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 0xd56341fe88a6ab9a46b1f92e59b30f94a6ba0e7f644fcd9f5fe13eb94204bdd1. Chain 2 (Bitcoin): anchored in block 953626 (2026-06-14T11:41:45Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/269f588c-6c0c-4b11-954c-af70139d5de2.json and https://artists.proofprofile.net/proofs/artist/269f588c-6c0c-4b11-954c-af70139d5de2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Cigarettes After Sex (Instrumental Covers)
Apocalypse - (Cigarettes After Sex Instrumental Cover)
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 0xa867911cc94b623961186227b4cc9d6cd5dc7e8fd705c541f7c4435daf355a30. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:11:07Z), 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/QZVEM1866134.
K. - (Cigarettes After Sex Instrumental Cover)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x357e304313248e8897364d1521d0cf137c0a65cd05af620d8640df20192d23e1. Chain 2 (Bitcoin): anchored in block 958834 (2026-07-20T05:55:47Z), 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/QZVEM1866136.
Cry - (Cigarettes After Sex Instrumental Cover)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b3cb368b1a9783377b82f89c5a3998ff074237c4be88557f8e5e5eb1c48756f. 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/QZVEM1866137.
Heavenly - (Cigarettes After Sex Instrumental Cover)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe44c7d77cd288b8fdb67f2fdfb4c6471034d337c1bc563a9a398663731367141. Chain 2 (Bitcoin): anchored in block 958617 (2026-07-18T22:07:13Z), 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/QZVEM1866139.
Keep On Loving You - (Cigarettes After Sex Instrumental Cover)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f7d5b41615d9821da18f52d4f195b2f54c23ec7bfeb4f7492809c79be14d960. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZVEM1866140.
John Wayne - (Cigarettes After Sex Instrumental Cover)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c3a66bc21a1159c10efb4162b385fa7916961872959cb294a9ff0760b9a19c0. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZVEM1866141.
Marble Floors (Summrs Instrumental Covers Alt Ver.)
Marble Floors (Summrs Instrumental Cover)
Out Getting Ribs (King Krule Instumental Cover)
Out Getting Ribs - King Krule Instumental Cover
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7738e9e82df558d05ac840f58782706e88c3f491b38571da2ee3ea21aceef9f3. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZPEW2500985.
Out Getting Ribs (King Krule Instrumental Cover Alt Ver.)
Indigo Night (Tamino Instrumental Cover)
Indigo Night (Tamino Instrumental Cover Alt Ver.)
No One Noticed (The Marías Instrumental Guitar Cover Alt Ver.)
No One Noticed (The Marías Instrumental Guitar Cover)
We Not Like You (Nettspend Instrumental Covers Alt Ver.)
We Not Like You (Nettspend Instrumental Cover)
Nothing LIke Uuu (Nettspend Instrumental Cover Alt Ver.)
Nothing LIke Uuu (Nettspend Instrumental Cover)
Losing My Mind (Baby Smoove Instrumental Covers Alt Ver.)
Losing My Mind (Baby Smoove Instrumental Cover)
Where Is My Mind? (Pixies Instrumental Covers Alt Ver.)
Where Is My Mind? (Pixies Instrumental Cover)
Congratulations (Mac Miller Instrumental Covers Alt Ver.)
Congratulations (Mac Miller Instrumental Cover)