Pith Number

pith:YI2X3TW4

pith:2018:YI2X3TW4DT2UQLK7F3VCADOK3R

not attested not anchored not stored refs pending

f(Ricci) gravity

Chuanyi Wang, Liu Zhao

arxiv:1812.01854 v3 · 2018-12-05 · gr-qc · 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{YI2X3TW4DT2UQLK7F3VCADOK3R}

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	2026-05-17T23:58:08.333364Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c2357dcedc1cf5482d5f2eea200dcadc40d6d3e00c8f8d56db7e16f6a0839936

Aliases

arxiv: 1812.01854 · arxiv_version: 1812.01854v3 · doi: 10.48550/arxiv.1812.01854 · pith_short_12: YI2X3TW4DT2U · pith_short_16: YI2X3TW4DT2UQLK7 · pith_short_8: YI2X3TW4

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/YI2X3TW4DT2UQLK7F3VCADOK3R \
  | 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: c2357dcedc1cf5482d5f2eea200dcadc40d6d3e00c8f8d56db7e16f6a0839936

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ce3d2aa80fda9f0c89f08710ed37643dbd6151e9759caf1df2f69d1b9fd212fb",
    "cross_cats_sorted": [
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2018-12-05T08:29:05Z",
    "title_canon_sha256": "f499f1604614fcf68e856cccd102750933704fed01f93debf3f11f68fd6fbe13"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1812.01854",
    "kind": "arxiv",
    "version": 3
  }
}