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 0xe6478d147be5cbd88d26c14b6740da277a3eaae476fa8d008ad579e5c68324d1. 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/d99e5b44-510a-4e22-a37f-48390b8053e3.json and https://artists.proofprofile.net/proofs/artist/d99e5b44-510a-4e22-a37f-48390b8053e3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0xd950baba87a96a0a20ceb8f869f9c63b7c3c4796eef745a3f789ddf760fd4035","isrc":"ES98G2000025","name":"Por Tu Amor Tiemblo","registered_at":"2026-06-18T23:13:26Z","spotify_id":"5YpDvrh0gb6i3enu0LUuHv","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 0xd950baba87a96a0a20ceb8f869f9c63b7c3c4796eef745a3f789ddf760fd4035. 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/5YpDvrh0gb6i3enu0LUuHv.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/5YpDvrh0gb6i3enu0LUuHv.
{"copyright_id":"0x3ac5f8b6d92b2908d69daf0b58faef07bbe2638a88b2af3c0006a3e207322f74","isrc":"ES98G2100038","name":"Amor de Dios","registered_at":"2026-06-22T11:56:36Z","spotify_id":"2lHrqNNhJnvQ7aM4edlEqt","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ac5f8b6d92b2908d69daf0b58faef07bbe2638a88b2af3c0006a3e207322f74. 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/2lHrqNNhJnvQ7aM4edlEqt.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/2lHrqNNhJnvQ7aM4edlEqt.
{"copyright_id":"0xafe36a0f6420e07e8906a1499603723e98dfea8bb03cb5ddfcf6b8bc54298346","isrc":"ES98G2100042","name":"Adorarte y Descansar","registered_at":"2026-06-27T20:10:08Z","spotify_id":"416RBzQpGkhtTZGhjffJ8l","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafe36a0f6420e07e8906a1499603723e98dfea8bb03cb5ddfcf6b8bc54298346. 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/416RBzQpGkhtTZGhjffJ8l.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/416RBzQpGkhtTZGhjffJ8l.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f269c816c90ca961737c54e803c4328d8bc7e29342500bfb714ed72a1d0b1b3. 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/6B9HefFgxXLnHjgzBlzlsC.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/6B9HefFgxXLnHjgzBlzlsC.
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