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 0xba07154e509c167b5503de0834fa99fcf11c015401fbd55c3957ccf7b13533b8. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a2e6aa76-b64a-49e1-8b55-7b6d28387716.json and https://artists.proofprofile.net/proofs/artist/a2e6aa76-b64a-49e1-8b55-7b6d28387716.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 0xfcfe7fec603df6b5792c36dc1d37337e61a0340095bd45bf3a06f9e8186783ac. 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/19F0MuZ5aCoDeqOhE7pTek.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/19F0MuZ5aCoDeqOhE7pTek.
Que Pare el Que Tenga Frenos (feat. Lobo King Dowa)
{"copyright_id":"0x570ae7249f9616b3e86fb8a7aae8c0765be99023e1f120a2a42d9f14b5ba88f3","isrc":"QZEZZ2100687","name":"Lo que brilla no es oro","registered_at":"2026-06-10T18:36:02Z","spotify_id":"7bil0DZProcrbccF3ndi6y","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x570ae7249f9616b3e86fb8a7aae8c0765be99023e1f120a2a42d9f14b5ba88f3. 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/7bil0DZProcrbccF3ndi6y.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/7bil0DZProcrbccF3ndi6y.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76fc374c0fd8a1479dc9648f8751cc56946a61867f7846ecbd9f2f9379110442. 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/0LbsemmcuUiDYHFKcw8QBk.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/0LbsemmcuUiDYHFKcw8QBk.
I Dance Cuban Salsa 2016 (Salsa y Timba Hits)
{"copyright_id":"0x7b401a59db4724ef0d62bc7401af9c59f8c26973d864fb1af7bfacf9add39f3c","isrc":"ITAC21600147","name":"Papi No Hagas Nada","registered_at":"2026-06-18T14:27:37Z","spotify_id":"1L9yY3I6dD0XhOEpDVmdGJ","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b401a59db4724ef0d62bc7401af9c59f8c26973d864fb1af7bfacf9add39f3c. 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/1L9yY3I6dD0XhOEpDVmdGJ.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/1L9yY3I6dD0XhOEpDVmdGJ.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f940ff44dd9bd7f09e3fe31845eaa790d6dfc3cb2a1ef1c6e56f5a78943ce56. 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/7KIllNTuM9WVpVDgffnHda.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/7KIllNTuM9WVpVDgffnHda.