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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x213a2eac5e90a859bc8a40ab63d3bc5ef4e468518b5103b862437c0224fdee0a. Chain 2 (Bitcoin): anchored in block 953817 (2026-06-15T18:10:31Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fe3d203d-d07d-46a1-8e7b-d27d49069be6.json and https://artists.proofprofile.net/proofs/artist/fe3d203d-d07d-46a1-8e7b-d27d49069be6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa74442dab271b879d2d69a22eecc8b0ae856432edbb553547ceedaa7bd48f782. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZWFL2439261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3357086e7b2bb1c06c90a3dbaeb56308f027d3cbdd20eec5803256a9120e5c8c. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T16:14:34Z), 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/QZWFR2433145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb82f4275dd722f31547c8bd64c7587b594b34d4ebb51becba4244e99f9a088ba. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZWFV2471130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd071d545c51dcfa14a74cfb61dd7984ac741903b8d93f812bdffab3ae611e140. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZZ7M2492676.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc35b9e62825ef48572134304c5e66487aeaaf40917620147c2852c8c1e8ffd5. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/QZZ7N2430303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdda27e8c56c87c7a4723d41e3b46a950745b6124d2c7bb2e50a32a15b5e83516. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T11:41:42Z), 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/QZZ7V2460234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x026661b336f3049f10040656ff8636cb0547e09f50f39cf052f2d356daffb477. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QT3EZ2401351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5647c903f737f30a9de530900a37c7ef39a3e853a779f55cd28695a704f50110. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QT3EZ2400426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3aebbf4f514380488f407bd17f031a5e1357ca19ab372c8f670399f1c57b60a. Chain 2 (Bitcoin): anchored in block 958116 (2026-07-15T07:27:32Z), 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/QZFYX2555258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38c73fbdcac817b9c2221e1ca6c28a74a9039ffa4e28231598c94093b78096bb. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T15:48:23Z), 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/QZFYX2555259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe35c2b92bf899513519bbaf1793d068910290bc6e54a796ac66fe18ae538c227. 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/QZFYX2555260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9aa2f774ddaafbed41e63edfd713c437a37a794a69b9e667a7abb8e661b3c92. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/QZFYX2555261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3ec7135e749e290b04acce6fa1fd1aea00a70545f7e209012c3c7c34c87db92. Chain 2 (Bitcoin): anchored in block 958401 (2026-07-17T11:10:25Z), 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/QZFZ42520268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35603f0e5878be77d2a5be02df80738770b0b3cac45b0ef29e9104218efc2676. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZHN82578983.
Australia's Most Wanted (setting the record straight)
BORN DI-RILLA (Lets Drill Extended Version)