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 0x592f2fbbe06a49f4efd61259a906a89fb855f4b8753e07f17666c3b6ef077f70. 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/d0b7835f-0d56-477a-871f-0c3b2fd830ac.json and https://artists.proofprofile.net/proofs/artist/d0b7835f-0d56-477a-871f-0c3b2fd830ac.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Baja Ko Pele (feat. Xduppy, ShaunMusiq, Ftears)
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 0xf4f2cc2e15a68b3f360a9ac9a85b2e6718218413192d7011ed0531e2fa65e296. 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/ZA56E2302225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c72c1832de6b3e38949bb5bd86d02d7168431ebf7cb44bc174e1a97de496831. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/ZAQ652300013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0a00dd2d650a653291c947df8be89cdc87eb595a2460d4b60a25136cdcb5d7d. Chain 2 (Bitcoin): anchored in block 960157 (2026-07-29T22:12:10Z), 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/FR59R2313551.
Salary Salary (feat. Shaunmusiq and Ftears)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23dc5b38519181e8386a37be6a1ac5d41925fbea1d920013b0f8fcd3f37bedcf. 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/ZA56E2200309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff94a9d204d4a589213320056cf9a8deb4ab213a3b28e44b6af77b3580300cca. 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/ZBC042400015.
Simoja (feat. TBO, Kabelo Sings, Shaunmusiq, Ftears, Xduppy)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12f93b4ab415528fdcfede21b9fba31aff1fb43872e6c6136836e7dafc8af960. 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/ZA56E2304122.
Spanish (feat. Shaunmusiq, Ftears, Kabelo Sings, Xduppy)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cc57f31066ca9774dc26422485af0b39490872fc12a90340ab370225b7ca40d. 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/ZA56E2304126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb530a6594b9a7fea1eec27c1251671d3d9adde11a002a68cb2eb2b867bdf362. 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/ZA4BZ2400079.
Budda Messiah (feat. Xduppy, Mbuxx, Ftears, Thatohatsi & CowBoii)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc12d0686f05e5e949cf9981004214af6372c90f49a020846b92231cce22a3cef. 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/ZBN532400048.
Shijangujangu (feat. TitoM, Cheez Beezy, Xduppy, ShaunMusiq & Ftears)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91f3383c1f4d5c7b1e3ecbb1b2206fbd5cadf7d4457a428c7cb727aa5a7c6a2b. 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/ZA56E2416375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12f93b4ab415528fdcfede21b9fba31aff1fb43872e6c6136836e7dafc8af960. 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/ZA56E2304122.