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 0x86d172cf39a50337fd5498985f3ba85ca832984679a0ff7109711066326c9f5e. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8ce93e16-c593-4e63-b7ad-16a7b53e007c.json and https://artists.proofprofile.net/proofs/artist/8ce93e16-c593-4e63-b7ad-16a7b53e007c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Schmackeboom (Voulez-Vous Crac-Crac Avec Moi)
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 0x5727fc7ea38156f7a206e54b2b4f3f521dcd095d71bcfdcc8912ecfba5309187. Chain 2 (Bitcoin): anchored in block 959084 (2026-07-22T00:50:00Z), 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/SEPQA1400710.
Schmackeboom (Do You Want to Fuck with Me)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7b4fa7db4d4d2013d6898ccbc7dff6d514bedffcff19c69d70581f46530b873. 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/SEPQA1400749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07150ad6307acde510cce5a6b51ff1894e1090ee7d4feada5f387248eab4648e. 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/SEPQA1400751.
Schmackeboom (Vill du knulla med mig) [Remixes]
Schmackeboom (Wollen Sie Bumsen Mit Mich)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc79931edc1e7b960514d10f23dd959ed2186d6c3ed1913b6dd2f2741e4068d55. Chain 2 (Bitcoin): anchored in block 958346 (2026-07-17T01:47:42Z), 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/QZWFH2367784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02b089eda780d4a01cb90e35baa8e697d6c6d62772d8e3e28247cb063daed165. Chain 2 (Bitcoin): anchored in block 958721 (2026-07-19T11:02:33Z), 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/QZNWQ2417854.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a7b731c7bfeba6023dd0b9e0e8a7f3fd9ea3e8bc7b1c0ed6cb8d63c0ff8101d. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/QZMEP2505544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4093c59164eb3d8d40f7cbf690bdeb1aeafdeaf14c67ac1d8154df9961c4451. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/QZTB62525171.