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 0xf362d05271e7ef09f9b1fdac757ca23a7abe0d73c57ed6bfcef4329f9bba5a5b. 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/0612d015-a15c-4ff3-b553-4bff64e62168.json and https://artists.proofprofile.net/proofs/artist/0612d015-a15c-4ff3-b553-4bff64e62168.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Nostalgia - Mira & Chris Schwarzwalder Remix
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 0x5b350f29e3e20604307222d3d62a8fed4d54a6566104b7a92672fbd439c2a52e. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1LVjDdhjlIlkUHl9YOjv77.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/1LVjDdhjlIlkUHl9YOjv77.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b80e908658a9b468344c34782b328e8390c29d27f912874fdb353f5f9e33cbe. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3l1mFLJy7vxpKuxM4pyPyo.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/3l1mFLJy7vxpKuxM4pyPyo.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80ce9bfbd505be87a8022c53ac9556c1e85e5696cc2293bc3e50bcf3041c8848. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4bfQQJi0G8gtt0FZQZcn7e.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/4bfQQJi0G8gtt0FZQZcn7e.
Bar 25 Music presents: Sounds of Sirin, Vol. 3
{"copyright_id":"0x2293533e4212e6d52c793ba6c9801d6bb65c5c5bade1d14e6bc2bfaae7079316","isrc":"US3DF2496039","name":"El Malevo (La Noche)","registered_at":"2026-06-08T23:20:41Z","spotify_id":"0E2yRva7UxLtzeDxtbASxx","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2293533e4212e6d52c793ba6c9801d6bb65c5c5bade1d14e6bc2bfaae7079316. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0E2yRva7UxLtzeDxtbASxx.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/0E2yRva7UxLtzeDxtbASxx.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80ce9bfbd505be87a8022c53ac9556c1e85e5696cc2293bc3e50bcf3041c8848. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1wouwzM83EclwxreBlEdvL.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/1wouwzM83EclwxreBlEdvL.