Pith Number

pith:S3GHR4P5

pith:2016:S3GHR4P5K5D3HWG7VRLDWDMWFJ

not attested not anchored not stored refs pending

Nonlinear Gravitational Lagrangians revisited

Guido Magnano

arxiv:1601.02235 v1 · 2016-01-10 · 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{S3GHR4P5K5D3HWG7VRLDWDMWFJ}

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	2026-05-18T01:04:21.720280Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

96cc78f1fd5747b3d8dfac563b0d962a5be1482606afbe683d3e3c20a0038fda

Aliases

arxiv: 1601.02235 · arxiv_version: 1601.02235v1 · doi: 10.48550/arxiv.1601.02235 · pith_short_12: S3GHR4P5K5D3 · pith_short_16: S3GHR4P5K5D3HWG7 · pith_short_8: S3GHR4P5

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/S3GHR4P5K5D3HWG7VRLDWDMWFJ \
  | 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: 96cc78f1fd5747b3d8dfac563b0d962a5be1482606afbe683d3e3c20a0038fda

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "493bf2deda9d4d892624ac0b563dc233627e53814622ee806edcb6aefaa78cf4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2016-01-10T17:16:54Z",
    "title_canon_sha256": "3e5a7eb198bd1a7979381b9a9d5b6380839b50115225238a09c6ec8f65fd1ba4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1601.02235",
    "kind": "arxiv",
    "version": 1
  }
}