Pith Number

pith:DTKN3OWS

pith:2015:DTKN3OWSWTAMOKDALOUPFWD4BS

not attested not anchored not stored refs pending

Pair densities in density functional theory

Gero Friesecke, Huajie Chen

arxiv:1503.07539 v2 · 2015-03-25 · physics.chem-ph · math-ph · math.MP · math.NA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DTKN3OWSWTAMOKDALOUPFWD4BS}

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	2026-05-18T01:35:43.449889Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1cd4ddbad2b4c0c728605ba8f2d87c0c873b04600e2f10e7e0aa5a6316e84b57

Aliases

arxiv: 1503.07539 · arxiv_version: 1503.07539v2 · doi: 10.48550/arxiv.1503.07539 · pith_short_12: DTKN3OWSWTAM · pith_short_16: DTKN3OWSWTAMOKDA · pith_short_8: DTKN3OWS

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/DTKN3OWSWTAMOKDALOUPFWD4BS \
  | 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: 1cd4ddbad2b4c0c728605ba8f2d87c0c873b04600e2f10e7e0aa5a6316e84b57

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e3d7234e14d0e97c3689a9069ceb11337625ce961543c4e079fbe0dfcbdb98ab",
    "cross_cats_sorted": [
      "math-ph",
      "math.MP",
      "math.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.chem-ph",
    "submitted_at": "2015-03-25T20:10:40Z",
    "title_canon_sha256": "38685661cce2f81a64ea271d90f6cedb5b99224db17cc3226224a77cf402ac7d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1503.07539",
    "kind": "arxiv",
    "version": 2
  }
}