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66f8b9536f12bbc4241a4bd46beb4ba4e41b3a2ae72474305a2d36dbaff63525. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/CA5KR2318192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffeb2ba37429e2bc4aee5a19a464233cae6425d5b1794699c194069928f0e287. 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/US7VG2313067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadc051c43431b0fd93026e8f0905177a733eea0a7e77a7786eb0a138fd9a049e. 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/QZTB92235902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb177622671538bc386a90c314e17ccaa6945630313e746ac981466e3e0664f24. 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/QZTAS2228802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa036950448c0a7510d93c472e138ad6f53c606b88c7121ed1ec2fd0de6c85c33. 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/QZPLR2211501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44e0213b925f16b7f5d1acbb44ce3a8ad8e7c8519c6a8b32086f9a5e7acf95a8. 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/QZNWT2242273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe52a9eb1f7a67db9931b7e8e7243c0a1bb793823d8ff71d8350d016eaddeacce. 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/QZK6P2255788.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa33de8c997464fdd5e53b4d0194dd12ecebf8f18b03811434992fdaa1b788eb1. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QZHN72298626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e39d34f381cfa3d9f072d287cc7376954e3d30fe3da3f262e882dea8b5379f0. 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/QZHZ42230699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7789ad63e31d0e604e3e74e2dc2c781ddab4d7dce23623edeca025164d0fb870. 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/QZTLA2269727.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72395f711afb027b267e94acd6bd772c9aeb3c5e2efe9d8e3ea21ffd68ea0c7f. 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/QZFZ62294130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79dac4ca9b5d3bcd4df581ab52d2138f13f54155c1375f14c382eb51b1b9fd01. 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/QZNWQ2167235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x870d6f822cb350b1dc72a2269c1e3341b776f63a6f9fd8ab41d354dbd8d25bc3. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZK6K2192819.