Katie Herzig (born March 6, 1980) is an American singer-songwriter whose songs have appeared often in movies, TV shows, and commercials. Personal life Katie Herzig was born in California to a music
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 0xfef5b32855482c8c507bc1839072bf3690c590f1eee9ff026c3efa7b63cd0c2e. 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/b72d118c-7be9-4c48-ac04-1b5e81b33b9a.json and https://artists.proofprofile.net/proofs/artist/b72d118c-7be9-4c48-ac04-1b5e81b33b9a.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 0xde6d35b093bb63ce6da20282dd24ab1de96ac4846ff30e47e58e97e21247e5ef. Chain 2 (Bitcoin): anchored in block 958130 (2026-07-15T08:37:45Z), 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/USTC70878883.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc26da800196e9e05724789f75ac8f233350aa3fc8dcff548b1bc4e3121b39e02. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T02:31:22Z), 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/USTC70878861.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb48a26562c23ba4825ffd4bcf9974cdfbd972da5d5138a21a3c419899aa763f. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-15T21:23:21Z), 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/USTC70878863.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc9c5865d9b6ada995984ed3e534fac1b37fb99129120856117828072120e0b8. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/USTC70879295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7f30776a880ccf19e2ba82342366a48fb03d9488a866220ebe071f4937385b2. 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/USTC70879301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab5f0ce7f26603fd6c7d3d51ea258e0719a575c0eb43868d19eb975959ee4f95. Chain 2 (Bitcoin): anchored in block 958130 (2026-07-15T08:37:45Z), 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/USTC70879302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dd446f51d8c36101ad7c5dbf3c88ee5abd457b25f8f2f295bc86550a77693e8. Chain 2 (Bitcoin): anchored in block 957866 (2026-07-13T14:54:25Z), 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/USTC80967534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbeda3c09e584abb6edbf8af0fc2d3c1ed8b787e3d68113a678061e47b053cd6f. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T16:21:50Z), 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/USCJ81100634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b78f4c408affcfa78919c1eac5ce7ad3533048110f3db6b1ba01d790d0b2e01. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/USCJ81100635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb49c01fa69a3868dfa869417594cf27c7570850006fd5fee1a57c147018760b. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/USCJ81100638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92e25edd7964ef501656942859fef7a34c844b213b20e3ce6f7a41b14a8fdf14. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/USCJ81100639.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d6cdba2c197862df0ba9461a950829c6fa8cd92974092feb15726fff695aec7. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T16:21:50Z), 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/USCJ81100640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07e5892c7951ddca5234e460f95ed1a1d7f2913b966b35263a334beb35f9490a. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/USCJ81100714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfb20130925f288f22ff44b769d4da5ede1faf17f9ad9ddbff470f30da81367c. 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/TCABD1246771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83dbe4ad9893cbafdbec6d797e54e9502945c24d0a560efee0f0e6e221c21e50. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QMF921450093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9969890b88bded8723ea75567daa3accec1c35a180ac9c8f2ecf14ec188cba1e. 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/QMF921450095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xceb04578a247c9393670f63045376132d7911bbb24ef724e57d2c65284c5644d. 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/TCADK1774701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba31cfdfe1c830d57c7293610eb1158d06f6e1192ee00417f73c9a72c7925852. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T19:17:28Z), 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/TCADG1742508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcc878c1c65ed71f8764054c44f54c91314789ae41b03cfd5da7b8c44898be07. 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/TCACX1712921.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaca8d95f7deffa11bbd624253782b8c429582aed9c8f73a471618832c122e3d7. 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/TCADH1777784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x209382b28ffc3bef5c4de6b49f917abc323be30518cbe89e6b8f082676f13058. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T08:19:47Z), 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/TCADR1881018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5669adf872af4da61376c7357fbdb4bdb9c9360c33acb7281207a838898be4dc. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/TCAAZ1175530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d513e36f1b75db73a5718e57c9c27e01ca1b8b79eb3e0c72ef4c165cf99e6bc. 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/USUM71310291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3767e96601d485c7992c1900665162d024789b5e8c6bf17baa0b9f17febe5e69. 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/QZS7J2377098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2835a89728bc3fbc31c015bb0d4727f2f1c84c2868a127a70de0edbfda3dbef6. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USUM71501390.
Animal Crackers (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb85272957e7714ca0cce3f148e3651b3bdbd61e008a56cc17982a704dd22ab8. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/USCJ81100643.
Grey's Anatomy (Original Soundtrack Volume 4)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec09e5dd10762f560957ea1a485539c27ef7385c1a64b2916355562deabf59b5. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USCJ81100636.
Drop Dead Diva (Music from the Original Television Series)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa56c9e018924b519b2a737938496faf06a3852761d8e19f8d19faf4004b4da54. 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/USTC70879300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d513e36f1b75db73a5718e57c9c27e01ca1b8b79eb3e0c72ef4c165cf99e6bc. 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/USUM71310291.