Pith Number

pith:LO44UAPM

pith:1999:LO44UAPMHCAY2S2PMXL4QDHGJF

not attested not anchored not stored refs pending

Floating bonds and gap states in a-Si and a-Si:H from first principles calculations

A. Baldereschi, M. Fornari, M. Peressi, S. de Gironcoli

arxiv:cond-mat/9906223 v1 · 1999-06-15 · cond-mat.mtrl-sci

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{LO44UAPMHCAY2S2PMXL4QDHGJF}

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	2026-05-18T03:49:58.884138Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5bb9ca01ec38818d4b4f65d7c80ce6494e97b955e4cc14eb9c0b3e8e58beba56

Aliases

arxiv: cond-mat/9906223 · arxiv_version: cond-mat/9906223v1 · doi: 10.48550/arxiv.cond-mat/9906223 · pith_short_12: LO44UAPMHCAY · pith_short_16: LO44UAPMHCAY2S2P · pith_short_8: LO44UAPM

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/LO44UAPMHCAY2S2PMXL4QDHGJF \
  | 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: 5bb9ca01ec38818d4b4f65d7c80ce6494e97b955e4cc14eb9c0b3e8e58beba56

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c9d26a1441adda00c4724be1229c86b1a9faaad31185c0a7ec7bbfd7d13e9bab",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "cond-mat.mtrl-sci",
    "submitted_at": "1999-06-15T15:51:57Z",
    "title_canon_sha256": "81982357eb533eccae0fc07ad7195ad6d5674a719cdedef3ebe89fefa92582ef"
  },
  "schema_version": "1.0",
  "source": {
    "id": "cond-mat/9906223",
    "kind": "arxiv",
    "version": 1
  }
}