Mary Fahl (born Mary Faldermeyer, July 1, 1958) is an American singer, songwriter and actress known for her work with October Project in the mid-1990s. More recently she is known for her solo singing
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 0x6a3bae228634bcbb3fd3400a07bf209cc510f86ca4360fe4f87f42f025f5d755. 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/ffb44a3b-2866-45aa-a6b7-2d8ec9097f85.json and https://artists.proofprofile.net/proofs/artist/ffb44a3b-2866-45aa-a6b7-2d8ec9097f85.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 0x1d2dfb8105fd4debf0300532a45a888c428e48dda78bb1b2502a14169d86a0cc. 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/USSM10214679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e9b6153a5f695557f62e4ebe90881173f99fc5d8645c322e78d645bd0ce1ff1. 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/USSM10303652.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53c14b2071da10f8f1e154e827c90586421f46dba902b74b17b8034295f95acc. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USSM10303642.
Una furtiva lagrima from L'elisir d'amore
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5277693b27d4ba526b775e6219a9569b7f48ab4228748f2b94525708a3eb64ac. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USSM10303601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x793fec90f65ec98821231a20b2a2652eb6593809930fa4b1ae518049a7912eac. 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/USSM10303662.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e1391975a3b0fac219bb1676ee8b1301875b07ebc6dbbe4105624010895cb97. 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/USSM10303641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc24930a4f27c846f58db4d57780d7c1c7e20dd1b25823575347f1fefef79a1d. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:12:18Z), 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/USSM10303661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabd134d617fa7b1123a49b2a5c36f327ab7828d540f4a65a9645ca77904fc2fa. 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/USSM10303663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a6e8ac007ccca63dadec9c482de5647cfd93ba400e3decb35d0d003db944cdc. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USSM10302199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f97586021fd9bb4e581c12b0391571a1d8289c694b5d12497c6c3846fb6e751. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/TCABR1315183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c7a5252bc59c5f40cc2007d185c5673ab0f64d6627539cfb68893c94b2c07f5. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T04:57:32Z), 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/TCABR1315203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc43e0e262a76f6b56b0e3b930e6f890f72653b8f1b042928a76173601e6ae2a0. Chain 2 (Bitcoin): anchored in block 958714 (2026-07-19T09:51:44Z), 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/TCABR1315224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0216988a8bc21aa98651193d328536e7defb0913f752cfd90d8bb5daec64b5f9. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/TCABR1315260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3551be59cc6058f5de95c4680a556243f6b1813c1c2d42f02ce0db283d1cc71b. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QZVEU2200052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03f76e1ba4ee1a760082cc5498e7348df561fe4a3eadef169a616bc69ff7742a. Chain 2 (Bitcoin): anchored in block 958568 (2026-07-18T15:23:47Z), 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/QZVEU2200102.
Can't Get It Out of My Head (Deluxe Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5277693b27d4ba526b775e6219a9569b7f48ab4228748f2b94525708a3eb64ac. 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/USSM10303601.