JXN may refer to: Jackson County Airport (Michigan) Jackson station (Michigan) Noviken VLF Transmitter, a NATO transmitter in Norway JXN (musician), an Australian musician
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 0x86196ad42515673ebc5217865d6c420de620579ee4b85720d09d3f7f9df878e3. 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/4e62a454-ff9b-475f-9318-3448efd59e98.json and https://artists.proofprofile.net/proofs/artist/4e62a454-ff9b-475f-9318-3448efd59e98.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 0xd01c382ea6e1c1141d7a31e42a892e7ef474deeeed8996b25af56381608aaf70. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/NLRD52017996.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe35981c4d5e04f33ecd1585715cb54d6badfd271141d1d1ae5552956d08b832. 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/ITLGE2200059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e101069f765474a8752b84a8a3e4518a1dea22d33e44ff4d0ed56198655b4cc. 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/ITLGE2200058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7cef60460e9dd66ec3b4f41a70e152b819ac763e36e39624bb254cbf6021acd. 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/ITLGE2200060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b06c4321c3825799e67bb09d6513732f4724c1981e7d2d27701baa67618e524. Chain 2 (Bitcoin): anchored in block 958401 (2026-07-17T11:10:25Z), 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/ITLGE2200057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba6c56322c4f73801716e5ba67f9087b451bfd2b22c56d8706921ea460d993f4. Chain 2 (Bitcoin): anchored in block 957785 (2026-07-13T01:55:31Z), 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/ITLGE2500153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9581134cb5d050f115ed3edd63b5e873462b9b10da10f133c689c0dbfad29249. 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/ITLGE2500152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x212bf18f4493bd908d2c64e0d941b7b2670aaa4d034b320f4d2e3e3e0b7ede64. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/NLRD52017988.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc4d4c6356506810cc9769fd3ec7bf7a6c862c242363ead3d5492a8f57ee5654. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZHN32035509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa617d19624ed659eb1d16672e85d39797bf2283dfd81b768511521447688bdb8. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/NLRD52017989.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8f50d5b7d978c7f34bf2a6c152d37929b27e1dd56d72e72d08077e6cd13dcd2. 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/NLRD52010190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26c5c73c4c8704aa14c3cee82d7a43af1dc8c5b34510871fa02162a863b85db8. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/NLRD52017990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fb9fe6fcdec4b67ab69b99a14cacd7126fb2a6baca459a406df790fc7e98880. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/NLRD52017991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a57c219fc12b0274c3f8774232afaa84827d9fc3a0dd862448fecd384bdba5e. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/NLRD52017992.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5dd476fb9af18af71f6eaffe2518e7189d095b6faece88da5eec6c38c594238. 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/NLRD52017993.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39e6b89d140c04b03f3f167c304dbeaefd8337b9199ecf53db4d2a62c545c250. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/NLRD52010192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9786d0097641aaf168393f30e9f81c3a9ead40a947eddf1cac111a137bdd2f86. 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/NLRD52010194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x429c4202fe24a5b4b53a5997bd31e8d41715d20216701d2248e402bc46c8eb2b. 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/NLRD52010197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1748b147af9a8351179272cbec560ffa3709f97d5888f2ab4e46521d961e6f60. 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/NLRD52010198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c1bd57a9838b6836c6230d8414d02a2b2dc120b6fcc5e347700314e7b1d5628. 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/NLRD52017015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08731ed9ce0be1c0469df56b2530c8fa49d3efebebba8234c8ab3e91ec8c23bd. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/IT2J82100005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef2fb9cd2955a950578ff8f4c15a18e280d7b10a4c1d029435ceaa870dc8e515. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/IT2J82100025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x188ef29e75bc4b00b75e5401b6a7207f9f4f1dd7a7ab4c6a20113af93e50fa71. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/IT2J82100026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x241a056685e22d608a8a96984766f74fb25198249eda2d1725a7f8bcf9232331. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/IT2J82100027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bce0198fe227b6adc65e0293e9bcf98a48c5e9a3ab7616c1674dc9ec691da1b. 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/IT2J82100028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfeedd487d0cf03ad36fd3c2eed3eaa4d317e84154d3e1fcb5445a9340296b83b. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/IT2J82100029.