Pith Number

pith:QRGCIF6W

pith:2013:QRGCIF6WYRS4CCO2LHMCOTOUQI

not attested not anchored not stored refs pending

A discontinuous functional for linear response time-dependent density functional theory: the exact-exchange kernel and approximate forms

E. K. U. Gross, M. Hellgren

arxiv:1309.0783 v1 · 2013-09-03 · physics.chem-ph · cond-mat.mtrl-sci

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

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	2026-05-18T01:47:50.259830Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

844c2417d6c465c109da59d8274dd482166607a1bd16fa6bab252c3eb0abea92

Aliases

arxiv: 1309.0783 · arxiv_version: 1309.0783v1 · doi: 10.48550/arxiv.1309.0783 · pith_short_12: QRGCIF6WYRS4 · pith_short_16: QRGCIF6WYRS4CCO2 · pith_short_8: QRGCIF6W

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/QRGCIF6WYRS4CCO2LHMCOTOUQI \
  | 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: 844c2417d6c465c109da59d8274dd482166607a1bd16fa6bab252c3eb0abea92

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e43e16499327dacd9c4f69bfe727c25c8bc2445473fe3d41bc546df09c0aa087",
    "cross_cats_sorted": [
      "cond-mat.mtrl-sci"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.chem-ph",
    "submitted_at": "2013-09-03T19:22:46Z",
    "title_canon_sha256": "9e16171354c82ab8f29417d7d51ca45e2c55055124f2508221963e72dc9f7b38"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1309.0783",
    "kind": "arxiv",
    "version": 1
  }
}