Pith Number

pith:S4SOGWSM

pith:2021:S4SOGWSMYFVOUMNEAA7IAAFEC5

not attested not anchored not stored refs pending

Solution to the ghost problem in higher-derivative gravity

Philip D. Mannheim

arxiv:2109.12743 v1 · 2021-09-27 · hep-th

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{S4SOGWSMYFVOUMNEAA7IAAFEC5}

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	2026-07-05T03:17:36.056551Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9724e35a4cc16aea31a4003e8000a417432ddacc9eb8169fb6204071a20177ad

Aliases

arxiv: 2109.12743 · arxiv_version: 2109.12743v1 · doi: 10.48550/arxiv.2109.12743 · pith_short_12: S4SOGWSMYFVO · pith_short_16: S4SOGWSMYFVOUMNE · pith_short_8: S4SOGWSM

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/S4SOGWSMYFVOUMNEAA7IAAFEC5 \
  | 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: 9724e35a4cc16aea31a4003e8000a417432ddacc9eb8169fb6204071a20177ad

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "48470fc4de9cd8cf6ac9cc0d4010b51394bdfb0b85a8b0fe42908017c3caca9a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2021-09-27T01:03:08Z",
    "title_canon_sha256": "aa10fe0b18f912302ac8f25f891438edd7790373e12e9ae7b52c7c4291d14f74"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2109.12743",
    "kind": "arxiv",
    "version": 1
  }
}