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 0x73b482d94696b2721e890eeafbe0ad52389d6adb7bf16bc1a48110aeaa78e0c1. 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/5fa514ae-493c-42e4-b59d-22cec97afb1c.json and https://artists.proofprofile.net/proofs/artist/5fa514ae-493c-42e4-b59d-22cec97afb1c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Ghost Of A Chance - Wilfred Giroux Remix
{"copyright_id":"0x3c8fe8e5ae0444e4651867fe3d29ec8ea889a03a0aba8361f353d43a0e829de1","isrc":"GBKPL2036170","name":"Riot! - Young & Sick Remix","registered_at":"2026-06-20T03:05:57Z","spotify_id":"4bq3TkhME9Guhljp6dlZjB","type":"track"}
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 0x3c8fe8e5ae0444e4651867fe3d29ec8ea889a03a0aba8361f353d43a0e829de1. 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/4bq3TkhME9Guhljp6dlZjB.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/4bq3TkhME9Guhljp6dlZjB.
{"copyright_id":"0x3c8fe8e5ae0444e4651867fe3d29ec8ea889a03a0aba8361f353d43a0e829de1","isrc":"GBKPL2036170","name":"Riot! - Young & Sick Remix","registered_at":"2026-06-20T03:05:57Z","spotify_id":"5t1lcdEkSMJlICD62gJgCQ","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c8fe8e5ae0444e4651867fe3d29ec8ea889a03a0aba8361f353d43a0e829de1. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5t1lcdEkSMJlICD62gJgCQ.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/5t1lcdEkSMJlICD62gJgCQ.
They Might've Even Loved Me (Re:Imagination)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfac662968f99395b5b16ac56cdfbcf39b3dafef509ec8d43fc2338c58e8b8c8b. 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/5Q7GGYEXlfvN80SNwtTJ3t.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/5Q7GGYEXlfvN80SNwtTJ3t.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d79449dbf0ffce3ce061adda9ab3df4920cd4161746b66d62be290808e63679. 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/6AoKUJH9O8RfKoqJwij2zV.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/6AoKUJH9O8RfKoqJwij2zV.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a1055efde1c8b21c79b429838b4d40bc2820712846e743e4fbc21b133929817. 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/3GC7B6DYELiw9FTI3sSz5Q.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/3GC7B6DYELiw9FTI3sSz5Q.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba5149976404bdeeed6fc49e5671e66e9c3bde1a85be14468ed0678c778fc169. 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/6fQXKsu03AMPYwtiVIFZ63.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/6fQXKsu03AMPYwtiVIFZ63.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeecdd4ef32c5d5bad11969af5354b0a5fbafada5408eb025f448d686803c1905. 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/4OpZ2amXS5Iv0f1v4DsN5o.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/4OpZ2amXS5Iv0f1v4DsN5o.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba5149976404bdeeed6fc49e5671e66e9c3bde1a85be14468ed0678c778fc169. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/69GwqcIsOeFr0r9hXvoWY9.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/69GwqcIsOeFr0r9hXvoWY9.
Connection - Reznik & Good Guy Mikesh Remix
{"copyright_id":"0xdc2f0de6422a0b917e40ad9496b4f9f08c08005d7b33460239e2402b8611c9e8","isrc":"FR91F1900500","name":"Connection - Reznik & Good Guy Mikesh Remix","registered_at":"2026-06-20T06:01:53Z","spotify_id":"0gXQS59sTHLx5UVZuuHI3V","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc2f0de6422a0b917e40ad9496b4f9f08c08005d7b33460239e2402b8611c9e8. 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/0gXQS59sTHLx5UVZuuHI3V.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/0gXQS59sTHLx5UVZuuHI3V.