Pith Number

pith:4IAXSAX4

pith:2014:4IAXSAX4SSMFYDZJNX3EIOLFDL

not attested not anchored not stored refs pending

A mathematical perspective on density functional perturbation theory

Cermics), Eric Canc\`es (MATHERIALS, Nahia Mourad (CERMICS)

arxiv:1405.1348 v2 · 2014-05-06 · math-ph · math.MP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4IAXSAX4SSMFYDZJNX3EIOLFDL}

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	2026-05-18T00:47:29.791020Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e2017902fc94985c0f296df64439651add459460d1a80e18e3a19210cceccd8b

Aliases

arxiv: 1405.1348 · arxiv_version: 1405.1348v2 · doi: 10.48550/arxiv.1405.1348 · pith_short_12: 4IAXSAX4SSMF · pith_short_16: 4IAXSAX4SSMFYDZJ · pith_short_8: 4IAXSAX4

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/4IAXSAX4SSMFYDZJNX3EIOLFDL \
  | 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: e2017902fc94985c0f296df64439651add459460d1a80e18e3a19210cceccd8b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3f7dd5f9754ea2a99aa0d481a5541674537c11ac54fb6248ff9a4b96b6db157f",
    "cross_cats_sorted": [
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math-ph",
    "submitted_at": "2014-05-06T16:29:48Z",
    "title_canon_sha256": "f93ce024419a9b1d1ef011462c5b34d373bbf6307ae66f1fc93082fcc0159c99"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1405.1348",
    "kind": "arxiv",
    "version": 2
  }
}