Pith Number

pith:VSHDZUIV

pith:2017:VSHDZUIVSY6RXWOIXRZ53AQEMO

not attested not anchored not stored refs pending

Ghostbusters in $f(R)$ supergravity

Keisuke Ohashi, Muneto Nitta, Toshiaki Fujimori, Yusuke Yamada

arxiv:1712.05017 v2 · 2017-12-13 · hep-th · 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{VSHDZUIVSY6RXWOIXRZ53AQEMO}

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	2026-05-18T00:13:30.972304Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ac8e3cd115963d1bd9c8bc73dd820463b24e1f14596f876482d7eb9e80749dd5

Aliases

arxiv: 1712.05017 · arxiv_version: 1712.05017v2 · doi: 10.48550/arxiv.1712.05017 · pith_short_12: VSHDZUIVSY6R · pith_short_16: VSHDZUIVSY6RXWOI · pith_short_8: VSHDZUIV

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/VSHDZUIVSY6RXWOIXRZ53AQEMO \
  | 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: ac8e3cd115963d1bd9c8bc73dd820463b24e1f14596f876482d7eb9e80749dd5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bd8c75c871e706ecb260e5442fce8be247cbe3bccec90067dffe9728e1c7ad4b",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2017-12-13T21:43:24Z",
    "title_canon_sha256": "00c81f948b4493047b671fb8132801f05c4d9f185bcd82d847721fc31fb1d3da"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1712.05017",
    "kind": "arxiv",
    "version": 2
  }
}