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 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 0x6c74f3333d3d47809266ea86f5b61c2e54805fa1e63990cba2d9c0afe424dc7b. Chain 2 (Bitcoin): anchored in block 953681 (2026-06-14T19:31:23Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/645c3b81-5d8f-4734-98ce-ca1143ea71f9.json and https://artists.proofprofile.net/proofs/artist/645c3b81-5d8f-4734-98ce-ca1143ea71f9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Rolling Stone (feat. featuring_me) [SvenDeeKay feat. featuring_me]
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 0xe3f682da2abeef282d56b2bfdcf897b294ec5d2e498ac9256b191bb1280d3954. Chain 2 (Bitcoin): anchored in block 958185 (2026-07-15T18:19:04Z), 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/DEVT82400150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabde21e10251c4bc5f3e5c710ac98767993bfd4adeebd52effc97834e5a35453. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/DEVT82400152.
Let's Get Loud (Jens O. Hypertechno Remix)
Let's Get Loud - Block & Crown Dope Demand Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18490abd9da0977f660dba17b1df82358204997fe9356b2116a93c093fdc5306. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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/DEVT82400156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81b6a8e2ae05c25b89fa6abe0d7634e36165b8488ffa72c1bc284a840e93811e. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/DEVT82400490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc65d31efa27fe21028f24f2c17a69e81723de5cad6a9515528cb88d70dfdd50b. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/DEVT82400493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90fa8b6073e6fef156170311d29412b2112feea00c3a45a08a5906cb6b5d3c82. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/DEVT82400495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81b6a8e2ae05c25b89fa6abe0d7634e36165b8488ffa72c1bc284a840e93811e. 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/DEVT82400490.