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 0xda900eccd9af1be7adc0507dfec35fa8c080e83e11a39513458631b70fd4425c. 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/16faca16-5ad5-48b1-8c92-5d167e352043.json and https://artists.proofprofile.net/proofs/artist/16faca16-5ad5-48b1-8c92-5d167e352043.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0x6c6b0622249f8ae75c403b72e4837ca084f0e6694438f2c2120c4418129d7728. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4BuEyd19EcZdhYt1UzzM5Y.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/4BuEyd19EcZdhYt1UzzM5Y.
Keep You in Mind - EC Twins Extended Mix
Keep You in Mind - Recorded at Spotify Studios NYC
Yesterday - Recorded at Spotify Studios NYC
{"copyright_id":"0x5569e5acbf17b4a92aeef137a37a40276eddc05b073427a6efbba46830cf03f3","isrc":"QMPKX1886639","name":"Heaven or Hell","registered_at":"2026-06-04T09:32:06Z","spotify_id":"0abcSIfks6YA4QNBomdfOm","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5569e5acbf17b4a92aeef137a37a40276eddc05b073427a6efbba46830cf03f3. 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/0abcSIfks6YA4QNBomdfOm.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/0abcSIfks6YA4QNBomdfOm.
These Scars (feat. Future and Guordan Banks)
{"copyright_id":"0x20180e5137d36ef228d69c7421b3c47cf32fcf74994ab767c99ea5c546588457","isrc":"USAT21702439","name":"These Scars (feat. Future and Guordan Banks)","registered_at":"2026-06-06T15:20:32Z","spotify_id":"6X0V85QasH3lTS18dEbEvY","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20180e5137d36ef228d69c7421b3c47cf32fcf74994ab767c99ea5c546588457. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6X0V85QasH3lTS18dEbEvY.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/6X0V85QasH3lTS18dEbEvY.
{"copyright_id":"0x20180e5137d36ef228d69c7421b3c47cf32fcf74994ab767c99ea5c546588457","isrc":"USAT21702439","name":"These Scars (feat. Future and Guordan Banks)","registered_at":"2026-06-06T15:20:32Z","spotify_id":"3HNCMMsR5ScZE87K6olm5A","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20180e5137d36ef228d69c7421b3c47cf32fcf74994ab767c99ea5c546588457. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3HNCMMsR5ScZE87K6olm5A.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/3HNCMMsR5ScZE87K6olm5A.
Two Wrongs (feat. Guordan Banks & Pusha T)
{"copyright_id":"0x22469fe16f137540c75492e36f10b4bcac01bfd69e5e517c4cd5efa6c3d48c61","isrc":"USAT21603046","name":"Two Wrongs (feat. Guordan Banks & Pusha T)","registered_at":"2026-06-06T18:29:20Z","spotify_id":"5OWI8KlWLgfdx1OdwOhza2","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22469fe16f137540c75492e36f10b4bcac01bfd69e5e517c4cd5efa6c3d48c61. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5OWI8KlWLgfdx1OdwOhza2.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/5OWI8KlWLgfdx1OdwOhza2.
To Whom it May Concern (feat. Cam'ron, Guordan Banks, Benny the Butcher & Conway the Machine)
{"copyright_id":"0x2194b5f4a459587c9cbf5ff27b45e84348474510135fe54174845805cc4b7fc8","isrc":"USUYG1255757","name":"To Whom it May Concern (feat. Cam'ron, Guordan Banks, Benny the Butcher & Conway the Machine)","registered_at":"2026-06-10T15:37:44Z","spotify_id":"0UZS4W7SDJh7ey5ldKI99u","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2194b5f4a459587c9cbf5ff27b45e84348474510135fe54174845805cc4b7fc8. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0UZS4W7SDJh7ey5ldKI99u.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/0UZS4W7SDJh7ey5ldKI99u.
Insecure: Music from the HBO Original Series
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c6b0622249f8ae75c403b72e4837ca084f0e6694438f2c2120c4418129d7728. 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/5tll5dwaclixiFvzOfu2Hw.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/5tll5dwaclixiFvzOfu2Hw.