Pith Number

pith:WGEU225R

pith:2009:WGEU225RRK6TU3EPXDPIAQDQWF

not attested not anchored not stored refs pending

THz meta-foil - a new photonic material

B.-I. Wu, H.O. Moser, H.S. Chen, L.K. Jian, M. Bahou, Shahrain bin Mahmood, S.M. Maniam, S.M.P. Kalaiselvi, S.P. Heussler, S. Virasawmy, X.X. Cheng

arxiv:0909.4175 v1 · 2009-09-23 · physics.optics · physics.ins-det

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WGEU225RRK6TU3EPXDPIAQDQWF}

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	2026-07-04T15:50:24.802538Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b1894d6bb18abd3a6c8fb8de804070b15a732ea570cbc976e857f43471031e7d

Aliases

arxiv: 0909.4175 · arxiv_version: 0909.4175v1 · doi: 10.48550/arxiv.0909.4175 · pith_short_12: WGEU225RRK6T · pith_short_16: WGEU225RRK6TU3EP · pith_short_8: WGEU225R

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/WGEU225RRK6TU3EPXDPIAQDQWF \
  | 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: b1894d6bb18abd3a6c8fb8de804070b15a732ea570cbc976e857f43471031e7d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f12891c7a57716911878ef29b3bcb48c39e4a0d76404a78894287f6d95e1ddce",
    "cross_cats_sorted": [
      "physics.ins-det"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2009-09-23T10:45:35Z",
    "title_canon_sha256": "2991e415c465166cbfce6a79f01eb6bb7b44547bbb0a1baaa45cd44eb1688110"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0909.4175",
    "kind": "arxiv",
    "version": 1
  }
}