1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 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 0xabcfc0fca999a9bbb1d6c47834e56521f2d0f8e0b5bb864007dcb3915d34131e. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/656da7b6-4aa8-4ea7-b797-a08bf5db758d.json and https://artists.proofprofile.net/proofs/artist/656da7b6-4aa8-4ea7-b797-a08bf5db758d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
TOU PAGANDO NO PIX É O COMPROVANTE É NO TAPÃO
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1 - O RECOMEÇO PEGA NA PORRA DO MEU CAJADO
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A NOVINHA ERA VIRGEM VS TA COM FOME TÁ COM SEDE
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef0784c93c185939b26c80991a798745f987234c6f2cac12eb028312de3518f7. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AEA3A2443028.
ME FEZ LEMBRAR O NOSSO ENSINO FUNDAMENTAL (Acoustic)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd417aa9aa4d753f7b011cbf7d642e4b81ec28821c1ad3a2fe124f7820dd503ea. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SGW502241884.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5de682a5cfdb37d3d5f5721b18230fcb452f3b132a392d722719f4aa25ce0da1. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GXBAV2573684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9bb2408402d206fab3c04f7efbd552927f819993e45aee13a60f48ff6cfb13e. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GXD7G2568074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x070e54105f746894f9b9dc8089b8ac952f822847356c0b61619ce51c9262f30d. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AEA3A2510727.