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 0x0228772b02bce5ef4721447e969674eee4b129d4de43bdd01d48e3856686ee83. 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/c6b405cc-1eba-4e81-ad49-db05fcd0b3ac.json and https://artists.proofprofile.net/proofs/artist/c6b405cc-1eba-4e81-ad49-db05fcd0b3ac.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Ngenzenjan (feat. Mdu a.k.a TRP & T&T MuziQ)
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 0x9afa83a0563daa5965df1c8bdc8c5a90f2b8ad1f2c65b6f995d0036c9ca38df7. 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/ZA56E2416274.
The LandLord$ (feat. Bandros, DJ Mydowa & Kaliedo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3fa254bd0bcd450464ba334994d8896e3de51c1373a774f8b941bdd11b5d72a. 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/ZA56E2416138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17000eaf23959c579d2e2c5a0b7c33d28d1d18e590f725cab2f77a048f6a043d. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/ZAYZY2100004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11274f5f9f0b726086e84b2d28b90a963e17e6e1d44079af1d56c8ec27d8b158. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/ZA56E2416136.
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 0x9b654a42d088af326bf20e062d7c1cfb442c1a4d24048f9fd15a16889e5b89d4. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/ZA56E2416137.
Kumnandi (feat. Josiah De Disciple & Springle)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55fb2a10d5c74a56f7ffd3325b0372cb1c346edc8e86c878d75847994aed75a9. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/ZA56E2416140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bdacceaef572138cd7bdf4b7de093fa6136efe85abb290a998fa69f788fad8a. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/ZA56E2419823.
Mbali (feat. Sonini, AMAQHAWE, T&T MuziQ, TORQUE MUZIQ)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37afed8b3c76a2a3e31d19135c1a43ff81d8b4b0357f5c7402d3e6d1a698a427. Chain 2 (Bitcoin): anchored in block 960173 (2026-07-30T00:11:40Z), 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/ZA56E2415691.
Dali (feat. Springle, JayJayy, T&T MuziQ)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2716db1aa51364f91508625503b0635f3397e65d0ee8da899f83912ea30c13e. Chain 2 (Bitcoin): anchored in block 960200 (2026-07-30T02:37:10Z), 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/ZA56E2415693.
Myekeleni (feat. AMAQHAWE, Philharmonic)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x911b8c11c5019bfbce26005c8e7ee31327753cc6a02591440bea7ccbf6a88243. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/ZA56E2415694.