Pith Number

pith:FSA4HFXY

pith:1996:FSA4HFXYCVOBMGCMYHTBGDQLOG

not attested not anchored not stored refs pending

Hubble Space Telescope Planetary Camera Images of NGC 1316

Carl J. Grillmair, C. Roger Lynds, Daniel M. Dowling, Douglas G. Currie, & Earl J. O'Neil, Edward A. Ajhar, Edward J. Groth, Edward J. Shaya, jr, S.M. Faber, Tod R. Lauer

arxiv:astro-ph/9603056 v1 · 1996-03-13 · 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{FSA4HFXYCVOBMGCMYHTBGDQLOG}

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	2026-05-18T03:47:42.826391Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2c81c396f8155c16184cc1e6130e0b71a8cae079751f96dc11c1c263b2ebeac1

Aliases

arxiv: astro-ph/9603056 · arxiv_version: astro-ph/9603056v1 · doi: 10.48550/arxiv.astro-ph/9603056 · pith_short_12: FSA4HFXYCVOB · pith_short_16: FSA4HFXYCVOBMGCM · pith_short_8: FSA4HFXY

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/FSA4HFXYCVOBMGCMYHTBGDQLOG \
  | 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: 2c81c396f8155c16184cc1e6130e0b71a8cae079751f96dc11c1c263b2ebeac1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "43ee7bc238e0721dfc67901f97dd56b9797097dd0a8496714a66848dbb54fe6c",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1996-03-13T20:00:39Z",
    "title_canon_sha256": "daef733bbb67abf5bde652e0fc3b292af6aa7be3573cfc13db24f24565948749"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9603056",
    "kind": "arxiv",
    "version": 1
  }
}