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 0xe61d9f7b996945185063b8ff2a42983202d0b6385374957ff94061bc8a4ff65f. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6a2fc8a4-f036-45f8-8c90-146eea9ae59b.json and https://artists.proofprofile.net/proofs/artist/6a2fc8a4-f036-45f8-8c90-146eea9ae59b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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BONDE DO GRA GRA - Então desliza, desliza...
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 0x81a11971d2ea6a147cccbd5fecea91231cefd2381142f74cfa9a4c54c38affe4. Chain 2 (Bitcoin): anchored in block 958111 (2026-07-15T06:58:20Z), 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/QZZ7P2586010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeec5e64999089339fd71e2644ca0731d39367b5f1f3d867ff35c839147971fb5. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZZ7P2586011.
BONDE DO GRA GRA (Formato da Bunda Dela)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64495c4e81ce9f3bda42630c1b5a38e434a4f04ec11c863b51d04f3f5a98acc0. Chain 2 (Bitcoin): anchored in block 958596 (2026-07-18T18:42:38Z), 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/QZZ7P2586012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x985cc98628d0e0040dd2b518a0525d133afeeb2e4b44cf33de13881d62c32a21. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZZ7P2586013.
BONDE DO GRA GRA - Tua Ex é Uma Delicia...
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47e27920e3d654724b5472da964cad12167e5f3ac778cacfb4db4428edd8f379. Chain 2 (Bitcoin): anchored in block 958870 (2026-07-20T13:59:34Z), 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/QZZ7P2586014.