Ibeyi is a French musical duo consisting of twin sisters Lisa-Kaindé Diaz and Naomi Diaz. The duo sings in English, French, Spanish and Yoruba, In Yoruba, Ibeyi (Ìbejì) means "twins". Their music has
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 0x38328282fd69eab3ca4be0a12095c3ae5c99af9c1cf22dae4fc963b14435ede9. 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/b53c45f7-1167-4bb0-a042-dd28718e5262.json and https://artists.proofprofile.net/proofs/artist/b53c45f7-1167-4bb0-a042-dd28718e5262.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 0x3b8ec9ae6e47832a095df52dc2eddb9de7ff4ab45ccd80a162de495846680efa. 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/GBBKS2100225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf827c4e48af563b66d5566b47bc25f101ee6d7b5d370c92889035634210e3401. 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/GBBKS2100226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x974fa15fab6cac15c3c6c2271c5785be13d7b57616b12562b34e31bc57012bc2. 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/GBBKS2100273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x080e0db3cbdeeb1c5a7a2b99b74554d9b11667ae29d78e839a27a83962fe66f8. 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/GBBKS2100274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b8ec9ae6e47832a095df52dc2eddb9de7ff4ab45ccd80a162de495846680efa. 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/GBBKS2100225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50e7bff64e23b09184fb908bebaa9cb49027965574df633ca7a11a5278753b1c. 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/GBBKS2100275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48468d5ac977b994d32d39900acd19494f0e9982e4ff427f58cc5dd16a98353c. 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/GBBKS2100276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4caa14cff80ee0ee7e0ff71e47407d72caac9efbe7e1e366c4d91158c4fcd8d5. 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/GBBKS2100277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92747d212018df4c2462ad120369bf1ce719d5aeece9a583fab12a69abd7c16d. 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/GBBKS2100278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46bf8590b8ec9bf23639f42720d2939d2d850c2bed4d01048291abb5e37272a3. 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/GBBKS2100279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb5b0f97e48f0db788660f0225edc17b88738efb4606c06984cce0ba6770f027. 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/GBBKS2100280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e3af4fdc9f0bc649de237ec7523adc5036938287b83fa7877ae90344f200801. 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/GBBKS2100281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb5b0f97e48f0db788660f0225edc17b88738efb4606c06984cce0ba6770f027. Chain 2 (Bitcoin): anchored in block 957032 (2026-07-07T11:43:09Z), 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/GBBKS2100280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46bf8590b8ec9bf23639f42720d2939d2d850c2bed4d01048291abb5e37272a3. 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/GBBKS2100279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50e7bff64e23b09184fb908bebaa9cb49027965574df633ca7a11a5278753b1c. 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/GBBKS2100275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b8ec9ae6e47832a095df52dc2eddb9de7ff4ab45ccd80a162de495846680efa. 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/GBBKS2100225.
Recurring Dream: Music from the film How To Stop A Recurring Dream
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1df2961fe2082874e3d2d1057daec18040c066310f7251c37c3a1316feb4be1e. 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/FR79W2400300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4c32e5a20b207b32b2ec896969907a17a4da92a6731a3794307e6977965a2b8. 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/FRUM71600180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6f400a6b055fb11e671349f57f4873fb808519dc899d2eb387706638784bd87. 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/BRX6F1900040.