Jacob Lee Christian Blowes (born 4 November 1994), who performs as Jacob Lee, is an Australian pop, singer-songwriter from the Gold Coast, Queensland. In May–June 2014 he was a contestant on the third
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 0x8f711fe7a7e356d25e253a2b415716b89f9d2c0431f9021553dcc87d8d5bb226. 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/a5cc0ff8-4e66-4f39-b5ab-d6ca8a077978.json and https://artists.proofprofile.net/proofs/artist/a5cc0ff8-4e66-4f39-b5ab-d6ca8a077978.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 0xab06ad6426bfcb43068293e3a1129dad98cf509e755d5fae8b3bcb13bed1728a. Chain 2 (Bitcoin): anchored in block 958992 (2026-07-21T10:12:17Z), 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/TCACL1684557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ec2d91789354524ebd831e7e732e6e42db2f3885bd896f0b69f2676bc618527. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QZDA41851998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9abe35e1ed75f7ffa41af4ed3c842fe25a64730613cfab6603d9f28f100a6c8. 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/QZES91877462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b1b496613c266bc1a8d221b240918aebc60b14ff2db7d03d2fb68f10b47e3b9. 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/QZES91877464.
I Still Know You (Philosophical Sessions)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9493765ad5820cc4e08f8afe3ed6fc2000a605046679c8a7150be20d5e10a99. 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/QZES91877466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6e62e93dd420ba1d03d4d433b54fe9721301b69188655c5e3dd9d5e209de514. Chain 2 (Bitcoin): anchored in block 957805 (2026-07-13T04:34:37Z), 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/QZES91877467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a60121e23ecc1be603e3d6b6c44a8b96fb7465399236e3424fc9c5ec5bb4082. Chain 2 (Bitcoin): anchored in block 958622 (2026-07-18T22:58:55Z), 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/QZK6F2099311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaef0ded77af27fbb557b47b4a5160a604a9ef86c7d95a488c463bee443e261bf. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/QZHN72026833.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c7e7235fb0b4044669e43b1dd08b5a748e09dbf2a2a243cc98f27444e3d401a. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/QZHN72073620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e89883001ac499c1f9f7ec7a86afccb3e3031ff911d28453e264fb0804aace4. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZHN92081099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa67e65e3279634a807b476fd2d6b5d2f777c133b3280367c670006515ed68f06. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/QZHNA2028765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2c7a6f944150e2f3d160bb510b3418a14f275be373d9faa2809f6b489eb01d5. 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/QZHNA2043148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde5e357f2ff9ec2a03d3db09bcd6b77887f4d0319cc7f11960b48068454e3fe6. Chain 2 (Bitcoin): anchored in block 958508 (2026-07-18T06:27:01Z), 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/QZHNA2043226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc03144594a22cef31b56952212b6f5279c91adf12fad0759fc788e67c4ae625f. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/QZHNA2047524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7d60807e2f803d83c061f92737865cfcdb5f6c5187dca5e47c775ef8669b102. Chain 2 (Bitcoin): anchored in block 958720 (2026-07-19T10:53:46Z), 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/QZHNA2057804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1fc5dd67f4c6634def34c4af71deedcd75a04f06de37593a68ae346c3346d40. Chain 2 (Bitcoin): anchored in block 958422 (2026-07-17T13:35:31Z), 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/QZNWY2020290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6217ac97c2927a4a3da60fee222355a419b81cb23c2b3ea89445acfc2ea591b7. Chain 2 (Bitcoin): anchored in block 958218 (2026-07-16T00:33:33Z), 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/QZRP42154081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa797ff876bc15c4f0613801894e655c04d4b93f213bfab288cb5d29ea8f137ba. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QM4TW2297251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x690f18bb90a896f9651e1021455e8a70cd01d823932997227286fbba3e184dda. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/QM6N22218799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71974236b98098a91b25036335ede781880d0a3c5b1770de33057d9bcda8de82. 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/QMDA62294660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x814bc095cc1e5c7875cac7c7e8363dc62654f03bd94836c6f668cbd4738a472b. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/QM4TW2321451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe1773b88aa6f5773e61fbd60c1211460829fddca56e3ecdb4182b2e5294fcae. 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/QM4TW2462945.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x690f18bb90a896f9651e1021455e8a70cd01d823932997227286fbba3e184dda. 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/QM6N22218799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71974236b98098a91b25036335ede781880d0a3c5b1770de33057d9bcda8de82. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/QMDA62294660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x814bc095cc1e5c7875cac7c7e8363dc62654f03bd94836c6f668cbd4738a472b. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/QM4TW2321451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe1773b88aa6f5773e61fbd60c1211460829fddca56e3ecdb4182b2e5294fcae. 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/QM4TW2462945.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x164e9767bd78d9429e4636ab1e72efa5253f81d9d2ef20af8374755b8a5f6a98. Chain 2 (Bitcoin): anchored in block 958218 (2026-07-16T00:33:33Z), 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/QM4TW2462982.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c330fbee0ac4e0401d9db4669f8d7ae265d085a7d05dd350f9f76e9013335ec. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/AUNV01800440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1168812edd798a4db6c2594144f7babc355753308d7b255c5623140eaa50dac3. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/AUNV01800442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x767bacaed0aadb846b731af83ed8d81d899af869e1a56ec3a27d40a4138366ae. 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/AUNV01800443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa7f7fd430b336ea5bc62d7f26386620e7c6cd9e24f64d58ed2de082d510d0dc. 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/AUNV01800444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7b6f6d26f29e393819cce0361cdbf87567ee919f5dc96137c3b14309e27907e. 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/AUNV01800445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11c283ad1304a606cba8927cfbf1d2ead8226cbb9524a13ec2d5c15e4a71a725. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/AUNV01800446.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x419ceab829cd39a0f1e3e89886c951351e27ac4440c957438bbdf1386175d529. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/USLZJ1632633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dd5a2a28a154c7cf775d2e4c30cb0f289e604014f06a689f40dbc1a49215933. 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/USLZJ1632634.