Pith Number

pith:YS2G4QFG

pith:2000:YS2G4QFGHCZF6CYOJ43EPERZ4Q

not attested not anchored not stored refs pending

Stewart-Lyth Inverse Problem

(2) Depto. Fisica Teor., Alberto Garc\'ia (1), C\'esar A. Terrero-Escalante (1) ((1) Depto. Fisica, CINVESTAV-IPN, Eloy Ay\'on-Beato (1), IF-UNAM, Mexico, Mexico), Ricardo Mansilla (2)

arxiv:astro-ph/0007477 v3 · 2000-07-31 · astro-ph · gr-qc · hep-th · math.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{YS2G4QFGHCZF6CYOJ43EPERZ4Q}

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	2026-05-18T01:09:11.004892Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c4b46e40a638b25f0b0e4f36479239e424cb4652ce1976da04aadd2f11a5eb70

Aliases

arxiv: astro-ph/0007477 · arxiv_version: astro-ph/0007477v3 · doi: 10.48550/arxiv.astro-ph/0007477 · pith_short_12: YS2G4QFGHCZF · pith_short_16: YS2G4QFGHCZF6CYO · pith_short_8: YS2G4QFG

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/YS2G4QFGHCZF6CYOJ43EPERZ4Q \
  | 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: c4b46e40a638b25f0b0e4f36479239e424cb4652ce1976da04aadd2f11a5eb70

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "11d4c85cc89548deb1c48d1a89c18b9bbda7c73f66548bb43fca40795b2c9769",
    "cross_cats_sorted": [
      "gr-qc",
      "hep-th",
      "math.DS"
    ],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2000-07-31T21:50:23Z",
    "title_canon_sha256": "5cc42bf95cda1fa4d7a74f8dc11aff80bb9d06a5fd7589acbcba8e6b4d9921a5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0007477",
    "kind": "arxiv",
    "version": 3
  }
}