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 0x386257e21c763587c7e5d13c8888e59ebce7ae332826da418a59bc0e2040e5ef. 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/dc0364e5-2a20-4ebc-a175-39a8a1f9b9ed.json and https://artists.proofprofile.net/proofs/artist/dc0364e5-2a20-4ebc-a175-39a8a1f9b9ed.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 0xb6269d25f66679db09f246b46e9a0606ccd5b2a5640cb08dceed56ea60bc3ad2. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZTAU2314749.
Manimkhuza Uthini (feat. Mellow & Sleazy & Cuba Beats)
Mbhede (feat. Retro-Tee & Sabs da Deejay)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47a4c76c61425a358c5727a99def677faa63f29a88cf31d8bb86fe773428279c. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/ZA56E2420271.
Imali ingamshintsha (feat. TOSS & Mr Nation Thingz)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e99f56a2fd954c58118fde0083705574080e13e0758cd14236bc1a699d632a9. 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/ZA56E2420272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b0bae37702e7077b8a8e8645ce25a4a139f00e6a3dc20d53da0f05d419b12aa. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/ZA56E2527767.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fb1b0f9c0429f25c214929f3c4cfb037366959db2749caa0d315fbb6cf81558. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QM6MZ2414970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb959cb046448f4633e81865de2714f15b3d5f9bb5f24bdbe7af4188e12ac9f9. 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/QZWV32435457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x329779cf59e401870e554d731755a48bcdc973b2af5ce33fd7c86bc9ab84ddc4. 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/QMFMF2397223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d3ddc1c3d03a7ff29baf9c190448039187be7b2686533a2fcdeba169ef4e3d1. 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/ZAA012400120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bb23b9d085e5dd0e9d95438e05d90c505a2d40acd2ba69ac1d9f5a003a47dec. 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/QZK6P2534436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b1b8e1be32fd66fb0fccccf022d798ea1a93feecbb2cc29c79a452865af2f03. 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/QZN882413231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x324f3353a81a6a2f92db8866cca9002f3bc3085fb483418a04f81d691ffcaa03. 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/SE6QE2483115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c5f5b7de6d15e49d21e2d322681d1cc764de01e12da301d3233824418960557. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/SE6QE2483118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d756af3d83d0f25c574fb792ae8811e0f82b5108f9fe90efbbaf8e13d1ac9b3. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/SE5BU2515430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96d8418c8285fa892779843bf4782a5d8f3664f5cba0d2bb68a4d1eb6a3026b3. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/SE6QE2483114.
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 0xa75684ac95fa10e6471c7b6f1c4f1346d27fc7b940367a247e3880c5e118d8ec. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/SE6QE2483116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaa30edcf96bca890269948e2ed2185736e07c42866c6c2a0140b70c67169bc1. Chain 2 (Bitcoin): anchored in block 960198 (2026-07-30T02:21:55Z), 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/SE6QE2483117.