Pith Number

pith:J3MGGLVJ

pith:2017:J3MGGLVJ6YPXAEW7TYDLCIUWTY

not attested not anchored not stored refs pending

Quadratic gravity in first order formalism

Enrique Alvarez, Jesus Anero, Sergio Gonzalez-Martin

arxiv:1703.07993 v5 · 2017-03-23 · 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{J3MGGLVJ6YPXAEW7TYDLCIUWTY}

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	2026-05-18T00:27:30.504913Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4ed8632ea9f61f7012df9e06b122969e1cc1aacf32deacc4c4426cf1ffe6da13

Aliases

arxiv: 1703.07993 · arxiv_version: 1703.07993v5 · doi: 10.48550/arxiv.1703.07993 · pith_short_12: J3MGGLVJ6YPX · pith_short_16: J3MGGLVJ6YPXAEW7 · pith_short_8: J3MGGLVJ

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/J3MGGLVJ6YPXAEW7TYDLCIUWTY \
  | 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: 4ed8632ea9f61f7012df9e06b122969e1cc1aacf32deacc4c4426cf1ffe6da13

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fca3a917ab32ce0ea0624d15e4e1220dcb1aa9d876ffd48f63e3f694a02052d9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2017-03-23T10:41:02Z",
    "title_canon_sha256": "a8be08fa8bb1064e903702a33a0a103c162bcc4d6a2c108ee03b03b05ac268ec"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1703.07993",
    "kind": "arxiv",
    "version": 5
  }
}