Pith Number

pith:PCRWI2VB

pith:2012:PCRWI2VB5UZSMEYXENXGL47J6H

not attested not anchored not stored refs pending

On the Digital Holographic Interferometry of Fibrous Material, I. Optical Properties of Polymer and Optical Fibers

Christoph von Kopylow, Hassan M. El Dessouky, Khaled M. Yassien, Mostafa Agour

arxiv:1208.1840 v2 · 2012-08-09 · 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{PCRWI2VB5UZSMEYXENXGL47J6H}

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	2026-05-18T03:48:14.495339Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

78a3646aa1ed33261317236e65f3e9f1d200b3db01af58be1714b44882890ce0

Aliases

arxiv: 1208.1840 · arxiv_version: 1208.1840v2 · doi: 10.48550/arxiv.1208.1840 · pith_short_12: PCRWI2VB5UZS · pith_short_16: PCRWI2VB5UZSMEYX · pith_short_8: PCRWI2VB

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/PCRWI2VB5UZSMEYXENXGL47J6H \
  | 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: 78a3646aa1ed33261317236e65f3e9f1d200b3db01af58be1714b44882890ce0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4475e9c1c44b7fb8e0f726ad7c1f4f48421f26930839a6c4c1d847280928e3c2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2012-08-09T08:15:18Z",
    "title_canon_sha256": "e6bdf0d0eaa1dc0fb871db162545332a30f846dae3debb8a27bccfa3586a8b5f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1208.1840",
    "kind": "arxiv",
    "version": 2
  }
}