Pith Number

pith:GHVFCOED

pith:2019:GHVFCOEDVRDUP4HHBIBSIU4WBB

not attested not anchored not stored refs pending

Horndeski in the Swampland

Alexandre Refregier, Lavinia Heisenberg, Matthias Bartelmann, Robert Brandenberger

arxiv:1902.03939 v2 · 2019-02-11 · hep-th · astro-ph.CO · gr-qc

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{GHVFCOEDVRDUP4HHBIBSIU4WBB}

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	2026-07-04T23:50:54.211331Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

31ea513883ac4747f0e70a0324539608548eba11a946d120be90b5923dbc35c4

Aliases

arxiv: 1902.03939 · arxiv_version: 1902.03939v2 · doi: 10.48550/arxiv.1902.03939 · pith_short_12: GHVFCOEDVRDU · pith_short_16: GHVFCOEDVRDUP4HH · pith_short_8: GHVFCOED

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/GHVFCOEDVRDUP4HHBIBSIU4WBB \
  | 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: 31ea513883ac4747f0e70a0324539608548eba11a946d120be90b5923dbc35c4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5db5bfaaba3ed23f9b8cfbe1cc28cd2cfd0d938a6c926b78c84d621672288af9",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2019-02-11T15:16:11Z",
    "title_canon_sha256": "2fbab00689f46e2368fd75bc787bc108f959befff1e2d83986078ac60b70dbe9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.03939",
    "kind": "arxiv",
    "version": 2
  }
}