1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x83c9996d312190da84ca1423538e922bffaaf37e44a08adfe8779376dcc1fdcd. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0dcbf6d9-8e5a-437c-9fb1-1f016a7eed30.json and https://artists.proofprofile.net/proofs/artist/0dcbf6d9-8e5a-437c-9fb1-1f016a7eed30.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 → block OTSBitcoinBlock must exist at that height 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 0x2b14a63135cc21b0d866064c04941601fa45e46a2e35ce9fae4c7e9f1ad68a87. 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/QZDA51931916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd0954627dae8a69d1648d34ccd863cb813eceb4edf58c19d4938d744119e271. 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/QZDA51931930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a5840a93ce7f8d8640d1549c57290cf4c9da8d1be7204c8edc55363854611ed. 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/QZDA82167644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77156c8b2d0217276dee2be7f10b393e97bf4db365dcc487c4dd35a961f9b20d. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/QZDA82167646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7235f8e8320e4fcea7bb6c96a532d7bf3518a6b7a2c0ce16a7d39abf0a95ca09. Chain 2 (Bitcoin): anchored in block 958122 (2026-07-15T08:02:29Z), 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/QZDA82167648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb60dbdfdb7e95bf1b4a720cf2e6937e0ffe27caca3d1a54eaf7ac5e10cdfbe15. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/QZDA82167652.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e9d7f134f6e223b1b5eff49d5346427c8e8cdd4650003d7e4f99a5f206108eb. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/QZK6P2141243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27a94fa4960083a437238e820fdef7e4aaff12306fecb9fb55e81e85d2bba6b8. 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/QZK6P2141247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4de8a53669cef4744e15f33e29748f4bc4a2200322ed09d1d47a2b892561cae. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T16:32:35Z), 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/QZK6P2141249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65a1a7dd42858757cfd6b160349058ec48fddc678cc8f5fb7203c5f154e2158d. 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/QZK6P2141251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4beecca207a8a0b652a727277e0678f838d98d400811c2416f9fc94fad34e92d. 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/QZTBA2202211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x019cedbc5586316acc5ed5287bf5730a61d2e8afdf3c212ebeaa87f88bb2b710. Chain 2 (Bitcoin): anchored in block 958397 (2026-07-17T10:29:45Z), 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/QZNWQ2385836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad948396e415da8286354d40dd74f2b038f9a5f62090af6d0853e69d34e01473. Chain 2 (Bitcoin): anchored in block 958691 (2026-07-19T07:19:31Z), 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/QZNWQ2385838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf8efcc916d95f34482957bbd0a854780ed435bb4faa2d477f990b3aacff2f93. 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/QZNWQ2385844.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ac945ce53fb9c2568c39b9f39cbd368c4bef5e00cc9d0dc4355a6c97ef8aa74. Chain 2 (Bitcoin): anchored in block 957709 (2026-07-12T13:52:43Z), 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/QZNWQ2385845.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x099a2ef2d3ccb5ddb48a7c21b8fe8e7f6e4c649404e30b655d48f4cfbb33bf35. 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/QZNWQ2385846.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32094dd697027c5f8b3b6a220d052a7b392b03bd6dbf91bab091d72096dda221. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T02:47:57Z), 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/QZNWQ2385848.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3312c2f1fd2c660cd2224065e6b81a0ca1d91df01fe703aa7491f3c39a61078f. Chain 2 (Bitcoin): anchored in block 957702 (2026-07-12T12:25:41Z), 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/QZHN92598154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43cf62d5bebbc422b01beb6d832c1a0ed2299b5916734d681aa9fcfecd7c2a49. Chain 2 (Bitcoin): anchored in block 957702 (2026-07-12T12:25:41Z), 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/QZHN92598155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05c6d6971fe58dc3a3af972ca91a09608d692a67bb8396a7af090df9d326e9b9. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/QZHN92598158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x104d0728abcdd4c106b1f3f15cdbab2af2cccb55523be4f68c4f0b8a4cd8c884. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/QZHN92598159.
Haleluya Ngaibve Mumoyo "Ndapererwa" Reprise
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb16dccf1ebf616824a6b6e105d6f8a5b6288dc5de38fabe2c5c99957ff25b0d. Chain 2 (Bitcoin): anchored in block 957702 (2026-07-12T12:25:41Z), 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/QZHN92598161.
Haleluya Ngaibve Mumoyo "Zita Renyu" Reprise 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3135ad2f248ba131dcbe73da0ef6a52f197c30a9ce1462af71aff1e78c89bcb5. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-15T23:25:50Z), 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/QZHN92598162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6a0bee4e194e8b00686b005f78f9bd2ab29f770a8519fddc3d633ffcc1b8953. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/QZHN92598163.
Haleluya Ngaibve Mumoyo - Acoustic Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf26cee5775c530b299ca7d66d98901f11095863a00d7c84ec8564a1f6906791e. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/QZHN92598165.