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 0x98d59cc0e954fc0496f737efeead1377e20800063dd4ee1cd1288702e61fd1f4. 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/41ef85f9-fad5-4549-aa17-4850fca8b676.json and https://artists.proofprofile.net/proofs/artist/41ef85f9-fad5-4549-aa17-4850fca8b676.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 0xe6cf7db9f49630cc5738d520259690ae7079ee29e3d5fec83bfdddcbbde5b9d8. 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/BRMKP0900648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38b3bc5aa52c25b2d3c00ad47ce485f6901700daf31b3b393f008dcfa2e2171c. Chain 2 (Bitcoin): anchored in block 956578 (2026-07-04T02:23:20Z), 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/BRMKP0900649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f9ca191e38a67444809f73e981f7d5dc3facd175fa23d87000c0c2150223616. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/BRMKP0900644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa95ca907fbc67339a9e19167d1b3b13decc0cd8f3ed4078492020b38fd856ede. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/BRMKP0900646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98dc183fa7b82dff75382a18b744cb07dce03d076a2790acdf7fa316b96fe44e. Chain 2 (Bitcoin): anchored in block 956578 (2026-07-04T02:23:20Z), 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/BRMKP0900645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c5824dd15bfecdaadf0db9589a46d121cb4e3249b1ba1c2efbca385a2f90a0c. 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/BRMKP0900651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfbda8062957c97b4ed73f496596928d353b6545a9527c3c489c171829027ed6. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/BRMKP0900650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb41b4e2fc07a1c0c66336b049a7f3efa45ba7318e9291a4f186b51cf213faca. 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/BRMKP0900647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ba1223229394d1b2718ec8905ce1abecc9f282b4bc0c4cd4bc92e41950fb87c. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/BRMKP0900643.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58b803779c1f98beda0c8460897cba3df6c66c574e252e29b875ad7b10e84a38. Chain 2 (Bitcoin): anchored in block 958865 (2026-07-20T13:02:51Z), 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/BRMKP0900652.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11fbb8f2f3293e4f7552843219d3c03e78e8747adef85b62ed4cbbbd6159bee3. 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/BR4EA1500022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb229e8a250e1a5970187bc7b9611410d838160b5bcd7e42fc93f7a8868dd59bf. 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/BR4EA1600006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe803ac8cbaf3672967529993754fa7e8baaa9b0797b641ee67cfe84c7708b0df. 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/BR4EA1600004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d22a014ff71b657b14a9c1bead3014e9c2344564b2c53683b6280633a6a0495. 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/BR4EA1500021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe69de4e2ce1e0b639b5507c47cf767b99a80ba38eb8dd8c4f196c8fd1f271beb. 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/BR4EA1600002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c74a66d9646a43e20473e4951475c4472d0fae7468965ae307204828cdace1c. 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/BR4EA1600001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e01af1cd39fb75d5449a41dea761480f657b2da4f309818e7119f486fc9332a. 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/BR4EA1600009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b3bca1d4860dc203ca1020d4059075e0a33b61c7d90c473f80e5af3e1fe65ee. 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/BR4EA1600010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3388e2dd0bfa920b68b9f1f6c251a1c6c9d130a70f1861dd2a5dcfedfa67e156. 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/BR4EA1600003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97462e68a6162a3790a92ef896c29d17fce37a883358744428c3301e8200b69e. 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/BR4EA1600008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x983bde7dff7dfd15f73f7c21149a2d54fce5a282f5b0734aba4502315636effd. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T03:47:09Z), 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/BR4EA1600005.
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 0xfcc763aacc221bffe7f6809d087362246460e046c60ac98f0a4d839056158348. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T16:23:42Z), 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/BR4EA1600007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c03dbc097d25a30d46256de2600d5e393f2c69c5dcb9fefa238ca9d858ac426. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/QZNJV2102960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0362fd38154c1d7623283e416be34215b5895a7485bf329f894101eb3dc287cf. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZNJV2102962.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf5be119b295010bdf2ec50a5f996803d0202410952c5f4350477db34f9a3616. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/QZNJV2102963.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fb10ed81703e5e89f42a3b114277c28cbdff49d41e439eea3526034a9febf2a. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T21:46:21Z), 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/QZNJV2102965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4080f274190f91804a0cdd848595becc4d619c3b4b6984cd828ca13873a510db. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QZNJV2102966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21285a03b82a1da8cbc6215d9e70b26dec8967df8c538dd153d34d73c1ecbdfe. Chain 2 (Bitcoin): anchored in block 958832 (2026-07-20T08:30:20Z), 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/QZNJV2102967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b6192412ce1418b8a0a94ad5ed6520d06625815f7bac95f41dfba092049d8fd. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T23:12:51Z), 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/QZNJV2102968.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05b45f4eaf3e5078a5ca54f1b8cf85606d9a1272f4d6e63a2578eb8563c95ad5. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T12:07:26Z), 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/QZNJV2102971.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ecf88f095b99edc690e67a8c8a8cabad6ff92a914a2f722e48cae4104803d22. Chain 2 (Bitcoin): anchored in block 957884 (2026-07-13T16:55:06Z), 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/QZNJV2102972.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9d9859b4c4160430db9948b2ee8b6182ead54b096d7d988386574687e7fd16f. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/QZNJV2102750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc16b1ae41fb0b88c62e5b129610e4496ad22ef88949eebb89c22dfefd99e5696. 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/QZNJV2102756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x032eaf7e063e803f9cac9ed3bab0d308d78aaae84a25454148bbe4ac9c76834e. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), 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/QZNJV2102759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1674b5008040f9bca6c6480793dd53940e179f0270c7c2f2ee67aeba901864ea. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T09:23:46Z), 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/QZNJV2102760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb25e04b0438a32d9a61d800409b663de33e5a7edd9c24f13e30688c4d74acce8. 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/QZNJV2102761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x504fc36a1367ff8d72b26f1be55e994b99f484d848eb4f4a428e034a6a69f116. 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/QZNJV2102762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd47d1961592701093a03c8def0817e09575f37a9e6eb207fb0d1a7881b5c6bb0. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T07:01:59Z), 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/QZNJV2102763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26bc4493a03263415fb6115a201418ee200b99fa48da473bdefd04c6e03bed7c. 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/BR0P71200004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26bc4493a03263415fb6115a201418ee200b99fa48da473bdefd04c6e03bed7c. 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/BR0P71200004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bbbb0118e8e57cb8535eb1601639f303bcc5ade9b9c0d58116fccf41cf38502. 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/BRHN81200009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bbbb0118e8e57cb8535eb1601639f303bcc5ade9b9c0d58116fccf41cf38502. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/BRHN81200009.