Pith Number

pith:4EGUV7EC

pith:2003:4EGUV7ECIIJGYYLITRS6BGUGXT

not attested not anchored not stored refs pending

Mode-Field Radius of Photonic Crystal Fibers Expressed by the V-parameter

A. Bjarklev, J.R. Folkenberg, M.D. Nielsen, N.A. Mortensen

arxiv:physics/0309030 v1 · 2003-09-04 · physics.optics

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4EGUV7ECIIJGYYLITRS6BGUGXT}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-18T01:05:09.016281Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e10d4afc8242126c61689c65e09a86bcdf5e1f7df22b351861a55179973ad65e

Aliases

arxiv: physics/0309030 · arxiv_version: physics/0309030v1 · doi: 10.48550/arxiv.physics/0309030 · pith_short_12: 4EGUV7ECIIJG · pith_short_16: 4EGUV7ECIIJGYYLI · pith_short_8: 4EGUV7EC

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/4EGUV7ECIIJGYYLITRS6BGUGXT \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: e10d4afc8242126c61689c65e09a86bcdf5e1f7df22b351861a55179973ad65e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "10b259255d8c2983bf05fedcb3738bb89d364cf69b355ef45229b26791dfecf3",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "physics.optics",
    "submitted_at": "2003-09-04T07:04:01Z",
    "title_canon_sha256": "e4593b2cca0b73e4a45928045be2e145089d39012c9e74a9365e3f0e2d29719d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "physics/0309030",
    "kind": "arxiv",
    "version": 1
  }
}