Sara Anne Niemietz (; born June 7, 1992) is an American singer-songwriter and actress based in Los Angeles, California. She has performed on Broadway, at Radio City Music Hall, and the Grand Ole Opry
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 0x4e516fbda6643c5d964a321eea7f51b4e1df27fd3146e6f4ed9b52438cc4f143. 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/baa91306-ee54-4c48-8265-4229bd053b12.json and https://artists.proofprofile.net/proofs/artist/baa91306-ee54-4c48-8265-4229bd053b12.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 0xf11e32a2b4aa5b0c4df2db127779521b4860ba7acda8f95f5928d0ca77d5f574. 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/GBDMT2400991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63aa245eb15bb4ac531c5417f58fbfce6564dd417d0229c028800dcbb3502b16. 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/QM7YK2300196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e72981f0f01a5c40e452741f4293cbc7a6fc716a2ba586e84e4853d27853568. 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/CAN112000710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x409a9b4220b91301cb790777c6f49e7311f45430b2fc6726406ad0dc0ccd97fc. 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/US92U1908338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc59bbc59ea2a514de0175030c912f65a82589e494a3ae411d6c856b0a260b44. 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/US92U1908339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeccb500fb62807090d8224f80b75664a3146c3f79203652c01ced0a304c3713c. 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/US92U1908340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x158902f95342c2b758b531294f4b5b51e7580a9f6c6a50d7110b60168fc20cfa. 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/US92U1908341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x196e9f612fc61cd06ac652e6542601b6341bbca73c4bd81e91aabd06e2c9d61a. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/US92U1908342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa69d99f762bf96701269c75368888993eb7a680386f65722f1a9fc9668d9ed60. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/US92U1908343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4c5c72a15c2cd77c5ab36fbac6528bceb32c613d3c70c9214d4f1ac30c781c8. 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/US92U1908344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3ac7d568ae7dfb9f296b68eeb3c0abfae59835e6c04fe699f47917fe1536037. 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/US92U1908345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x916c148dbf4bdca6f44ce6886afdb1f6067ea50f1dba13e252342fefe8d75ec7. 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/GBDMT1600203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefbd7c4caca61e61799d7ecf4a25d6a267036f89727095cfe431e957df0db599. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/GBDMT1700276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e0f099b7b4f64686223fb3870f54f64313912bc29ac9e3ff1ab2a2c69fed67a. 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/GBDMT1600015.
BACK When They Called It Music: The '90s, Vol. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26772d9952df95b3be3ecf241fb150ee24554a1a04618901d5c0e2e07b3f49c8. 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/GBDMT2000158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadedcb9991b6c5ad75e6073ef87dc3cfa73d46db665ccc216a4e48e13de61529. 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/GBDMT1900030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1031609a7e2ab23f3c1574a3e9f31198aa666926028c718e8a224c1a4f5e408e. 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/QZPJ32153606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26772d9952df95b3be3ecf241fb150ee24554a1a04618901d5c0e2e07b3f49c8. 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/GBDMT2000158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26772d9952df95b3be3ecf241fb150ee24554a1a04618901d5c0e2e07b3f49c8. 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/GBDMT2000158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e9dd82529d174493853c66f078fa474177321605fcbb1699e2915434a8a6816. 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/QM7MR2000137.
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