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 0xeff1be3d5491c8dad5317e23630f7f3ee8f64ad466fe122b6e8500b7364b123e. 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/fd78d75f-fa92-4768-9813-693d7310cc00.json and https://artists.proofprofile.net/proofs/artist/fd78d75f-fa92-4768-9813-693d7310cc00.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 0xe51f52ec3b575c7e52d8cea35b2ad768554483d229c582b41bd92c0760513d73. 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/ZAG8M2401146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe32f677e76230a342dffbc9108f681f4cf15ca25d92e114157440b18e466d3dc. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-21T20:56:32Z), 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/ZAG8M2401139.
Marrabenta (Pés Pretos)' - Kid Fonque Remix - Radio
Marrabenta (Pés Pretos) [Kid Fonque Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x452f655626bea4254e44567a10fab36b161e96b8f80e795c85c2f96c76bc36d4. 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/UKYYZ2000293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44bb318ee3ad00adef6e0aa1029dc3bcb58fad0f9b2d7b79ac63763248eef933. Chain 2 (Bitcoin): anchored in block 959132 (2026-07-22T13:20:46Z), 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/GBCPZ2220993.
Tshamiseka (feat. Khensy&) - Hypaphonik Derived Dub
Stay True Sounds Vol.3 (Compiled by Kid Fonque)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x115cc54966eaf32a92edcdaa302129c1ef0acf021e798defba51ed49cf8162b1. 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/UK4JC2100020.
Tshinela (feat. Khensy & Fernando Damon) - Fka Mash Re-Glitch
Tshinela (feat. Khensy & Fernando Damon)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfa22f7e791ea4aacd3f3ffbcd5f2486cbfccf9df01e7ddd55794e3a1ae7ce5c. 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/ZAG8M2100740.
Somewhere ft Jaidene Veda (feat. Jaidene Veda)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc86166c818874410cb6a07fa0d7f6df4493e97978e1bc88809f435c74c42e513. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/ZAG8M2100748.
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
Stay True Sounds Vol.4 Compiled By Kid Fonque
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a0291161b9b031f8e8f669b36d95b688abb6b599370801c40d2f9124c93482e. Chain 2 (Bitcoin): anchored in block 960379 (2026-07-31T09:25:34Z), 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/ZAG8M2200828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd43cc8da27724c708df4aaec3c3ff33b64882760e141b358973874aef9eaeca. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/ZAG8M2000401.
Tshinela (feat. Khensy & Fernando Damon) - Fka Mash Re-Glitch Radio Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43add8e55779d7f96514e9ee8463f98d81f5a44da731a1b800b9bf7a515fcc32. 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/ZAG8M2100741.