Vilma Eliana Rojas Alfaro (born 1 February 1932) is a Chilean politician affiliated with the Communist Party of Chile. She served as Deputy for the 2nd Departmental Group (Antofagasta, Tocopilla, El
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 0x974328c52e4b38c0265c94bdc1722fec46327194aec21147e4b47734a85dd309. 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/e859f3a9-a34c-4eea-a622-875c087f111c.json and https://artists.proofprofile.net/proofs/artist/e859f3a9-a34c-4eea-a622-875c087f111c.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 0xb7ed5c8951bcb0bc647bf4b3f7d848a16495a2e026071c4d942ecfb1c4caedcc. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZMZ92134419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd79b285ff4cccda317b659659b2d4221a7f1b5c155fe567d72345704531ece6b. 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/QZMZ92134420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed00b4ae84bace952f458cf17cfa7e1a0812980ff2f8b0fd8cad5d8968554a58. Chain 2 (Bitcoin): anchored in block 959094 (2026-07-22T03:33:16Z), 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/QZMZ92134422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x220db637bc84c9189c55ca9b3e91cef3482c9d09f66427bb963c793951ff9f7c. Chain 2 (Bitcoin): anchored in block 958185 (2026-07-15T18:19:04Z), 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/QZMZ92134425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x894294ba01a636fcd779eeeb907a52811420039edb97fb1742035d9ba24720e4. Chain 2 (Bitcoin): anchored in block 958582 (2026-07-18T16:47:25Z), 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/QZMZ92160609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d0a2fb118934de6cc803e92ae1c72b28fc36e1a2235bc15c61464635f859a19. Chain 2 (Bitcoin): anchored in block 958860 (2026-07-20T09:58:28Z), 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/QZMZ92160612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x312ebf17f1c3ebda744fe131554070e13d7e4f0d62f4155c9d38919af45aa84c. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/QZMZ92160613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5f37a4a5879bede6726e604cdd5c6f44745ffc19fa7cb76dcbbd1587f5ea622. Chain 2 (Bitcoin): anchored in block 958371 (2026-07-17T05:45:43Z), 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/QZMZ92160615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37cdce72f3fcad6f3bed528f5e9a038a24aeabf951993066c8395673205004ed. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZMZ92160616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e2e8d7c4b8c34a3ae5a45f0256b72687ebf1650e23cc7853bcb0e1fba330579. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/QZMZ92160618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa69ab672fce044a6bd1e63eb8650a0510b9451eb4c6b912a398e125fa787b706. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), 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/QZMZ92160941.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1141eaabbebb95274d16ac8c587bc9417bfff59a998185b436e385d8a181e493. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/QZMZ92160943.
Bajo Tu Sombra , Dame Fortaleza , un Poquito de Amor
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8704e62eb257582b28c5fac42ebef586d33331aab2cf4e2a599f8becb2b35111. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZMZ92160944.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4f82f5c106677c7b9697fd35aa7b7442594e72d2f8adb22d5171dd49c1763b7. Chain 2 (Bitcoin): anchored in block 959109 (2026-07-22T07:21:40Z), 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/QZMZ92160946.
Un Vaso de Valor / Una Paloma Blanca / Yugo Desigual
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b2cdf01160f1e5b6e22302cdb2304f928119bb041886bd8e288c80086fa36b8. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T21:20:45Z), 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/QZMZ92160705.
Con Brazos Abiertos / Perdón Te Pido / Feliz Matrimonio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71ec6d98b1d47b76366de8865edb7f2d188536a43b58773c956c6164b502b271. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZMZ92160706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc41f89e6cb4b1fbd66c070b657f53b165bcde5a20e7f19f3a825733c8a6ce4b. Chain 2 (Bitcoin): anchored in block 958627 (2026-07-18T23:33:54Z), 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/QZMZ92160707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd058b8a3948e19d6cc9ef4667baec6b69d35d839223dbfb538eb9156c4674076. Chain 2 (Bitcoin): anchored in block 957774 (2026-07-12T23:51:20Z), 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/QZMZ92160865.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b756514b3c25693250cc903f8c87b473b349d973c51b6c3966792a3b96cdf3f. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T17:59:52Z), 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/QZMZ92160867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacf61283489536e430cfd14f8bc92b01bdb36afa0c3430a37f1a36613ce43663. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZMZ92160869.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee31507dbfa2952f71318bfe750a4c45d36071e47c668cf60a6131b5134de240. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), 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/QZMZ92160873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a04052f2614ea8a8e58b40cc24c626ea983464699ef16aa6cf05ca902a828df. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZMZ92160874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c6306daffdef868c9d2511f17c9f65b359b693990cab869b776086db1569bc7. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/QZMZ92161368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1aa745bb572a98ac9532dc199e9ecfa1f6bc20324b1e86e79a4beabaf496c5be. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/QZMZ92161375.