Sara Curruchich (born 25 July 1993) is a Guatemalan singer-songwriter of Kaqchikel descent. She sings in both Spanish and the Kaqchikel language, and is one of the first musicians to use the latter in
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 0x018182591b67d8a147ce686c43c10e2b1038c8f575b0cf2cc0d163c46d4b5ac0. 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/a9deccf6-afd8-4645-99e4-214a787a2096.json and https://artists.proofprofile.net/proofs/artist/a9deccf6-afd8-4645-99e4-214a787a2096.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 0x4bd213db238e9a951a45da68a94cdeb40bc18949a8f86a0486086521c6c95130. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/FR9W11816470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95834b88ba2ca01cce24f19a6e7635f5d5fcc63d27c7df6f41a66265622e7b9e. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/FR9W11816471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefd0d7306244fbfa6e987fed4acc8fb940cf41ba7c290b68fd77f74c40a5b7eb. 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/FR9W11816472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98b12d74a644d3bc8f5d62e1c1f2de1e6348967358d85d3111c8cf9e78433ff3. 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/FR9W11816473.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x873cd88f6525d6b7f50f3f2bbdb2c5be2eb0acbbfca8fb9e16e6dee55a9291c1. Chain 2 (Bitcoin): anchored in block 960187 (2026-07-30T01:34:28Z), 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/FR9W11816474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e2c8338d5ac9bf5e78d29ec15d063b4a940d6b92ef70089c762f5cd668a3203. 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/FR9W11816475.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42e8a0efe9c120cfcb04de86bbbdd746e17cd9dce441ebe4ae3717915be49e44. Chain 2 (Bitcoin): anchored in block 959145 (2026-07-22T15:39:05Z), 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/FR9W11816476.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x773337d8501c27986ef34e389d2ee2db1ed8b06dd9751905d4ee4b820fa91752. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/FR9W11816477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40c5a682a6673811e668a9f8aa2d634c8e93a33f0ee7664f598eaf8944a87fa6. 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/FR9W11816478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ef37fe50021bfa03e115ed294f02a1f862d934995b0fd5e33b9324766b7ab68. 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/FR9W11816479.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d53c60d41dae3aee4b8f5eb06cacaa95c746dbb861acc7b7b92f2a4ffe641ff. Chain 2 (Bitcoin): anchored in block 957039 (2026-07-07T12:58:18Z), 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/FR9W11816480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc99d191faa28cb738d0e3cd1a34cc49b643babe3a2806be6f92aafef3cfb30d6. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/FR9W11816481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab50470eaa3b8bd58245070ba756a91bcb2700c8c92065f13ca19bfdb1d81e47. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/FR9W11816482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f2a76a331f10d0d347a7847095d7c569516ebc7e71e939da7c54a46ddcea3f4. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/ES99D2100104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4709ccc4270486115a529cd7961b520a1dff200f75ad2cc181c63615f204a720. 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/ES99D2100101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0eaf0eb53a7c4f54fe6c125b1e128c5b71093fb8d8cd5ca02e8fb9a3cb3b57a. 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/ES99D2100099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x265b2af7f2ce7b5e4578f8a66b5f02ce05eebcfeeb62db16d0b243b2d37e801b. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/ES99D2100102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb93e90feaf7587369e86eadfec760a5d157fb64f5336eff2722d156c98551a3e. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/ES99D2100103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f2a76a331f10d0d347a7847095d7c569516ebc7e71e939da7c54a46ddcea3f4. 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/ES99D2100104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce3dc5198da2990ef58f5d417231dc5f89d1f9cec07fb0562451982c77429ef4. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/ES99D2100105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeeb4941a41c728e9506be7eb22288511e3aba48d2bf1120c665c2427701f5d6a. 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/ES99D2100106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f97bb9d6c0fbd5f615eaa8abbd143d7921ca74193dccd1878506e72c598b189. 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/ES99D2100107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7ff46ba6099a1b41361d8a02d27d2255563e267c87b2d23878e69dd14573e98. 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/ES99D2100108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa76be8f04940551292dfc270b33bde1fe7efd5c3c5b0f147a1cc9389dcd427b9. 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/ES99D2100109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x208a23a8185e85216a4429a577858d3087f5120e100b0089694fa0487917d28c. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/ES99D2400035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc1647759fb5d5da58d8a8dcbbaa045b93de65d96565cc29d615e4eebbcd067a. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/USLZJ2584393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9251a94a63966547c10aa16876d2247c50f521a809b7a3f5b60bbc55c695554. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/QZZ8B2503834.
Soplo de Fuego (De "Cordillera de Fuego" [Canción Original])
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfa483b29a5501d6b75c21870d62e582561cc8ffa98b24af0df30395f55af592. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), 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/QZZ8B2535633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53be1c1a17ed8c287247df68b243572dd6d818a2decf8d1af549bb967eef8227. 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/US6QR2400065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfda9c36ac1949c0cfe5f814f28b948ea755ee5203ca0da6a5b49ce783d46774d. 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/US7VG2198050.