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 0xd16dbfab3d27230741b76ab0a9e6bbad5d0f6ffcc981e0374bef1cc1f88d6d59. 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/49a06ec4-cbac-48a7-90c0-834f022641b2.json and https://artists.proofprofile.net/proofs/artist/49a06ec4-cbac-48a7-90c0-834f022641b2.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 0x391df2d9698852bde3545bcf865e421fa8c1b05c5dc1ed2478ae71e68d948e18. Chain 2 (Bitcoin): anchored in block 956397 (2026-07-02T21:02:00Z), 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/FRYAS1004720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87f521424c873f84f89a88868d9fdb2b667c0f8b1d19e502da874ce608a26bea. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/FRYAS1004727.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfadb79b0327a9cb62655e470a09f7895065a9a9362f40b60809a19f7622f8d8. Chain 2 (Bitcoin): anchored in block 958920 (2026-07-20T18:14:22Z), 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/FRYAS1004728.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4c469d733170738e741eb81b186be8d9ec69315fe1f3953863f5dd77fb50245. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T23:47:10Z), 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/FRYAS1004729.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5aaae21c038e08a5eaf7a88af11a8f8e27d10ad8fb3b8b453665880d153d3129. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/FRYAS1004722.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x862d20f62716b8a432fbd347902e1b969ee14cee7420abae5726ec4a47823324. 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/FRYAS1004723.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe02c24dceb5af838af16538bcf22daaec8ffa0b48c1c0dac9cca66b74fb98aa2. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/FRYAS1004724.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f421d817bed48e59d0e5115d0c3d0d8eb5f77726983f656aa08bdb815cd2ff2. 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/FRYAS1004732.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc63bc2d16db83844a6c61738e09ff3c2bf7934cacc36795467c2d70e54c48ee8. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/FRYAS1004725.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa111d6488b03571403af76b774a8ab974042d209ef39b55ead3ae23147bea64. Chain 2 (Bitcoin): anchored in block 958708 (2026-07-19T09:08:25Z), 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/TCAFE2064764.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3afc9549e886de498fc0e8cbc7cd0f4814a8662b60260c5ea0ce8751ad4e0191. 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/TCAFE2064773.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a2b04b3379f8620a2eba7b140ee21078e595ca269a6251eb60b9285035ae240. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/TCAFE2064779.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06a8b7f0c50719a39b710c16abfedde3b209d61f852c2f4de7113af2574364f4. 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/TCAFE2064782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6f10b8c820162a9f9bebfc1934de1aac380f5034a175d145fff2c26cd81f5a1. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/TCAFQ2117177.
Koseka Na Ngai kolela na bango (feat. Esther Yembe Kupula)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e8d147d50ce929c81a5f3be88c6ba21e6f502bb8927c4979363fd0143d1c656. 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/TCAII2426166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8409d8cc83215b912de6e70ef5c31f9cee6e2c16d37858fba9fbd84452921c03. 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/TCAIJ2426215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcddbe0168f558b975d793bd9968c6cfd9703b6fea5de34380bbc982ce3cd8128. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/TCAII2426195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac503e316f2b15205003ba3dd5317a56dab1a5cda7fdf4fc19dc175541136b2e. Chain 2 (Bitcoin): anchored in block 958662 (2026-07-19T04:43:15Z), 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/TCAII2419159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ae777021814cd43d13d8fca88d24115462387a132780d13daab8bfe972582da. 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/TCAIJ2419169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb46889ecbdb0f9b6d19a6f264b9cf48c8fa03bd8ab8d3202468eb2948cca72a. 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/TCAII2426220.