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 0x2253059ec7bc377e7485e2733f8532871896896e8d1a8359b5a765e3c5461a71. Chain 2 (Bitcoin): anchored in block 954533 (2026-06-20T08:57:02Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a71658b0-1ab1-4ad3-acde-fddfdf44a995.json and https://artists.proofprofile.net/proofs/artist/a71658b0-1ab1-4ad3-acde-fddfdf44a995.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 0x9a8c34853b3ea95f0e3064ef021dab00d1f3fc9dba15ffdf1efa208a5f5399f6. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T20:51:32Z), 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/QZHZ52115569.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe5f3dbcee618ff9b23050463c17f09110bde69c84a622c809cb7be902cc2236. Chain 2 (Bitcoin): anchored in block 958504 (2026-07-18T05:41:32Z), 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/QZNJY2112645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cf6e54409fb2fc7a4ed82fc68c594d01200aa74fc6ddda0f4a11b1297cfb58e. 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/QZGLM2221427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd80623031d5d7361caef7d527aae30a2d599893d2bf99a7009f50c0672f16007. 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/QZGLM2221429.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x258b3e8974a0c2d74fd7fb73f9c694d68f2b3c44e889701eb8d407258b505edc. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T10:00:05Z), 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/QZGLM2221432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39cfa7f722c88d2dad27ff9fcc434f275ffad96af5fca0390a3cfe2d09194576. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T17:53:56Z), 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/QZGLM2221433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6d80934348ac8c3dc668b0f40757612d3caf01c7ec45ebc5fd54d30bcf7fe01. 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/QZGLM2221434.
Un Ratito Mas Remix (The Egox & MR EDUARD Remix)
Un Ratito Mas Remix - The Egox & MR EDUARD Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8779c4f671ea84d3809c2a882365a6bab073bf338ffc83e6206048c583088e13. Chain 2 (Bitcoin): anchored in block 958861 (2026-07-20T10:02:52Z), 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/QZHZ52297900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfeb5a263e4ac26dd52bb457ad3afda175d2c768d650cdfb5e4cd244cdea57f23. 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/QZNJX2293419.
Radical (The Egox, jeymer & abianel pire Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18cb78e5cc07dcc1748d54baf98651af61acd896f2006e546b517a7923c3e287. Chain 2 (Bitcoin): anchored in block 958908 (2026-07-20T18:33:37Z), 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/QZNJX2394419.