100 Derece, also known as 100 °C and Yüz Derece (meaning "100 Degrees") is a Turkish ska punk band. They describe their music as a "Punk'n Roll", which is a mixture of 1950s rock n'roll, 1960s reggae
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 0xd31b99c878ca63b79d37e53d922cf56b2c1b160e875f35bfa05801964f4e0db7. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/77163da7-974b-4915-9c23-4f96bfd02f81.json and https://artists.proofprofile.net/proofs/artist/77163da7-974b-4915-9c23-4f96bfd02f81.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 0x8e9776c713fac30b448f7f021888951c63483d4d4ee9d647ae845b8d977978c6. Chain 2 (Bitcoin): anchored in block 958091 (2026-07-15T03:17:03Z), 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/TR0280601270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5e212223841a015a2ce175ac7cf1c8dec0d1eec2299e38775503d1148fca196. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T09:06:59Z), 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/TR0280601277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21ea31c3fa457cf4b7a1b0cd625d7cc7987bcbe2660bc20bbbd33beeab166369. Chain 2 (Bitcoin): anchored in block 957766 (2026-07-12T22:25:04Z), 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/TR0280601272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd0fdcb17bb75c6603ec2c5aa48b486ffb6c72ae79ca14c31388854338e8ec19. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T01:58:26Z), 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/TR0280601273.