thumb|215x215px|Elizabeth Moen in concert at Codfish Hollow, July 4, 2018 Elizabeth Moen is an American singer-songwriter based in Chicago, IL. Biography Elizabeth Moen grew up in Iowa and taught h
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 0x43ad248d597833e303735cdaf9e2aee3ffc32e18e4bf6c6b5b8169ea9e9f889f. 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/dc89a0f1-a993-4a4b-ad90-eb0af0fe8744.json and https://artists.proofprofile.net/proofs/artist/dc89a0f1-a993-4a4b-ad90-eb0af0fe8744.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 0x0cc7f727842b3f2dec606da3230db21ec404b020d4e87496bb6fcc418de14cac. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T11:41:42Z), 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/USHM21769994.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7d147adbffe2aa916365d8b803494c71d22e879eb71747a904eba75e0e05f74. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/USHM21769997.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6d00bb2a6681e657029a0aba74cffa985d915b621090efbc9966313c60974c9. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/USHM21769998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x924dd9b425360928d63128bb5fbe48c332939e89b453107f5875b2dd946b6104. 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/USHM81838106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13ebbb1fd508316bfef7bed2e0ac54949f2cf25bd66901297b33b4805f0529d6. Chain 2 (Bitcoin): anchored in block 959002 (2026-07-21T11:47:29Z), 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/QM99V1913306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97a4458a0dd720cfb8fbefdb180a99fa683d7dd6ff4237b91c09d277ddd0de9e. 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/US3E42000040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcc764f31d0d7426e23847589f9fc06dfa0e48820ceaf0434701a1e31083d159. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/QMBZ92282285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1052a1b2969cc3f8e8e12ecb238c10186858ee3c403113504dd3b1de9a512d36. 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/QMBZ92282283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6b2f6495b08f83c4c7b81a90ed7b6b5cf4fddfa79b942c516d6cdc02d8c84b1. Chain 2 (Bitcoin): anchored in block 958878 (2026-07-20T12:32:15Z), 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/QZMER2271832.
Blue Christmas (Live from Salt Lick Sessions)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6423a549af0c9189d6b5c2632cff92b9abf4055edbcf0fdb063cffce76f51e1a. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T15:31:18Z), 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/QM4TW2427691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec17e079b60c881e186332afbfb46b030a45f9e91a521406d449e0c40357d87d. Chain 2 (Bitcoin): anchored in block 958410 (2026-07-17T12:18:07Z), 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/QMBZ92458509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc35607eb9a1ae3acf581ffd5f201cede5543a41669c07621a81d9b85e512730b. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), 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/USY242467800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa48077a994581bb5c9a2c6bb74babb64df9d7fb7cc560691a27a5d56d91066fe. Chain 2 (Bitcoin): anchored in block 958822 (2026-07-20T04:30:07Z), 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/USL4Q2582291.
Indie/Indie-Folk Compilation - Winter 2022
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5464cefed11da0c8a3ab10e70ad9204ec150aac6a6e073c9d7a7ff8e860b966. 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/USHM22271201.