Elisa Espinoza, also known as Lizz, is a Chilean drum and bass DJ and MC, as well as a singer, songwriter and producer. Her music is characterized by mixing sounds from the Latin underground with infl
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 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 0x5fb0c68c67ae8aa8fe8bdcf8981e66612410ae3c35f53b83c450f34550bda819. Chain 2 (Bitcoin): anchored in block 953991 (2026-06-16T18:47:23Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2e0aa20a-933e-4fc1-8e06-10b8d24fa1b2.json and https://artists.proofprofile.net/proofs/artist/2e0aa20a-933e-4fc1-8e06-10b8d24fa1b2.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 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 0xea6ea315b3e4a64d140596dae3a41a31860e16ed8f1fd88dc805d45c0d3b99e9. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/DEH742309797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fb7bbcc7f465992d58422089f22cbd5472f9e9454f7f610569b7888ac9244be. 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/QZKDK2123758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf55e03fee0eddfc88937322957a373b3b6409700a5a3754138fc865542ebbf70. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/QZKDK2132273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15dc324d70508cb7250e1af110eed2242ba80f72c897eb5b16bc5e16846d7232. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/QZKDK2135640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e3073af21a20daffd5249d53228a225139ef5250eec8a19e20b58a51c5a277c. 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/GBKQU1971934.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6baaa4ca12bffabfe02f5837e0fa56ffabff640b6b712f6468159602e1779f5b. 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/GBKQU1971935.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10232e121d040d7f90f340e11efc62048a8704d5df3349c7696d26fbc4acc4af. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/GBLV61805793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa10a6c87ba98f3b90d6dafe986156f8d1b3e2202d3b14afb9d246fd666d6b54e. 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/GBLV61805789.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbfe123244c6dfba19866d327fe9b37550e798297268114798e62461019ccbb5. 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/GBLV61805790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x887388506fcdcd2f754402ca3718dadd2c90cfd39dc0a348194a06e46a942e46. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/GBLV61805606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d69bf807d652fdd348b552e6567b765733c1de2a671dfff74fd05f22c6664f1. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/GBLV61805607.