Pith Number

pith:EWCVDGWX

pith:2014:EWCVDGWXAK6CTHOXTEYJEAFHYB

not attested not anchored not stored refs pending

Characterizing the variation of propagation constants in multicore fibre

Douglas J. Ashton, Itandehui Gris-Sanchez, James M. Stone, Peter J. Mosley, Robert J. A. Francis-Jones, Tim A. Birks

arxiv:1409.2738 v1 · 2014-09-09 · 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{EWCVDGWXAK6CTHOXTEYJEAFHYB}

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	2026-05-18T01:42:06.050240Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2585519ad702bc299dd799309200a7c0400e1d613f9bf16df8e07ee0fbe30d2f

Aliases

arxiv: 1409.2738 · arxiv_version: 1409.2738v1 · doi: 10.48550/arxiv.1409.2738 · pith_short_12: EWCVDGWXAK6C · pith_short_16: EWCVDGWXAK6CTHOX · pith_short_8: EWCVDGWX

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/EWCVDGWXAK6CTHOXTEYJEAFHYB \
  | 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: 2585519ad702bc299dd799309200a7c0400e1d613f9bf16df8e07ee0fbe30d2f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8ad9bc55de0a48c820dbf25f822b6f318c5bea0f173bbf9fa272198518297403",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2014-09-09T13:53:44Z",
    "title_canon_sha256": "bc4af8d710256c1dd32591d595e810d4bee514286e653f59183e528ede8cd4b1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1409.2738",
    "kind": "arxiv",
    "version": 1
  }
}