Pith Number

pith:7ZN3RU4Y

pith:2008:7ZN3RU4YGDJAR756GWMWRQ43W3

not attested not anchored not stored refs pending

Geometric structures of the classical general relativistic phase space

Josef Jany\v{s}ka, Marco Modugno

arxiv:0801.1735 v1 · 2008-01-11 · math-ph · 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{7ZN3RU4YGDJAR756GWMWRQ43W3}

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	2026-05-18T02:16:02.036593Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fe5bb8d39830d208ffbe359968c39bb6f1d4da460d8f8dfde72750454699c099

Aliases

arxiv: 0801.1735 · arxiv_version: 0801.1735v1 · doi: 10.48550/arxiv.0801.1735 · pith_short_12: 7ZN3RU4YGDJA · pith_short_16: 7ZN3RU4YGDJAR756 · pith_short_8: 7ZN3RU4Y

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/7ZN3RU4YGDJAR756GWMWRQ43W3 \
  | 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: fe5bb8d39830d208ffbe359968c39bb6f1d4da460d8f8dfde72750454699c099

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "58ebf8462437daec9f757dd553a3bb4f713d15eaecc1daf601e8acc3cedd5490",
    "cross_cats_sorted": [
      "math.DG",
      "math.MP"
    ],
    "license": "",
    "primary_cat": "math-ph",
    "submitted_at": "2008-01-11T08:51:10Z",
    "title_canon_sha256": "01a670fca823aab30f2ebc0387d2c28c97939aa2a86efc8a93b20ddaee7916b9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0801.1735",
    "kind": "arxiv",
    "version": 1
  }
}