Pith Number

pith:UTWFRG5L

pith:2018:UTWFRG5L3VVIPUSLG4A52WORE4

not attested not anchored not stored refs pending

Development of Photonic Crystal Fiber Based Gas/ Chemical Sensors

Ahmmed A. Rifat, Bikash Kumar Paul, Kawsar Ahmed, Rajib Ahmed, Sayed Asaduzzaman

arxiv:1801.06170 v1 · 2018-01-03 · physics.app-ph · 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{UTWFRG5L3VVIPUSLG4A52WORE4}

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	2026-05-18T00:25:35.413406Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a4ec589babdd6a87d24b3701dd59d127363d4b56b9774472d38ebc56bbec3edc

Aliases

arxiv: 1801.06170 · arxiv_version: 1801.06170v1 · doi: 10.48550/arxiv.1801.06170 · pith_short_12: UTWFRG5L3VVI · pith_short_16: UTWFRG5L3VVIPUSL · pith_short_8: UTWFRG5L

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/UTWFRG5L3VVIPUSLG4A52WORE4 \
  | 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: a4ec589babdd6a87d24b3701dd59d127363d4b56b9774472d38ebc56bbec3edc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5619411bb8e00bd79dd2c6665f3d70e2c0e126cd4caa5408e947439d14a46e57",
    "cross_cats_sorted": [
      "physics.optics"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "physics.app-ph",
    "submitted_at": "2018-01-03T22:15:00Z",
    "title_canon_sha256": "d48450f6f7a5fd88093119d08945c6fba0c12c7338c32309b5124e71786acc15"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1801.06170",
    "kind": "arxiv",
    "version": 1
  }
}