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 0xa887b554a140049e43bdceed4586ff3195d5bd23855204398b33f20387e5da75. Chain 2 (Bitcoin): anchored in block 953827 (2026-06-15T19:59:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d3a62cfd-0424-4e6d-9d31-bc60fbea9043.json and https://artists.proofprofile.net/proofs/artist/d3a62cfd-0424-4e6d-9d31-bc60fbea9043.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
GESTÃO DOS MALVADÃO x OS AMIGOS DE GLOCK
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 0x236e2bed308bb8e906436568b89d8c46a1eaaf71ea95f273044ec832a137297d. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/BX4IU2307231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89fe7913868c81424e8d9475b6d5f1e29d2a2480928a38bf7d0b3fe1e793c89e. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/BX4IU2302794.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbed3668de79050f8d69384c8f1644ce77e88bab35ff03b374364f52e1eb0a637. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/BX4IU2300453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x132c77fb7d8e5fc0791fb797867b3dc5fd6350297231cd06ab86cc956504eebf. 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/BX4IU2208277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c65bb485af7dac210dfdd8ccd85eff1c06523f4360ad99d26cfe6ef7c7efde3. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/NLRD52255884.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7db3c3271fe93d8b46b531bf9b0c9e3fee2a00b8ae3ca820423664a0b737c873. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/NLRD52219970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x055dc1a46e10880b1db29a3e0b78792b0bd4346f9757f87a324fc51027ab10dd. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/NLRD52219589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaec0bb9bbbb2442977cd3dd36d56e415c352474942dd3d3d94222cecd7a4eb2. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/NLRD52220261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4725f53e23c3b7c539449c5b4f83b8e09231c683b2920fa0e6e54729c04b076c. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/NLRD52250730.