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 0xaf92fc32731a12c4b6dc97540bea21b46ea96216268997ec2d2c75921d46153b. 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/358e0814-9862-4508-ab45-2eb56b673ac9.json and https://artists.proofprofile.net/proofs/artist/358e0814-9862-4508-ab45-2eb56b673ac9.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 0xd81369e1d1ddfd6fb189044816cf6be365287f0b3ef28275e947f941fce49a16. 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/5NJHee8EbpbMv6Mb8ZilZI.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/5NJHee8EbpbMv6Mb8ZilZI.
Atura o Baile (The World Is Yours To Take) [Funk Remix / Budweiser Anthem Of The FIFA World Cup 2022]
Atura o Baile (The World Is Yours To Take) - Funk Remix / Budweiser Anthem Of The FIFA World Cup 2022
{"copyright_id":"0x0249d647f47134249236c41a74e3abd07d26db6899b7e1f9f1887bfe30a6ceb5","isrc":"GBUM72207512","name":"Atura o Baile (The World Is Yours To Take) - Funk Remix / Budweiser Anthem Of The FIFA World Cup 2022","registered_at":"2026-06-07T19:59:38Z","spotify_id":"1QjVcycdvef8b4azmcEdfe","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0249d647f47134249236c41a74e3abd07d26db6899b7e1f9f1887bfe30a6ceb5. 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/1QjVcycdvef8b4azmcEdfe.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/1QjVcycdvef8b4azmcEdfe.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e5a6e09074ae36c3eeaa7550dba296282d137f5f59c8e3ba687a060a48c3aad. 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/5vC8UAOHeG95ehRzZChniB.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/5vC8UAOHeG95ehRzZChniB.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88d31958ea836f5374f3abc2aff5a09924fe42317be640d550b08b6fbef12b82. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0E1yY27P1Jk2871iG7KOOP.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/0E1yY27P1Jk2871iG7KOOP.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f492bb86ccbf5a8edf41260bb203e2c5c30b700365a36f2055510a49b306a69. 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/65YQv0Ulsp2ZnL0Uv4l6Nu.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/65YQv0Ulsp2ZnL0Uv4l6Nu.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c2854f2d4d400f2a35c9c917b3f00aa23286543c50b2e3f06dc21c82fa177f8. 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/6XyuR2Z04snFRdPljf5syM.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/6XyuR2Z04snFRdPljf5syM.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73b72c1b950cac8fa3c2593c242d3cc5b71a5e9a49b170e7d60251f028427f7a. 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/4v6TGGmgoJC3P2gqToqJLr.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/4v6TGGmgoJC3P2gqToqJLr.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9f10a5e874bc90c923dfb3e7cbb8349d465440cdd0ed3682ee336cd6109532b. 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/06VHFg61ePkcCQfYFEuz5c.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/06VHFg61ePkcCQfYFEuz5c.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f542dd63bbd19c752191ee6847fe5701aa697d5b904a649443ba652de807655. 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/17ZFZ3rXAkkgQfTrgQJh40.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/17ZFZ3rXAkkgQfTrgQJh40.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ded9591ce4616994742d73fa215272e7359c3acb95255e875f47255ab35f245. 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/3WhX75qIWMUmQshCztywwx.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/3WhX75qIWMUmQshCztywwx.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7852ba5cadcb0e85142c107d4616c491df20e0c6f8892dffd082b41e83969ae3. 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/4P4Ay0CpAjhjz7SIFI41ti.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/4P4Ay0CpAjhjz7SIFI41ti.
{"copyright_id":"0xf2f4084204c82c15477ab0f33a5535dcc072e88a5f51f6d8c71ca4c8d7c7b773","isrc":"BR5TG2400165","name":"wandinha (faixa bônus)","registered_at":"2026-06-06T09:19:29Z","spotify_id":"7Imy1rEoQKye5e9NIWdJdu","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2f4084204c82c15477ab0f33a5535dcc072e88a5f51f6d8c71ca4c8d7c7b773. 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/7Imy1rEoQKye5e9NIWdJdu.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/7Imy1rEoQKye5e9NIWdJdu.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c1e72f1bb15311cbd06a14101f2a794899ffa7f5a5e5a44d8581c3df405334c. 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/7F7qLxh44E3oaNc7shIvEN.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/7F7qLxh44E3oaNc7shIvEN.
{"copyright_id":"0x71fa0eab8a2ed0edbf194fb95e4003473dfb6c76e560fd9dd253aa5ea9c53def","isrc":"BXTHX1900041","name":"Mente Livre","registered_at":"2026-06-18T13:37:53Z","spotify_id":"6rFilTXAcXxdvJJ8urW6cm","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71fa0eab8a2ed0edbf194fb95e4003473dfb6c76e560fd9dd253aa5ea9c53def. 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/6rFilTXAcXxdvJJ8urW6cm.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/6rFilTXAcXxdvJJ8urW6cm.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae8c9a6cd720cbfaae75f19e415957c46e549979491b8b1de0d9932789010527. 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/2izZu6M9ABiSRtE6VM61Da.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/2izZu6M9ABiSRtE6VM61Da.