Pith Number

pith:BEQRY4HE

pith:1999:BEQRY4HE2WXT4H4FA42TVTD65V

not attested not anchored not stored refs pending

Symmetry Analysis of Second Harmonic Generation at Surfaces of Antiferromagnets

A. Daehn, M. Trzeciecki, W. Huebner

arxiv:cond-mat/9904350 v1 · 1999-04-23 · cond-mat

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BEQRY4HE2WXT4H4FA42TVTD65V}

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	2026-07-04T16:12:38.078880Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

09211c70e4d5af3e1f8507353acc7eed75a1092898a4a1fbe6805d8c7a9a1494

Aliases

arxiv: cond-mat/9904350 · arxiv_version: cond-mat/9904350v1 · doi: 10.48550/arxiv.cond-mat/9904350 · pith_short_12: BEQRY4HE2WXT · pith_short_16: BEQRY4HE2WXT4H4F · pith_short_8: BEQRY4HE

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/BEQRY4HE2WXT4H4FA42TVTD65V \
  | 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: 09211c70e4d5af3e1f8507353acc7eed75a1092898a4a1fbe6805d8c7a9a1494

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0b0c3c3f9de3f57f212b93e020e11f69ca486ea6ec8f8fdf77e646d547115b25",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "cond-mat",
    "submitted_at": "1999-04-23T14:53:25Z",
    "title_canon_sha256": "dd97006a9d531866bf2984ad2e9a7530e56cfeb4fb2d4cb4eaea849792abb4c8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "cond-mat/9904350",
    "kind": "arxiv",
    "version": 1
  }
}