Pith Number

pith:PYUZ5LUQ

pith:2013:PYUZ5LUQJHOUJC6UQAUC6IL55O

not attested not anchored not stored refs pending

On the space of light rays of a space-time and a reconstruction theorem by Low

A. Bautista, A. Ibort, J. Lafuente

arxiv:1309.7774 v1 · 2013-09-30 · math-ph · gr-qc · math.DG · 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{PYUZ5LUQJHOUJC6UQAUC6IL55O}

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	2026-05-18T01:47:24.592931Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7e299eae9049dd448bd480282f217debbf040e2f1c81e3013c2a3e5ec2844400

Aliases

arxiv: 1309.7774 · arxiv_version: 1309.7774v1 · doi: 10.48550/arxiv.1309.7774 · pith_short_12: PYUZ5LUQJHOU · pith_short_16: PYUZ5LUQJHOUJC6U · pith_short_8: PYUZ5LUQ

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/PYUZ5LUQJHOUJC6UQAUC6IL55O \
  | 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: 7e299eae9049dd448bd480282f217debbf040e2f1c81e3013c2a3e5ec2844400

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e4eae6eeb13ecb54f656c74f59807dd7df359741cdd866cce98277de4b58b598",
    "cross_cats_sorted": [
      "gr-qc",
      "math.DG",
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math-ph",
    "submitted_at": "2013-09-30T09:40:51Z",
    "title_canon_sha256": "edf1b7814714938858dbb78c6045b72f6153cb21ec93ef15df88d059ecc45978"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1309.7774",
    "kind": "arxiv",
    "version": 1
  }
}