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 0x5f3abedf713522482f345a8ec3a5215aa256e39a74d0eb8f0b8bf8eb44bb3421. 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/864af51d-c978-4cd9-a0d9-8d92ca77f997.json and https://artists.proofprofile.net/proofs/artist/864af51d-c978-4cd9-a0d9-8d92ca77f997.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 0x8cc3c06886c222965f1952e9dee3f407524486bf014b68f5cd8f0138fffdecba. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:05:58Z), 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/USK4W0000481.
The Christmas Song (Chestnuts Roasting on an Open Fire) - Single
It's Ecstacy When You Lay Down Next to Me - Single
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x589fe033c77f2f232d798000d7cba6774da7b2711a66f31edef0b35db959bd75. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/USK4W1035138.
All I Want for Christmas is You - Single
One Way or Another (Teenage Kicks) - Single
Let it Snow, Let it Snow, Let it Snow - Single
Hooray! Hooray! It's a Holi-holiday - Single
Don't Upset the Rhythm (Go Baby Go) - Single
What Doesn't Kill You (Stronger) - Single
They Can't Take that Away from Me - Single
All Good Things (Come to an End) - Single
Na Na Hey Hey (Kiss Him Goodbye) - Single
Die Karawane Zieht Weiter... Der Sultan Hät Doosch! - Single
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45b7f9d1e7955d0bf10594964443df8c9022d95590703deb9a1b9f7c3c3494d9. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T20:50:51Z), 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/USK4W1035339.
We are Never Ever Getting Back Together - Single
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13d3d7f2bd36d4b180710bc33f0d714d73ff43114ba58fd94f2123a1f365f51c. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/USK4W0000920.
Habanera (L'amour est un oiseau rebelle) - Single
Let's Go Dancing (Ooh La, La, La) - Single
I Wish it Could Be Christmas Everyday - Single
Single Ladies (Put a Ring on It) - Single
Love Will Never Do (Without You) - Single
Força (Official Song Euro 2004) - Single
I'll Need Someone to Hold Me (When I Cry) - Single
Put a Little Love in Your Heart - Single
Last Night a D.J. Saved My Life - Single