Pith Number

pith:ON7PXG56

pith:2009:ON7PXG56YGRA2NWOBLNGI35ELY

not attested not anchored not stored refs pending

Null Geodesic Congruences, Asymptotically Flat Space-Times and Their Physical Interpretation

C. N. Kozameh, E. T. Newman, T. M. Adamo

arxiv:0906.2155 v3 · 2009-06-11 · 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{ON7PXG56YGRA2NWOBLNGI35ELY}

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.

Cited by

2 papers in Pith

Towards a Carrollian Description of Yang-Mills

Memory of Robinson-Trautman waves

Receipt and verification

First computed	2026-05-18T00:57:18.713049Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

737efb9bbec1a20d36ce0ada646fa45e010a3fd3564ba41c5dbaa1a016d18860

Aliases

arxiv: 0906.2155 · arxiv_version: 0906.2155v3 · doi: 10.48550/arxiv.0906.2155 · pith_short_12: ON7PXG56YGRA · pith_short_16: ON7PXG56YGRA2NWO · pith_short_8: ON7PXG56

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/ON7PXG56YGRA2NWOBLNGI35ELY \
  | 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: 737efb9bbec1a20d36ce0ada646fa45e010a3fd3564ba41c5dbaa1a016d18860

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "682309c85c7648f1485dab2d11b729ce582dc42822b5fd89f2de19932b667659",
    "cross_cats_sorted": [
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2009-06-11T16:35:23Z",
    "title_canon_sha256": "130eb4b06b6321f5283f535d7c79fa25d9bd085eff77a114535cc9bd744a6279"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0906.2155",
    "kind": "arxiv",
    "version": 3
  }
}