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 0xa634d884c35e1bce95afb3cfadb7d894cfa8a7ed5fe682ed23a807d33646cbf4. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a37a10fc-c52b-44a5-973e-93a2ee3f41f0.json and https://artists.proofprofile.net/proofs/artist/a37a10fc-c52b-44a5-973e-93a2ee3f41f0.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 0xd02d1b5c7ebbec28749586594e101ddbbb637b98c1462f4c34da8b449ec90222. 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/2zvcSbdgTegRfoh9qiTVic.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/2zvcSbdgTegRfoh9qiTVic.
Shot Off Gumbo (feat. YTB Fatt & Fat Wizza)
{"copyright_id":"0x3cac0f97a8f72ba4daced4d430f0fc37b153fceb84342202ea14f3fbc107b864","isrc":"USUM72308126","name":"Shot Off Gumbo (feat. YTB Fatt & Fat Wizza)","registered_at":"2026-06-04T10:13:55Z","spotify_id":"0t9y4z9n3BOjRJvOx5fZHa","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cac0f97a8f72ba4daced4d430f0fc37b153fceb84342202ea14f3fbc107b864. 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/0t9y4z9n3BOjRJvOx5fZHa.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/0t9y4z9n3BOjRJvOx5fZHa.
{"copyright_id":"0xe1b9a89262eaa584e6c6329241a1f958741ef78cb3cab7aff875d8420a5adcf8","isrc":"USAT22204333","name":"Hunting Opps (feat. Fat Wizza)","registered_at":"2026-06-06T04:55:26Z","spotify_id":"5STKbydnpV80a3mYWzHrNw","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1b9a89262eaa584e6c6329241a1f958741ef78cb3cab7aff875d8420a5adcf8. 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/5STKbydnpV80a3mYWzHrNw.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/5STKbydnpV80a3mYWzHrNw.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2732cbd1de83417223f96b7cda2ed0897931d7739629a957caf51473d7eb35ba. 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/7mhFwoAU7s021w2sIzmZSY.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/7mhFwoAU7s021w2sIzmZSY.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5d65f44aad9d242c032d16575f245b0c85a3dd81d0d80e5977df5485c135c64. 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/1etrfJq1PIyUyADSHQLAks.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/1etrfJq1PIyUyADSHQLAks.