Children 18:3 is an American Christian punk band from Morris, Minnesota. Formed in 1999, the band consists of homeschooled siblings David (vocals/guitar), Lee Marie (vocals/bass), and Seth Hostetter (
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 0x162aeea9e7784136f128041bbb241fc9452bfe2c232d32cffa0da732b5cdb588. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6539c624-3f9d-4524-a597-1290b1b67d51.json and https://artists.proofprofile.net/proofs/artist/6539c624-3f9d-4524-a597-1290b1b67d51.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 0xde33acd18823f878b234769a8506a773fe2eaedffb68b9d78075a508c6b75d73. Chain 2 (Bitcoin): anchored in block 956404 (2026-07-17T03:59:22Z), 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/USTN10700653.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b583f9ebc344bcf3aa07e874f85fba1e9b79a5506352733f30985259e9766d3. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/USTN11200363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b8f5ef153b1a76f4dd6fea5da963a4de4cd3ee87844ec63389e49aae1676d42. Chain 2 (Bitcoin): anchored in block 958346 (2026-07-17T04:21:12Z), 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/USTN11000200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11c776552e3e60828a30eb90d566a60da22efcbafbf1e867030e98bdb642b234. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/QMGVJ1500030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5b44aa4d51591bfa12aa7d4bd9b5a286fcdf73fc020de9bf0678352509a76bc. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/QMGVJ1500033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2381919ae2eb01559894e780c04e8a749afd2c67bd5357a59f27d63681fd270c. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/USTN11200365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bf3c6153645304ac5f692ee897b1cfad06dd817d453ae0fbec556607b1b9ea7. 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/QMGVJ1500038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82da2946a3902c33d180a63d8235178bc6fcc275d823552ccd55be2e9582fc49. 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/QMGVJ1500032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x793fbbd7184dcb841a225067ecf605251d5ed6f315c7e01037379ec25fe28156. Chain 2 (Bitcoin): anchored in block 958817 (2026-07-20T06:34:14Z), 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/QMGVJ1500031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc570010f651db3122c2829add3df1242c4294eaf646b314d6802732c85e2abda. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T18:19:21Z), 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/USTN11200371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x915e25648d33e0db66cfe38046314346b91fd03d0d45b281547f5f058ade74b9. 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/USTN10700655.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc63ba794633bb865eb68d5e09d97e60bed94499da0d51e3e122de54e32640d35. Chain 2 (Bitcoin): anchored in block 958788 (2026-07-20T00:28:02Z), 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/USTN10700654.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x425f52228a544de8dac2ad847fab3d0c37b4122bf69acf31a8e61d3477923f3a. 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/USTN10700662.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfae75d0ce2bc0fbf08bee3b7fbd35e10db8be5614b8e53d498a4d1c38781f751. 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/USTN11000198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73dee4cbb17b02e158f3e7f5427ff1728405cfcea8ad1231aea8515854d35cd2. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/USTN10700656.