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 0xff01841695a183f572e54d28b7c6466a68a3f9d4ccdb9bd43abdc613deeff8bb. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/13456aa0-21be-4c58-ba9a-dca83c57dc02.json and https://artists.proofprofile.net/proofs/artist/13456aa0-21be-4c58-ba9a-dca83c57dc02.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 0x53dd972413cf559519f18a6d9ac4b9a339fde3d28adaef3ffd6859773e053445. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/DEH741501588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32820bff850e85922b6f1db8a85e1d71d14c80920e23fcdf81590c7cf21f146f. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/BXG9S2300050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dec4a6f6d8e425b481a2e4af6d8d669d8a2ac9fda163a5e316e56b5797f8429. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/GBLPF6711945.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3632a7822c20774f4a287190758c84fa8ffecf01785973ca14fc8f93b4f532f. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/CA5KR0037622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3da4e163693741def5c4ed641c20c2c642a0a7f2f9f3cd327604861279e2ccdf. 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/BRRGE2102453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5568191b88f84ec1b4cdc67550c9d88c9fd8865412d669eac5cace9ec049dfa4. 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/BXIED2100167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b498c6188bfa7ac683dca6308f8de345440e5538f026109513c1a5920ba7c42. 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/BXHBP1901030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80158df6abe29e0236baa2b77981c5ab9ffe5040693f46b7816da750dd9f3e99. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/BXHBP1901031.
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 0xdf0115f22e768fc22a2e9ae4f00dc1c0d67bfc2cac7bff2cd7038def31ba3da7. 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/BXIED2100098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1370e94ef0df3ae58c26f44c0ee2665e71576c19e89a2aaaf1e4344332288a9. 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/BXG9S2000121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81f1a944285d7096475970eaa292e050e85e4e489ba99463a7b9111d56c2bc65. Chain 2 (Bitcoin): anchored in block 957026 (2026-07-07T11:02:43Z), 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/BXAT62000057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb1e034ada031f3611fb9ca3e5cc81fb9d8ee3a70a858e617bada7785dd90a6b. 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/BXAT61900031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78ba70a6fd456427f926021ebd83a0b6a17989e317d85fad4ec4c76fd32f394e. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/BXAT61800011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6621d7421cde4fb8b916be2f093ea4a78f56eb7065091a1c649657172651ed2e. 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/BXG9S2400829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93ed6011c9954dfb50ff1d60c1a398912a1b2e28ec906503f79db6bed25ec446. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/GBJX32005195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c676ad94b3acc96be1d52a3c251f23771d1886b2ef723656265cf529d051256. 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/GBJX32005196.
Aonde Vai Chegar (Malik Mustache, DJ CIA, May Seven Remix)
Aonde Vai Chegar - Malik Mustache, DJ CIA, May Seven Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x713233f66e74a793178a576418bdb3ec2291ab5261f9f5a3fc4b53ab4bb1f3aa. 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/BRKIJ1900002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8646c04a4c81e4390905c75672afbdd310cf196bd5de078cafa884efd7b616c. 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/US7VG1751431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabf0897b7df81cc0fbc2a5eff3af84f622af2b98bfaf7d2cb96bee2deeb8c81c. 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/GBQ2F1561228.
Sensual Girl - Malik Mustache & Cool Keedz Remix
Sensual Girl (Malik Mustache & Cool Keedz Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f3e9b38c76e4d54ffa920e8c05ff9201d8478187b1d6a37ab65101940fcb4e7. 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/QZ5AB1848929.
Terra Sem Lei - Malik Mustache & Evoxx Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11eb22dd307ce332ebe054e919d6397ece339a3ec17377d1004806a2d35b79db. 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/BXTHF1700005.
Rainha da Pista - Malik Mustache & Smile Oficial Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9437b4bdcc7f8adfacfece3c36cb99c4fc2ff1ab0286c442d3912939b1322053. 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/QZ5FN1790684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6a390dbaaef59e8aba44173fc7bb552b4ad7c2a7007972244377ef2597cec2a. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/DEH741605060.