Pith Number

pith:66UIL32J

pith:2020:66UIL32JBBUUXHUBJB4DRWEHEE

not attested not anchored not stored refs pending

Ultrafast two-photon emission in a doped semiconductor thin film

Futai Hu, Liu Li, Mali Gong, Yuan Liu, Yuan Meng, Yuanmu Yang

arxiv:2001.03975 v1 · 2020-01-12 · physics.optics · cond-mat.mes-hall · quant-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{66UIL32JBBUUXHUBJB4DRWEHEE}

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	2026-07-05T00:32:57.546528Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f7a885ef4908694b9e81487838d887212550afcc031d77b536dc75f8ff46fa6e

Aliases

arxiv: 2001.03975 · arxiv_version: 2001.03975v1 · doi: 10.48550/arxiv.2001.03975 · pith_short_12: 66UIL32JBBUU · pith_short_16: 66UIL32JBBUUXHUB · pith_short_8: 66UIL32J

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/66UIL32JBBUUXHUBJB4DRWEHEE \
  | 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: f7a885ef4908694b9e81487838d887212550afcc031d77b536dc75f8ff46fa6e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c500fa5d309a9acbe13e355aecb02a040b949fa6da9acb06479fae2847a179ae",
    "cross_cats_sorted": [
      "cond-mat.mes-hall",
      "quant-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2020-01-12T18:38:23Z",
    "title_canon_sha256": "c9e51fdfacf820434441d7299e00e2d471100f3b905d07c45b956a9bdfe71bd8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2001.03975",
    "kind": "arxiv",
    "version": 1
  }
}