thumb|right|French bean pods on a plant A bean is the seed of plants in many genera of the legume family (Fabaceae) used as a vegetable for human consumption or animal feed. The seeds are sold fresh
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 0x1320c5d8f440c30b23973b8e96d2ea60f69f8ecaecfc717067b439b078ac096f. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9061a415-258c-4b88-aebc-9ae01658360d.json and https://artists.proofprofile.net/proofs/artist/9061a415-258c-4b88-aebc-9ae01658360d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Anh Chỉ Biết Câm Nín Nghe Tiếng Em Khóc (Chips Lofi)
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 0x70120cfad0fa4e8711f9e5557b11655965219488794286eeeb84567eb14a489a. 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/VNA1M2202392.
Anh Là Cố Chấp Duy Nhất Của Đời Em (Bean Cover) [Rumba - Instrumental]
Cảm Ơn Vì Tất Cả (Bean Cover) [Rumba - Instrumental]
Buồn Làm Chi Em Ơi (Bean Cover) [Rumba - Instrumental]
Buồn Của Anh (Bean Cover) [Rumba - Instrumental]
Ai Là Người Thương Em (Bean Cover) [Rumba - Instrumental]
Đau Ở Đây Này (Bean Cover) [Rumba - Instrumental]
Em Là Con Thuyền Cô Đơn (Bean Cover) [Rumba - Instrumental]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20ea6cf9072d971f9c3010cb340e00b7ab5e446d48235d17e690a6b2481064ee. 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/VNA1M2291270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x192d884e1842528b85e6f284ab9d9facba0c7aa86f876e42aba3c1deb5cd6e32. 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/VNA1M2284833.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea37ac508c8aff1e6fa78f2f00737dbf7a51f7450d2dbad69cf05b73c3ae2182. 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/VNA1M2237741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f635b49e339834096e0c271c55bd41033b1ef1a101d1339dff688418c6f5676. 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/VNA1M2219458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99e5cef5e17d681bc6dd4d4747d6e150452a5e979201938510f59b2635eb9c8b. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/VNA1M2219459.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x861bb9d92641364a0442a0ebcddf768e699b72ede1b1990e9dd213449208ffa9. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/VNA1M2291589.
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 0xeec5e623bd215f12b3b119ae8586cc031e688760c93c24721d70468e4f9fd86e. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/VNA1M2286706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad5be20520d5aec656ea898f3a46a5cd108eaa4dd7812470feebb513ce4838e0. Chain 2 (Bitcoin): anchored in block 960164 (2026-07-29T23:23:05Z), 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/VNA1M2284320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c7bdeb7fa4616a9acb1caa5ba14387c0dfad8d1bcbdd3c5309d1e767c3acdb1. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), 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/VNA1M2280843.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ec8904a1d3152591c62772d2edac77c5bc325340c07047d45f15b1f06c9c90b. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/VNA1M2279749.