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 0xaaf85570a8aee5ab275341c36e7b3079b90df6b468d850bfd7a96fca4c9d1904. 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/d75875d0-bb94-4ff0-a787-e5baa225c6a3.json and https://artists.proofprofile.net/proofs/artist/d75875d0-bb94-4ff0-a787-e5baa225c6a3.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x154302d890efdd4861ecf5a1b03e2957512d27b7c308bc467a67b2451bf35679. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GBKQU2374884.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2da2bd5ad0aee1fafc207b2d170e0a5b3173c1b14034f76d792a1cbb9e196625. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/DEKC42300022.
Downloading System - Blazy & Sighter Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5323bdd4454c03ffe6cdfbb9e086751f83b299251ccddb894eb62a97643d4c5c. 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/GBKQU1910021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c6e4c0b6f27914f9c2a231b5903aa6cfd4cbbb17aa03bae462c6e27b9345891. 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/QZK6L2084077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x922484b848a5570939386aa6d7048f264de2213a39378c5448c412367763a4da. 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/DEKC42200025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58c041f05a6e9de5341d837e579b5fe030ba83a02e847567a3659510254452d9. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/GBKQU1856690.
Lotus (PAROOKAVILLE Anthem 2024) [Neelix & Sighter Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ad5804869bdd4b14ee8d424582bc38504877da71180a951fe343de18a103544. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/DEA622402254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x914eb4decbaa1265214b7a2d2ddf51d3dab352b1e43331f5360aaa701af39c5d. 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/BKRAP2400010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e88830eb596ec6ed65163c9d9ae153d35f76fa07f2cd99ae722c68abaf47f72. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/BKRAP2400011.
Sweet Disposition (Blazy & Sighter Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9820b7bec1c22db36ab3de5698278bdfd18e472e44e976ff5d307826d2691955. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/BKRAP2400024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x319a6983a56b9d02589cda3a44661ea167afcd20273c25f393bdedc10be81b53. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GBKQU2376473.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c88fde07a0a90d723f9149efa0e4e9261ffbddde4dbb75eb45a41815bde43f0. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GBKQU2316013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58a1e17a1c2601ec7e7683db247dba05e7f9745661384573a4a871a670e9e564. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/BKRAP2300003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa56de28826a6185f9d52c31d685e89361508864b44a8a3db7df899e203af039. 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/DEKC42100004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x914eb4decbaa1265214b7a2d2ddf51d3dab352b1e43331f5360aaa701af39c5d. 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/BKRAP2400010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e88830eb596ec6ed65163c9d9ae153d35f76fa07f2cd99ae722c68abaf47f72. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/BKRAP2400011.