Charlotte Ann Martin (born October 31, 1976) is an American singer-songwriter and musician who performs predominantly on the piano. She has published several studio albums, two of which have received
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 0x7d0d2403e8397d3cb831ef9aef489ca9a6ca5d94398066e0b33b8a2782e3c466. 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/bd6992d3-072c-4c63-96cc-d45a15904001.json and https://artists.proofprofile.net/proofs/artist/bd6992d3-072c-4c63-96cc-d45a15904001.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 0x7cf172ad845bdaad57e0cbdc904af7c89ebb386e633366f2d1810ab7fda4b550. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/USRC10400095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6d9573b0616166fa029431187409e07fdd35ea17fd0cc2bc270af76643a8d9a. 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/USRC10400203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ff3acf3266471d44808ece61747c837dbe7b2193766baf3fc9dae72d542916d. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/USHM80533534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbf318710261e0d6fd00617c95eafa3e456d9de100013a9b07f911089ecdccd2. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/USHM80533535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafbd1e2934a89435863ef322c4f1840e37cd29bc533f2a0d59799507d9092102. Chain 2 (Bitcoin): anchored in block 957671 (2026-07-12T07:35:31Z), 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/USG4J0600015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b272cec6063b2a52658f64ce8114c8aa61fa632c634f127c2169297404f219e. Chain 2 (Bitcoin): anchored in block 958696 (2026-07-19T07:45:31Z), 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/USHM80851699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3e10019d91d6126a95143c1ca560b23d192cc2ffe89071df020ce74aeaa5797. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/USG4J0600066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b7dc91e5078ca26b36fed8cbbdf6890496e565948fd487bdb57600f41c9cbd9. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-21T09:00:52Z), 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/USG4J0600068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c291d2450c1123c02b80893241fdc8d84349cf0b6a5c7dfceec16f88260b5fc. 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/USCGH1291658.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ddc7ecedf3c930c26c540c4e62886ebda52bfe6881cc89626ee54d5d2d4db9a. Chain 2 (Bitcoin): anchored in block 958392 (2026-07-17T09:46:31Z), 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/USCGH2540792.
International Space Station (A Love Story)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac6d7430cba5354fa338e98b88dbc9539e0db47b5dd2c186b9da2692d157ad06. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/USDY42564196.
Charlotte's First Attempt at a Mercury Track
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09be630933723c5091734d8d15dd3a0f3316dcd4bc818395b168d5dbd045e7cd. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/USHM82544831.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc27dc8047993c3ff5d437db8a1394c7ddd926dc7183bd24b8be15247e99ebeb6. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:30:32Z), 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/USL4R2542841.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b76b457dc2c97c60eb025f78745d80f0af9e31a711e73d8c5ed7e787213026d. 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/NLE710780726.
Sweet Things (feat. Charlotte Martin) - Tom Cloud Remix
Elements of Life Remixed (Extended Mixes)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe23c3123de98e599ee46f4439d7c73a415e582d6eb64746fe2d4f4639dffec90. 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/NLE710881241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b76b457dc2c97c60eb025f78745d80f0af9e31a711e73d8c5ed7e787213026d. 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/NLE710780726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x854a5e9d2873185788b5be6289507b5472c5af53b9222a9733bc64dc204fc7e7. 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/NLE710881226.
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