Martha Kristin Hersh (born August 7, 1966) is an American singer, guitarist, and songwriter known for her solo work and with her rock bands Throwing Muses and 50FootWave. She has released eleven solo
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 0x8b850f0a2cf73588f390b68ed8f83708d52255cdf207d0a04bfee0460d5f3879. 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/d7a9cb29-5b74-4ae1-911e-bb7310ccbefc.json and https://artists.proofprofile.net/proofs/artist/d7a9cb29-5b74-4ae1-911e-bb7310ccbefc.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 0x36f537c056f9088b119c7146567b1e32a8e49cfc9ace4726081cc57442584470. 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/GBAFL9400002.
Hips and Makers (30th Anniversary Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d4c8935ab85c6c2a1b5a8d440a45b06a95a470993ab5c00c8264d18fe521c5c. 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/GBAFL9400011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36f537c056f9088b119c7146567b1e32a8e49cfc9ace4726081cc57442584470. 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/GBAFL9400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfeb8fb871d64ade03ef1aa4825a2c549d7a475a5dea07548702be31ec3ffc76. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/GBAFL9400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa81e79d6da3780e12bad8429509b262f97e5afd348f0b075f291ca623287d48d. Chain 2 (Bitcoin): anchored in block 957741 (2026-07-12T18:30:59Z), 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/GBAFL9400004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf99fc5b90223cdfa2b0bb1136ab5830e8f9c86a3f28e9887be45cff7677bad3. 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/GBAFL9400005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeef5a64e15b1dcb9d937163024376f5c5474a115d2bcb65c9428769a44588b41. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/GBAFL9400006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1587f9aba84289b1ee53b31354230d59fdd240e9c8cc6a52310e0aec18eb84e. 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/GBAFL9400007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa070e480ba880626ae8a2a7370360e5028ce21259e90dfdce4b71c0dcab19646. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T18:01:47Z), 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/GBAFL9400008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f94c4de08563f30d45945c205c64870f51ec12683d141e3898e054b0d79b1fb. Chain 2 (Bitcoin): anchored in block 958812 (2026-07-20T03:24:09Z), 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/GBAFL9400013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76f58d7b22335118311949c36b059d897bae6caec37b8318bbe8431a51309ff6. 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/GBAFL9400015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68f15f9e48a7c34ba945025921b9fbf341a29c4dedd2d546fea73c5b8d2e5fd6. Chain 2 (Bitcoin): anchored in block 958083 (2026-07-15T01:50:31Z), 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/USRE10100889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfb93eea343b8bd1115b407bb01e866d8fb8ae5897f02ffc7e663101fef619f1. 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/GBAFL9800002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe91f2a4a75b0b9534888780d1ba5cb5d5f5884f10f244765bac782a596c32d1. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T15:07:00Z), 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/GBAFL9800012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c24440b1ded7090c615eacaebad47343291004b843cc35fe1ea0834f12fd6f0. Chain 2 (Bitcoin): anchored in block 958401 (2026-07-17T11:10:25Z), 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/GBAFL9900285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb5f3d9e46ad8adaf24fa382ac206b74e96c33801acbe06d67d07627f3412540. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T06:33:30Z), 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/GBAFL9900079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e51c170aa06a60782f4f290052cc7bfb0d635f15d182e6c09975d1af50373fc. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/GBAFL0000092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ae81a357605bb2d65d4a7f18eb55565e187a241728b845e5c85944aad2d92ab. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/US34F0900045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd3a94498212c6d8c70ac7d7ed9df039ad67b9a011e67930a5b749e723b71294. Chain 2 (Bitcoin): anchored in block 959080 (2026-07-22T00:07:05Z), 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/US34F0900047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x407e436079b9b4da82e9b143963a7302857a5c526755124066fe22ee715eff09. 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/GBCKK1853601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e2450900ba73b80503106fbc7484f8db7e8101c43c95c9ae4e6c40cebcaff19. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T20:03:27Z), 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/GBCKK1853604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87fbb5e1caca1b054b102a482e87dd938dc1d3f7ebfcf829ac930cd47ff68271. 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/GBCKK1853607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd134b4713081f8a7b30991b9c3cb850384e3d6e7d3a75a26895ff1300fa5664f. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/GBCKK2364901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x041eb370ddb582a647f81b39abc07fd63a2d77eb83d6ad0da2b9e8d977257e07. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/GBCKK2364902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6edf38fa2843d14cc420a9dd8242a57d065778c299e6e22ce93fc722314ac63b. Chain 2 (Bitcoin): anchored in block 957741 (2026-07-12T18:30:59Z), 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/GBCKK2364903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5399b4d100bfed91ceb7e267cd33d2101354206c5f79cdacc5c0675adcadbb3. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T16:17:58Z), 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/GBCKK2364904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe91f2a4a75b0b9534888780d1ba5cb5d5f5884f10f244765bac782a596c32d1. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/GBAFL9800012.
High School Reunion: a Tribute To Those Great 80s Films!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc84e63ac6652840b1a656450e1ae9a133e26aaf044d1413974259c5e4d74f540. 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/USF460700086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d48ccab8a63e109aa80ef49a96111ed2cc73102913bd58f536423c641b35f5b. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/GBAFL9300133.