1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0xbac7f5b71858bfca990fe0f910a8a14d7111480980fb31cef122f4c77d3becef. 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/2f89ab32-08e5-41a7-8965-f222d184b765.json and https://artists.proofprofile.net/proofs/artist/2f89ab32-08e5-41a7-8965-f222d184b765.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Anh Không Yêu Cô Gái Đó (Remix)/Có Mới Nới Cũ (Remix)
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 → block OTSBitcoinBlock must exist at that height 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 0x5a00bf4a0c1365512e6c4f9abf7833e13b4e52260876ccc3a5919bffcc4f82fd. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/QM4TX2468493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x726d9921f3b2283d697c7ab0284e2adf1c28e6c386714f214fcabe15b7c0ccf2. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-16T21:55:37Z), 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/QZN882118542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3051ba6ac01d81bcaa753f5057df182d3fc0ce409188c689d1382394c2a0de47. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/QM4TX2566846.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x519130f5d3094d7f10919313163e33c137c741516113b36dd7ce9ecb86bba93a. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T20:22:36Z), 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/VNA0F2411427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfddbc3afa67a762aeeb54dd75c71091eea59781fb0f668dc92ba755f9d7693eb. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/QM6MZ2546126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd05e6015ef406277a8e8c3acedf77b8f0fb00a9183b7a053102090e861cc5cd7. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/QZYHM2506623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67699d0becbbde59981f42078498c649c18f4d4536623238c319869755e13960. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZNJX2584198.
Medley: Không Lấy Được Vợ / Biết Đau Nhưng Vẫn Yêu (Đại Mèo Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd877cd11f9ed2e6a81a8d355f58007286246db9ece9aea2992921a53ee2efdd8. 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/QZNJZ2501302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb97e95c1b5d86ceadd451fa65d04849e679438d0a33f1bce9055b3ef15cbc74. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T23:45:29Z), 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/QZTPX2549236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50d85b91b592a444f5ce0bac07bf4e8850a1fd14f0323b7f1ec0ea63b33568bc. 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/VNA0R2500627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0154d08c0bd8aa39f1b237fe47c44612fbf235f19784a754b8d6b6a879fcc1f. 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/VNA0R2500714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde33481bceda88f5b305733ca83aa632d8fb3b393dc5bad9f57aba6a3bd935b6. 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/VNA0R2500715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9762aaf88bc274e3e053b03877da3620fc15d5069b344998c5652fe371c02cba. 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/VNA0R2501592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75ff015acfdec5f3031fac0af8cf7635d86ef17eaaad2a59a22909ba71bd394b. 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/VNA0R2501593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbed494f2386df9139748092bd642b3a46e076907450c6b0dcdbe75dbc043ac6d. 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/VNA0R2501594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff06021c7c13bf64f6de2879d99dcfca88b4c6eb2949358f4afcafeb4e7bc295. 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/VNA0R2501605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bfeb44f64aaa14b1263c9ecd2367cda0a5fdc046c18eb1542aa68ce39237979. 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/VNA0R2500895.