Pith Number

pith:4CFI2QZ2

pith:2004:4CFI2QZ2Z3KONRDGT6YBDHDQT2

not attested not anchored not stored refs pending

Mass and Angular Momentum of Sgr A*

B. Aschenbach

arxiv:astro-ph/0410328 v1 · 2004-10-13 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4CFI2QZ2Z3KONRDGT6YBDHDQT2}

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	2026-07-04T16:44:57.813933Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e08a8d433aced4e6c4669fb0119c709ebf824775cd2bbbbdad06629ebc505182

Aliases

arxiv: astro-ph/0410328 · arxiv_version: astro-ph/0410328v1 · doi: 10.48550/arxiv.astro-ph/0410328 · pith_short_12: 4CFI2QZ2Z3KO · pith_short_16: 4CFI2QZ2Z3KONRDG · pith_short_8: 4CFI2QZ2

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/4CFI2QZ2Z3KONRDGT6YBDHDQT2 \
  | 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: e08a8d433aced4e6c4669fb0119c709ebf824775cd2bbbbdad06629ebc505182

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f1ab57f4f9ad316309cb4fbd07aadf03368c58ab3f5d91b63c9a1040c0c593dd",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2004-10-13T10:27:00Z",
    "title_canon_sha256": "afd80f4d2ef083d38676a235485ab495e5cd1bdb36beb5bdcb1c871cadef16cb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0410328",
    "kind": "arxiv",
    "version": 1
  }
}