Pith Number

pith:KD5LTYG7

pith:2026:KD5LTYG77A4SSJJZDWXPQQRQOL

not attested not anchored not stored refs pending

A first-principles approach for predicting infrared optical properties of solids

Dudong Feng, Karthik Sasihithlu, Sreerag Sundaram, Xiulin Ruan, Ziqi Guo

arxiv:2606.13143 v1 · 2026-06-11 · cond-mat.mtrl-sci · physics.atm-clus

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{KD5LTYG77A4SSJJZDWXPQQRQOL}

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	2026-06-12T01:09:42.691983Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

50fab9e0dff8392925391daef8423072fe19abc846ce9e6e8d74f550c20ce4bb

Aliases

arxiv: 2606.13143 · arxiv_version: 2606.13143v1 · doi: 10.48550/arxiv.2606.13143 · pith_short_12: KD5LTYG77A4S · pith_short_16: KD5LTYG77A4SSJJZ · pith_short_8: KD5LTYG7

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/KD5LTYG77A4SSJJZDWXPQQRQOL \
  | 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: 50fab9e0dff8392925391daef8423072fe19abc846ce9e6e8d74f550c20ce4bb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ff776e3dbf9d407ac0b403d2182f0f6c9c811c6703a33045e1e12c5774578142",
    "cross_cats_sorted": [
      "physics.atm-clus"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.mtrl-sci",
    "submitted_at": "2026-06-11T10:05:59Z",
    "title_canon_sha256": "fc7aa944a6fd8177cce59610001e5c86598e638b7446277ae2683ede9205aa1a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.13143",
    "kind": "arxiv",
    "version": 1
  }
}