1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0xcbff7578b3c680688193d93141cc0e2ac9e7614bee72f7bb401c46089ecb0e46. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1564056b-2095-4cf8-a1b9-bc152241d1be.json and https://artists.proofprofile.net/proofs/artist/1564056b-2095-4cf8-a1b9-bc152241d1be.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Stitch By Stitch (The Voice Performance)
Stitch By Stitch - The Voice Performance
It's The Most Wonderful Time Of The Year
{"copyright_id":"0x5c4dbb7ad493ba682ad1b64ea63caccac27d10faeaf154b779ab15651c81f0a1","isrc":"USUM71105604","name":"Stand By Me - The Voice Performance","registered_at":"2026-06-21T11:57:01Z","spotify_id":"625Kms3bgPgrzCSXFBHf1k","type":"track"}
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c4dbb7ad493ba682ad1b64ea63caccac27d10faeaf154b779ab15651c81f0a1. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/625Kms3bgPgrzCSXFBHf1k.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/625Kms3bgPgrzCSXFBHf1k.
Man In The Mirror - The Voice Performance
Man In The Mirror (The Voice Performance)
{"copyright_id":"0x5900e68fd027015b4404168cfd4b17240668398c74f263e533f8f64f3b2d460f","isrc":"USUM71110610","name":"Man In The Mirror - The Voice Performance","registered_at":"2026-06-04T13:55:35Z","spotify_id":"2zSxo9FebD1H3kk7bTxNzA","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5900e68fd027015b4404168cfd4b17240668398c74f263e533f8f64f3b2d460f. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2zSxo9FebD1H3kk7bTxNzA.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2zSxo9FebD1H3kk7bTxNzA.
{"copyright_id":"0xfaf710effe8e02b0d721146533ddceb4eaa7e8051f3497cef29b46c9156d0fa1","isrc":"QMDPP1700483","name":"No Rest","registered_at":"2026-06-11T05:11:36Z","spotify_id":"4i06sxrxhiQT4lHfHZhmrP","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaf710effe8e02b0d721146533ddceb4eaa7e8051f3497cef29b46c9156d0fa1. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4i06sxrxhiQT4lHfHZhmrP.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4i06sxrxhiQT4lHfHZhmrP.
Dave Koz And Friends 20th Anniversary Christmas
Team Adam – The Blind Auditions (The Voice Performances)
Battle Duets - May 17, 2011 (The Voice Performances)
{"copyright_id":"0x5c4dbb7ad493ba682ad1b64ea63caccac27d10faeaf154b779ab15651c81f0a1","isrc":"USUM71105604","name":"Stand By Me - The Voice Performance","registered_at":"2026-06-21T11:57:01Z","spotify_id":"7xKSA6i5XfgVs88Ce6Z9xz","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c4dbb7ad493ba682ad1b64ea63caccac27d10faeaf154b779ab15651c81f0a1. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7xKSA6i5XfgVs88Ce6Z9xz.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7xKSA6i5XfgVs88Ce6Z9xz.