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 0x26cb8e5ae306d5660305b1e93fdc453755ddc4d6c6297a458b30489c532d77a4. 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/a35980e0-86ca-4e81-81fa-7ba1973ee09e.json and https://artists.proofprofile.net/proofs/artist/a35980e0-86ca-4e81-81fa-7ba1973ee09e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Felipe Flip no Estúdio Showlivre (Ao Vivo)
{"copyright_id":"0x1b1a0db621c4b637deb2f936abd4093879b6029f08b0169e9a3a69a48eef3428","isrc":"BXFLW2000005","name":"O Que Ela Quiser","registered_at":"2026-06-18T05:07:25Z","spotify_id":"4h9TRCeAwxeot3cFFXH4sN","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 0x1b1a0db621c4b637deb2f936abd4093879b6029f08b0169e9a3a69a48eef3428. 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/4h9TRCeAwxeot3cFFXH4sN.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/4h9TRCeAwxeot3cFFXH4sN.
Felipe Flip No Estúdio Showlivre Vol. 2 (Ao Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d7ae18f73b45bb8e134f6e777e44b5f8b2eb195e3b85c8505d0d43e623be34f. 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/2GpwuvazmSSvUnXUNMnMq3.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/2GpwuvazmSSvUnXUNMnMq3.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c4e085e0c7d9b155647277b5bb601533ff0b3c03611287c886b2182d056802c. 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/5Y8ZSZ13zkzYNiUouyB3ir.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/5Y8ZSZ13zkzYNiUouyB3ir.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x251b553fd0d775f653dad233263bae6f3235f76298ef8006100dc1419736c28a. 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/5yQL9OowHekoZrXVqjnY2w.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/5yQL9OowHekoZrXVqjnY2w.
{"copyright_id":"0x9967b3443daa5ffe3a0a28cea411ad5d10889cf804b9c6b10081c8c45c54ace2","isrc":"BXFLW1600003","name":"Atmosfera Abstrata","registered_at":"2026-06-08T12:19:10Z","spotify_id":"6DvtHqoc9iwMYAiKr0KBGY","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9967b3443daa5ffe3a0a28cea411ad5d10889cf804b9c6b10081c8c45c54ace2. 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/6DvtHqoc9iwMYAiKr0KBGY.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/6DvtHqoc9iwMYAiKr0KBGY.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x653256b5b1d34fbcf0b964e684bed65503a5581ae71b956bf64d4c633f838603. 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/1wgFwsAmOoP3pkA0IgYmCE.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/1wgFwsAmOoP3pkA0IgYmCE.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5785c98b8ed10c9dfb860960db05d33bae2ed28b2c16c19a3bcd956e98b3904. 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/0rwIdDv0iJrFwNGyybFtw6.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/0rwIdDv0iJrFwNGyybFtw6.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66b5087dc68497693c9bd772e271223a485df1eeafde19081764a124d16e51d3. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2TQZ5UkBlh6ZzcvUs50uWl.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/2TQZ5UkBlh6ZzcvUs50uWl.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b3aedec4301a67eab789cdc4916f01a0862c4ba0bb0a5d8af394496cab63798. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2U9NwyLux0jIhzkdAkiDNP.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/2U9NwyLux0jIhzkdAkiDNP.
{"copyright_id":"0xe13df4124026393d2b2e491a7502e41ff7f5549c86425f0dba31aa2343f0aae1","isrc":"BXFLW1600014","name":"Particular Progresso","registered_at":"2026-06-25T21:12:18Z","spotify_id":"4tJUFfWZA7GqBp1haX1Baz","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe13df4124026393d2b2e491a7502e41ff7f5549c86425f0dba31aa2343f0aae1. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4tJUFfWZA7GqBp1haX1Baz.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/4tJUFfWZA7GqBp1haX1Baz.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa45f7322237e9919c8dc191fdba4458ce05f9de4ad18e606a2016006a014b192. 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/6PVC75VkQA72XA19WDZYCJ.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/6PVC75VkQA72XA19WDZYCJ.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6102a653a5ee494854a22bb9a36c9de373257cc4ffa3ac274d54dd7a6ffe22d. 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/5Jv7UtLgUc62MnK9mWz08r.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/5Jv7UtLgUc62MnK9mWz08r.
{"copyright_id":"0x522bcb5a318aa6be90f06336e27c47617abe57c9367a627bde7c12acf3e07c9c","isrc":"BXFLW1600013","name":"Necta Marginal","registered_at":"2026-06-11T10:28:00Z","spotify_id":"6oo4qEZhU4lOqHDOPUwdRQ","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x522bcb5a318aa6be90f06336e27c47617abe57c9367a627bde7c12acf3e07c9c. 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/6oo4qEZhU4lOqHDOPUwdRQ.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/6oo4qEZhU4lOqHDOPUwdRQ.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc04bc1dc861d4d04d3491289c11a34e9c6506d8341aa5c6ac5eede68d260da35. 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/1q4bxRLZYxJbPEqX4wPDlx.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/1q4bxRLZYxJbPEqX4wPDlx.
{"copyright_id":"0x1a09a34b73bba618cf2e7edff0134d346fd717802085a704ca054486fa44ad73","isrc":"BXFLW1600004","name":"Atmosfera Abstrata, Pt. II","registered_at":"2026-06-10T17:42:35Z","spotify_id":"7voCgNVEorAzOBo6Mg80lo","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a09a34b73bba618cf2e7edff0134d346fd717802085a704ca054486fa44ad73. 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/7voCgNVEorAzOBo6Mg80lo.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/7voCgNVEorAzOBo6Mg80lo.