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 0x8da70e9a14713a781b90b8d647561235038d92f146fa5d91c6d6439d44d92176. 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/b219f50e-dc07-431a-8f1c-a9017823a6a6.json and https://artists.proofprofile.net/proofs/artist/b219f50e-dc07-431a-8f1c-a9017823a6a6.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 0x120b2e871c983430694c296b4d681a56c3f03fb3c2e52f8765282e1c4f5611dd. 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/7kLYz90nUy2uqiNK5OZZrT.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/7kLYz90nUy2uqiNK5OZZrT.
Bird Talk (Certified Trapper Bird Talk mixx)
Bird Talk - Certified Trapper Bird Talk mixx
Slipped Up (Certified Trapper Slipped Up mixx)
Slipped Up - Certified Trapper Slipped Up mixx
{"copyright_id":"0x6355876d0bc315a93566abbe9fd342da50a357d5aa3857dfbe5c49d14ea40b8b","isrc":"USUYG1534414","name":"3 Stooges","registered_at":"2026-06-04T10:13:19Z","spotify_id":"0cBtPYUdQhLAsoTwUnSTwE","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6355876d0bc315a93566abbe9fd342da50a357d5aa3857dfbe5c49d14ea40b8b. 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/0cBtPYUdQhLAsoTwUnSTwE.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/0cBtPYUdQhLAsoTwUnSTwE.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x316ab0f782551582d8980a1090c3cf2e3b6204d99a3db06e1a1c8fef80494447. 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/2aA3Xz6XKAo96jp03h4Zak.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/2aA3Xz6XKAo96jp03h4Zak.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61e04eeeab0fe4247cfa1f8884141419686a31498b91b592c36d10b83000af4b. 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/45dlABses2gHrp8QNAhTGY.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/45dlABses2gHrp8QNAhTGY.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e9c2f69ad6ebfe2235497a5414acea070065b1459d78cdd13e73b253501be67. 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/1YXk88BKcd1oUxGfjil0oF.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/1YXk88BKcd1oUxGfjil0oF.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4707b15b2971dd999f7e6f3f796a29851b38f8d37536416bd3af0993a8a95665. 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/74SgXxxpsSbNVeYh1CP5mx.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/74SgXxxpsSbNVeYh1CP5mx.
{"copyright_id":"0x8e9c2f69ad6ebfe2235497a5414acea070065b1459d78cdd13e73b253501be67","isrc":"USUYG1493281","name":"Back On Tour","registered_at":"2026-06-10T14:18:07Z","spotify_id":"3gtmLvuUHVyFwHMRt2EYvy","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e9c2f69ad6ebfe2235497a5414acea070065b1459d78cdd13e73b253501be67. 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/3gtmLvuUHVyFwHMRt2EYvy.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/3gtmLvuUHVyFwHMRt2EYvy.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6489dff433d3267ee37bbae1323f53fe9794643f270c95265a5089da6e725fc. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6KtMIRQQhyGZ9hf0VlzDxo.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/6KtMIRQQhyGZ9hf0VlzDxo.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7677aa5b28c2aff574af725d6f4cc950a1b291d759648d59b2e90036144b571d. 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/7vRV2iRCg82fhu5Z7rEEAn.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/7vRV2iRCg82fhu5Z7rEEAn.