Skarface is a French ska band that started in 1991. Their music includes influences from ska, punk rock and other genres. They have produced one CD almost every year of their existence. They have per
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 0x73dcaf7e39a54d469360ee9cb2184a5f9d193caf028cea857f61bca8240153e2. Chain 2 (Bitcoin): anchored in block 953614 (2026-06-14T08:40:32Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1505963b-5a97-454b-bc5f-49464b329a1e.json and https://artists.proofprofile.net/proofs/artist/1505963b-5a97-454b-bc5f-49464b329a1e.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 0xeac54fee76d940c51e65c1cb172afcc71192bfeb31904fd905c5449effcd78b9. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/CH6542242380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f273187b702d3830a58637ff9ffde1ff8b34f0cc3de542c01af869a4f956576. 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/CH6542242319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61030614d9d35e3c8ca288321d32fb0e5bec733d21bbcb8a96edf6af9be8126c. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/CH6542240078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7eebaace0efec113a70efe4a59eeef6e95b3073a615e73db91e74977a5ea3792. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T21:28:20Z), 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/CH6542240084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x453d98246cf23f46eb466cddece389ee4ddcfaa9ac012828dda1a0b88f6d2273. Chain 2 (Bitcoin): anchored in block 958682 (2026-07-19T06:17:12Z), 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/CH6542241882.
30 Years Non-Stop of Chaotic-Clockwork-Ska (Remastered)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a227369b26b9ed6ade3ca3fb760be1c88619704b86ec73eb8261298bc311b13. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/CH6542381036.