Pith Number

pith:CVSQSOBJ

pith:2011:CVSQSOBJEBFEOGKNW3GXC4WXMU

not attested not anchored not stored refs pending

A new approach to local hardness

F. De Proft, M. Torrent-Sucarrat, P. Geerlings, T. Gal

arxiv:1104.3485 v1 · 2011-04-18 · physics.chem-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{CVSQSOBJEBFEOGKNW3GXC4WXMU}

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	2026-05-18T00:35:36.399077Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1565093829204a47194db6cd7172d7650c3a9b335b660740da59df81525dc5e1

Aliases

arxiv: 1104.3485 · arxiv_version: 1104.3485v1 · doi: 10.48550/arxiv.1104.3485 · pith_short_12: CVSQSOBJEBFE · pith_short_16: CVSQSOBJEBFEOGKN · pith_short_8: CVSQSOBJ

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/CVSQSOBJEBFEOGKNW3GXC4WXMU \
  | 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: 1565093829204a47194db6cd7172d7650c3a9b335b660740da59df81525dc5e1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6c01eea6f26b1944662902db3950226a8e13d3cde5436971679da3835d35665e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.chem-ph",
    "submitted_at": "2011-04-18T13:51:32Z",
    "title_canon_sha256": "8da71b8100f8a1101e2b8583cc890d143a85848a99750182d1a77bef060dd2e4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1104.3485",
    "kind": "arxiv",
    "version": 1
  }
}