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 0x242c31856a92d7bdaae34ba72a600a6457af546b5ed72c1039b03b6b2469631b. 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/2c558bff-79a4-4114-9d65-dede12b4580c.json and https://artists.proofprofile.net/proofs/artist/2c558bff-79a4-4114-9d65-dede12b4580c.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 0xd437697ea16f353c04d50b172563f61494628124db560fcd7db20ab60637d02e. 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/1gu6CuMfLsinm2ZVOv5gLq.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/1gu6CuMfLsinm2ZVOv5gLq.
{"copyright_id":"0x0671e5fd33bf8e746284a4ac2cb428ac33917201d2b412556b7bf4cde27c12bc","isrc":"QZGLM2449759","name":"Black Lança - Slowed Reverb","registered_at":"2026-06-10T04:08:52Z","spotify_id":"4ZYgzJGCH2vZBPbR7rlJce","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0671e5fd33bf8e746284a4ac2cb428ac33917201d2b412556b7bf4cde27c12bc. 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/4ZYgzJGCH2vZBPbR7rlJce.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/4ZYgzJGCH2vZBPbR7rlJce.
Balinha para Essa Garota - Slowed & Reverb
{"copyright_id":"0xe928c7fbf73861b70071cbb2edf58ef65edc5cee236c3c782c287be684b3e39a","isrc":"QZGLM2450452","name":"Balinha para Essa Garota - Slowed & Reverb","registered_at":"2026-06-07T20:05:56Z","spotify_id":"2zHKZRGUQySPA5IOXVQthL","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe928c7fbf73861b70071cbb2edf58ef65edc5cee236c3c782c287be684b3e39a. 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/2zHKZRGUQySPA5IOXVQthL.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/2zHKZRGUQySPA5IOXVQthL.
Montagem Give On To Me - Michael Jackson
{"copyright_id":"0x3e3671092b1ea53f14b53a2d19c623fa102edac18b8e3c3e946c6e30f751fc34","isrc":"BCIH82202146","name":"Hoje Eu Vou pro Helipa Sim","registered_at":"2026-06-07T13:39:24Z","spotify_id":"1pQJmFxC1JavffmGc33pxt","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e3671092b1ea53f14b53a2d19c623fa102edac18b8e3c3e946c6e30f751fc34. 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/1pQJmFxC1JavffmGc33pxt.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/1pQJmFxC1JavffmGc33pxt.
{"copyright_id":"0x83dd8e9a11b55cc2f0e647abcbd5780fd35f8dc3af22d11255c84f59dd482b43","isrc":"BCIH82203050","name":"Montagem - Empina na Onda","registered_at":"2026-06-09T17:56:26Z","spotify_id":"3NdIK2VoabOrSg68zPSCRI","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83dd8e9a11b55cc2f0e647abcbd5780fd35f8dc3af22d11255c84f59dd482b43. 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/3NdIK2VoabOrSg68zPSCRI.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/3NdIK2VoabOrSg68zPSCRI.