Sara Elena Ramírez Vargas (; born August 31, 1975) is an American actor, singer and activist. Born in Mazatlán, Sinaloa, Ramírez moved from Mexico to the United States at eight years old, eventually g
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 0x5e55b10998ac6d899c147bc0aee1aeaca2b48097c80cdf71e11e1471196085ed. 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/dc94c261-533d-4918-8ef2-6fe847a888b5.json and https://artists.proofprofile.net/proofs/artist/dc94c261-533d-4918-8ef2-6fe847a888b5.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 0x5b5b3e0e971fe5cb257cbe240735c04d8c505a5e35743569b744221b41aa476e. Chain 2 (Bitcoin): anchored in block 958918 (2026-07-20T17:58:04Z), 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/USUG10914383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1194ee761e2b7d31a2cd51f742b69d58e94a6c1b9a943879eeed52cd7eab6966. Chain 2 (Bitcoin): anchored in block 958051 (2026-07-14T19:14:42Z), 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/TCACH1582090.
The Song That Goes Like This - Original Broadway Cast Recording: "Spamalot"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8e17ac798f872eff3e4e3131e1e919c5d9818fccd664d2d662e23495c50722b. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USUMC0500053.
Diva's Lament (What Ever Happened To My Part?) - Original Broadway Cast Recording: "Spamalot"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbccce03f2928186e904473953373d283e194fb21ac6582413a904e8cf79ddd82. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USUMC0500056.
Find Your Grail - Original Broadway Cast Recording: "Spamalot"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09fdfc6a6ef5f3f1fca4d49d35784a41d9bbaaa6ea1a95c12834c87f98f73ff2. 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/USUMC0500043.
Knights of the Round Table/The Song That Goes Like This (Reprise) - Original Broadway Cast Recording: "Spamalot"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c9655b6e0ce9c79610b7dd399fbd5835e48b4b88659090fbad478b382aee225. 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/USUMC0500050.
Come With Me - Broadway/Original Cast/2005
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd338cf7df6d7cd434b8b6d5e57b8e0c913742a48937adcf71c9fd4cc1330a2f. 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/USUMC0500042.
Twice In Every Show - Original Broadway Cast Recording: "Spamalot"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dd42fe82879a6429d5026396c11d3809d1bf702de5418561395369900a6e32d. 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/USUMC0500055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c31e813c70746859d4a14dde0c259f7d92f03ec8c84eedcd4bd3ba94f68db6a. 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/USC4R2220204.