Pith Number

pith:WZ4BV3AG

pith:2016:WZ4BV3AGIM3RI6WQRYTLKUUWDI

not attested not anchored not stored refs pending

Synchronous Lagrangian variational principles in General Relativity

Claudio Cremaschini, Massimo Tessarotto

arxiv:1609.04418 v1 · 2016-09-14 · 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{WZ4BV3AGIM3RI6WQRYTLKUUWDI}

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	2026-05-18T01:04:36.814886Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b6781aec064337147ad08e26b552961a179e7704f2fc61c357565554b96a807a

Aliases

arxiv: 1609.04418 · arxiv_version: 1609.04418v1 · doi: 10.48550/arxiv.1609.04418 · pith_short_12: WZ4BV3AGIM3R · pith_short_16: WZ4BV3AGIM3RI6WQ · pith_short_8: WZ4BV3AG

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/WZ4BV3AGIM3RI6WQRYTLKUUWDI \
  | 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: b6781aec064337147ad08e26b552961a179e7704f2fc61c357565554b96a807a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "502e35205002184bbc4459e79d540ea5441075ba58feeb8699a783e7826af003",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2016-09-14T20:03:45Z",
    "title_canon_sha256": "d3f7c3fe6ac8d50c5989f207a11787b0098168d1a3fab895298dad94dd84ef9d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1609.04418",
    "kind": "arxiv",
    "version": 1
  }
}