Pith Number

pith:7ZGZAYKU

pith:2014:7ZGZAYKUMAJTPEISFCWIJQHATY

not attested not anchored not stored refs pending

Cauchy problem as a two-surface based `geometrodynamics'

Istv\'an R\'acz

arxiv:1409.4914 v3 · 2014-09-17 · gr-qc · math-ph · math.MP

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7ZGZAYKUMAJTPEISFCWIJQHATY}

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	2026-05-18T02:31:59.342757Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fe4d906154601337911228ac84c0e09e01a25c2f3c50d052e46ab651f624e019

Aliases

arxiv: 1409.4914 · arxiv_version: 1409.4914v3 · doi: 10.48550/arxiv.1409.4914 · pith_short_12: 7ZGZAYKUMAJT · pith_short_16: 7ZGZAYKUMAJTPEIS · pith_short_8: 7ZGZAYKU

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/7ZGZAYKUMAJTPEISFCWIJQHATY \
  | 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: fe4d906154601337911228ac84c0e09e01a25c2f3c50d052e46ab651f624e019

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fbc3dd1486a9b652800021abcdfbb6d5d40d20a5d2eb38d2ee3d956313cf503d",
    "cross_cats_sorted": [
      "math-ph",
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2014-09-17T09:30:25Z",
    "title_canon_sha256": "8d652b21523bc99e6c2ef06d3548fa29544aebe81b68621c6e06cd545ccef543"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1409.4914",
    "kind": "arxiv",
    "version": 3
  }
}