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 0x550d5064c32b3230d6e2db31398262636527ec46354762b9d60aba56c61d92aa. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/00a7964d-1921-4a83-b422-c4534a7de18a.json and https://artists.proofprofile.net/proofs/artist/00a7964d-1921-4a83-b422-c4534a7de18a.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 0xa3e17cff0b9d080aa62fdc04a546943b2c585e3f8bbc929113da893598a7911d. 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/ZA56E2420562.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x045446c7e2bc8990b3406cb1057ba67f361fe465a257e9fe7984ae1641179ce8. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/ZA56E2420561.
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
Stena Academic Bounce (feat. djygubzin.live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02c72c73198ef78cb385a8bf2a96e23ba746611c05ae079c78e52e2688104c17. Chain 2 (Bitcoin): anchored in block 960506 (2026-08-01T03:50:58Z), 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/ZA56E2420563.
iJäger (feat. Nation Deep, Givem Tyler Litch & Deestar Za)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdf047203fb5ab01f03c61ed1eb33e0b7badf39923acf1bccad98199594de3fc. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/ZA56E2416104.
Unexpected 1 (feat. Nation Deep, Vellem Rsa)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f168f080641d5d991ec22e9951fb778d24c5e9a3d56830f1f6ba4c579f2b477. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/ZA56E2306224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4eea1f0eae507bdcf60cc907690e76a9dcd0117d80bb1d048d7bb3676d1089ab. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/ZA56E2306230.
New Piano (feat. Nation Deep, Kaytee NA)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64cc3369b6c4d6f7d69403be2e530b9ceec56ee341564be9b06c20cecbfe3344. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/ZA56E2315478.
Ungakhile (feat. Philharmonic, BenyRic, Nation Deep, Rivalz & Mtimban3)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa91d95446a2255b9a143e9bd146db5421dccee0a6e67efa2e761a1509a4095b. 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/USUYG1572561.
Time shxt (feat. Givem Tyler Litch & Djy Fresh)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91a912e8367b5ce2ab3eacfc234bf00c12e846bfef95d66eb2d4a85ff452b9e9. 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/ZA56E2416665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0c8f4503d78e29b0047715614d360c42c5000927ed91a163e5c71248b489f75. 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/GBMA22343723.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dddf3bb51da5dd11249365d0e03816adec133f4c35c138ff57817488f9547eb. 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/QZMER2305871.
Logdrum Tech (feat. Nation Deep, Deestar Za)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x969f506465c0469e665b0d310b8eeeeaf5667a77e180980f4612df489d3232f3. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/ZA56E2315244.
Stena Vs Harvard (feat. Musical_Stylist, Djy Zan SA)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1a978edc5d271813ef0d640c44253cd27f1bb71793115dccd885c8f87df1b1f. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/ZA56E2315253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65d8fea597175c0db167dca311498dbf9eddd1292d5a56a4aadcb09a888df154. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/ZA56E2315481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x928b74c93293e3fec191f7c46c6c9768757a3460417ab23c394bf9abf127cde0. Chain 2 (Bitcoin): anchored in block 960387 (2026-07-31T10:06:30Z), 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/GBLFP2340612.