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 0x50f6e4be8560fb638e49bdeabd0807f562c0f5e1b8eb50b642695317d0084534. Chain 2 (Bitcoin): anchored in block 953648 (2026-06-14T15:20:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/45690777-fe93-4974-adf4-19d532829b9f.json and https://artists.proofprofile.net/proofs/artist/45690777-fe93-4974-adf4-19d532829b9f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Ozana Bukole Hallelujah Mara Retouch Beat
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 0x58d88437ea2158d914231a874cda354c858bbb0e465090f5872380f9dc040ce4. 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/QZZ662313617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc233e34911a56e9d13fb55f5c42a9ebb52e31652488d0e4ab8729bde53afe36a. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/QZZ662313609.
Agbefami Of Abk (MIDENYC) [Speed Up Remix]
Mesayah Mara (Feat. YouTooBad Music) Beat
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a099b933336a88ddc7336d33f07c61490c21762b3d558c9d1f36b4c6a8dd180. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZZ662369633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x263b7ee4e1d95182a6f362cec257f57696fae5682dcdb7ae86b66efc67a4fcb2. 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/QZZ662372056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7914fb402ee7ff9280f7825bf1eec55b2fe61f7b06e5894ed3eaaa85125ed28a. Chain 2 (Bitcoin): anchored in block 959091 (2026-07-22T02:33:54Z), 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/QZZ662429394.
Brother Teee Dollar Cruise Beat (Adex Berry)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc6f2e4f76a12aa4abfa9aa7e24c0bbe19c74370772dffdcd450d859d04173fe. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QZYFZ2441685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf3ff84f19bcd5330356286a268a3e362e561d48ce868d17791bd039205d4fef. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/QZYFZ2442652.
Hallelu Hallelujah (Fela2) Freestyle Beat
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdf70a3a959e7fe45c8de621a2187da3fd0cf3ac2633eb2eb6f2f00dccd77181. 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/QZWDW2420452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4043dc7566344a9c91a6a840e3df4bd0d4144e1b3aa1af0496938c4b3cd20af. 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/QZWDW2441488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c5ced1c0afd1c8a8c287cbdfb5fcaccb2b816b1af2b7d82497124c379900af0. Chain 2 (Bitcoin): anchored in block 958465 (2026-07-18T00:04:42Z), 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/QZWDW2441495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ef767f63beaac48184f440229e1ce3ab0a87729585188038f4749a7eac1bf74. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/QZWDW2445661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x650b7a5af19fb24a4d5c7e487663f046d714ad828944b1ca7fe1397600c0fdda. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZWDW2455707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9211a85cc0e812472dd2177bedd6acbcf76640e64cc3ffe8a93cc5e484d4d07. 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/QZWDW2456708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8fd2ced0e2efb62a5fc581d64f048796710f97e2f0b2d451c41b1051f588688. 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/QZWDW2453168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a9ca8d59cb7cbb9293b671053a0cb9d24c0f9900a9155788933a26783429f17. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T18:54:07Z), 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/QZWDW2473894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc53863c1c60be162118cccaba74450458f34088950d7dac3a138925ae3df999c. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/QZN882414820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0441c3a3759c0e309fb9a9044fafaeeafa3f64ad0e8e7cd45f11b12d5635cfa. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZN882414825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ede0da1b4abc7e90c1ca07f745f3f3dfbb18d5f96fc9d5de369dedadac5b0c5. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/QZN882424106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9943ba0800ed3eac99cb56a86bc266556897dcb2d3d788fc57a920e7b9375acc. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T15:48:23Z), 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/QZN882424107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf160e060b21f192efdeb47cf3e0b2487fffa48e6e838bd31a0d121a8e780d824. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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/QZN882424108.