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 0x5cb082752cd6a2a77cb5d7c6e89d5a01514ba5f5c3eaee3fe121e8b2c5411d0a. Chain 2 (Bitcoin): anchored in block 953803 (2026-06-15T15:41:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e69ae839-0116-441f-9f3c-d01fb7929ad2.json and https://artists.proofprofile.net/proofs/artist/e69ae839-0116-441f-9f3c-d01fb7929ad2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Karaoke Hit Mix 2010 Vol. 6 - 15 Chart Hits
Karaoke Hit Mix 2010 Vol. 8 - 15 Chart Hits
Karaoke Hit Mix 2010 Vol. 3 - 15 Chart Hits
Karaoke Hit Mix 2010 Vol. 2 - 15 Chart Hits
Karaoke Hit Mix 2010 Vol. 7 - 15 Chart Hits
Karaoke Hit Mix 2010 Vol. 4 - 15 Chart Hits
Karaoke Hit Mix 2010 Vol. 5 - 15 Chart Hits
Karaoke Hit Mix 2010 Vol. 1 - 15 Chart Hits
Karaoke Hit Mix 2010 Vol. 9 - 15 Chart Hits
Karaoke Hit Mix 2010 Vol. 10 - 15 Chart Hits
Karaoke Hit Mix 2010 Vol. 11 - 15 Chart Hits
Karaoke Hit Mix 2010 Vol. 12 - 15 Chart Hits
Multi Karaoke - Famous Reggae Hits, Volume 1
Multi Karaoke - Hits & Evergreens, Volume 3
Multi Karaoke - Hits & Evergreens, Volume 5
Multi Karaoke - Hits & Evergreens, Volume 10
Multi Karaoke - Hits & Evergreens, Volume 2
Multi Karaoke - Hits & Evergreens, Volume 4
Multi Karaoke - Hits & Evergreens, Volume 6
Multi Karaoke - Hits & Evergreens, Volume 1
Multi Karaoke - Hits & Evergreens, Volume 8
Multi Karaoke - Hits & Evergreens, Volume 9
Multi Karaoke - Hits & Evergreens, Volume 7
Multi Karaoke - Backing Force Tribute To Abba
Multi Karaoke - Hollandse Hits, Volume 2
Multi Karaoke - Backing Force Tribute To Ace Of Base
Multi Karaoke - Famous Evergreens, Volume 1
Multi Karaoke - Hollandse Hits, Volume 1
Multi Karaoke - Backing Force Tribute To Tina Turner
Multi Karaoke - The Hits Of '96, Volume 1
Multi Karaoke - Famous Lovesongs, Volume 1
Multi Karaoke - Backing Force Tribute To Madonna
Multi Karaoke - Famous Country Hits, Volume 1
Karaoke Summer Hits Series ..... Part 10
Karaoke - David Bowie: Greatest Hits, Pt. 2
Karaoke - David Bowie: Greatest Hits, Pt. 1
Ultraviolence (Karaoke Version) [Originally Performed by Lana Del Rey] - No Backing Vocals
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 0xb24614c97bd55c5ce381801b4ceb3658b3314cc843afcefa001c9b535e419e7a. Chain 2 (Bitcoin): anchored in block 958476 (2026-07-18T01:26:56Z), 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/NLAX61493802.
Heroes (We Could Be) [Originally Performed by Alesso feat. Tove Lo] [Karaoke Version]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x922bf48e50541939a17f0b9f5c3cd873e4dc576be9ed3a4dd266766facceb86e. Chain 2 (Bitcoin): anchored in block 958670 (2026-07-19T05:26:23Z), 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/NLAX61494532.
Karaoke Dance Club Hit Mix - 2015 - Vol. 1
Fresh Karaoke Hits - 2015 - Vol. 7 (20 Brand New Songs to Sing Along)
Fresh Karaoke Hits - 2015 - Vol. 6 (20 Brand New Songs to Sing Along)
Fresh Karaoke Hits - 2015 - Vol. 5 (20 Brand New Songs to Sing Along)
Karaoke Dance Club Hit Mix - 2015 - Vol. 2
Karaoke Dance Club Hit Mix - 2015 - Vol. 3
Karaoke Hot Summer Hits - 2015 - Vol. 4 (20 Sunny Songs to Sing Along)
Karaoke Hot Summer Hits - 2015 - Vol. 3 (20 Sunny Songs to Sing Along)
Karaoke Hot Summer Hits - 2015 - Vol. 5 (20 Sunny Songs to Sing Along)
Karaoke Hot Summer Hits - 2015 - Vol. 2 (20 Sunny Songs to Sing Along)
Karaoke Hot Summer Hits - 2015 - Vol. 1 (20 Sunny Songs to Sing Along)
Karaoke Dance Club Hit Mix - 2015 - Vol. 5
Karaoke Dance Club Hit Mix - 2015 - Vol. 4
Karaoke Dance Club Hit Mix - 2015 - Vol. 6
Karaoke - Greatest Hits of David Bowie - 50 Songs to Singalong!
Karaoke Dance Club Hit Mix - 2015 - Vol. 7