Pith Number

pith:5LGTCDNT

pith:2025:5LGTCDNTKM3AI26EPZRAP2HNNZ

not attested not anchored not stored refs pending

Direct Observation of Massless Excitons and Linear Exciton Dispersion

Bowen Hou, Cong Su, Diana Y. Qiu, Jinyuan Wu, Luna Y. Liu, Steffi Y. Woo

arxiv:2502.20454 v2 · 2025-02-27 · cond-mat.mtrl-sci · cond-mat.mes-hall · physics.app-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5LGTCDNTKM3AI26EPZRAP2HNNZ}

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	2026-07-05T10:30:31.642236Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

eacd310db35336046bc47e6207e8ed6e7145fcc57e01388999aa25227f89e068

Aliases

arxiv: 2502.20454 · arxiv_version: 2502.20454v2 · doi: 10.48550/arxiv.2502.20454 · pith_short_12: 5LGTCDNTKM3A · pith_short_16: 5LGTCDNTKM3AI26E · pith_short_8: 5LGTCDNT

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/5LGTCDNTKM3AI26EPZRAP2HNNZ \
  | 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: eacd310db35336046bc47e6207e8ed6e7145fcc57e01388999aa25227f89e068

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e6eb80835ec2e45e2d89dd8cf43e3ef7dbfead59621ed91bd4f9cfbc94013fb0",
    "cross_cats_sorted": [
      "cond-mat.mes-hall",
      "physics.app-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.mtrl-sci",
    "submitted_at": "2025-02-27T19:00:28Z",
    "title_canon_sha256": "ae7fe067090630a86ed5c3c75a4681c9385f660828bf0be855a9111e8768861e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2502.20454",
    "kind": "arxiv",
    "version": 2
  }
}