Pith Number

pith:VZIRE3UT

pith:1993:VZIRE3UTIGOYF7FSMNPBG7GMSI

not attested not anchored not stored refs pending

The Galactic Center radio jet

Heino Falcke, Karl Mannheim, Peter L. Biermann

arxiv:astro-ph/9308031 v1 · 1993-08-24 · 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{VZIRE3UTIGOYF7FSMNPBG7GMSI}

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	2026-05-18T04:21:41.313831Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ae51126e93419d82fcb2635e137ccc922109a025e2e660079a949bb386504f3f

Aliases

arxiv: astro-ph/9308031 · arxiv_version: astro-ph/9308031v1 · doi: 10.48550/arxiv.astro-ph/9308031 · pith_short_12: VZIRE3UTIGOY · pith_short_16: VZIRE3UTIGOYF7FS · pith_short_8: VZIRE3UT

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/VZIRE3UTIGOYF7FSMNPBG7GMSI \
  | 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: ae51126e93419d82fcb2635e137ccc922109a025e2e660079a949bb386504f3f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4b54c9a457df992ace38fcd7dbb7c15deac117f8427fee5ce8b66578d45060ad",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1993-08-24T10:40:02Z",
    "title_canon_sha256": "c3f4afa2f4cae97a1276761e3341e4f8cdbc92d36994787875ef826e6f9a264b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9308031",
    "kind": "arxiv",
    "version": 1
  }
}