Pith Number

pith:QGU3FDQR

pith:2008:QGU3FDQR3DZQGULS6QB6TPKZGR

not attested not anchored not stored refs pending

The properties of the host galaxy and the immediate environment of GRB 980425 / SN 1998bw from the multi-wavelength spectral energy distribution

Daniele Malesani, Darach J. Watson, Jens Hjorth, Johan P. U. Fynbo, Jos\'e Mar\'ia Castro Cer\'on, Michael A. Garrett, Micha{\l} J. Micha{\l}owski, Robert F. Reinfrank, Tadeusz Micha{\l}owski, Uffe G. J{\o}rgensen

arxiv:0809.0508 v2 · 2008-09-02 · 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{QGU3FDQR3DZQGULS6QB6TPKZGR}

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	2026-05-18T04:29:32.911475Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

81a9b28e11d8f3035172f403e9bd59344833b95198ab47a463ca14db17079e11

Aliases

arxiv: 0809.0508 · arxiv_version: 0809.0508v2 · doi: 10.48550/arxiv.0809.0508 · pith_short_12: QGU3FDQR3DZQ · pith_short_16: QGU3FDQR3DZQGULS · pith_short_8: QGU3FDQR

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/QGU3FDQR3DZQGULS6QB6TPKZGR \
  | 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: 81a9b28e11d8f3035172f403e9bd59344833b95198ab47a463ca14db17079e11

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "db47d3ef1229f6a4379e276050065dd685b898509b921fd68ac1a83a04281e40",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph",
    "submitted_at": "2008-09-02T20:00:35Z",
    "title_canon_sha256": "9e1e5d640d780489e0aad0096bcc46a31ab819710d052d443c1b4b24ad10137c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0809.0508",
    "kind": "arxiv",
    "version": 2
  }
}