Pith Number

pith:DW2V6IHE

pith:2002:DW2V6IHEMDHMRL6XAQ76OSEYN7

not attested not anchored not stored refs pending

GRB 010921: Strong Limits on an Underlying Supernova from HST

A. A. Henden, B. P. Schmidt, D. A. Frail, D. E. Reichart, D. W. Fox, E. Berger, E. Costa, F. A. Harrison, F. Frontera, G. R. Ricker, J. C. Wheeler, J. Holtzman, J. P. Halpern, J. S. Bloom, K. Hurley, L. Piro, P. A. Price, P. McCarthy, R. A. Chevalier, R. A. Kimble, R. Sari, S. A. Yost, S. G. Djorgovski, S. Klose, S. R. Kulkarni, T. J. Galama, T. S. Axelrod

arxiv:astro-ph/0207187 v1 · 2002-07-09 · 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{DW2V6IHEMDHMRL6XAQ76OSEYN7}

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	2026-07-04T17:28:33.421455Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1db55f20e460cec8afd7043fe748986fc3303173340d228a3b095397c0f386b0

Aliases

arxiv: astro-ph/0207187 · arxiv_version: astro-ph/0207187v1 · doi: 10.48550/arxiv.astro-ph/0207187 · pith_short_12: DW2V6IHEMDHM · pith_short_16: DW2V6IHEMDHMRL6X · pith_short_8: DW2V6IHE

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/DW2V6IHEMDHMRL6XAQ76OSEYN7 \
  | 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: 1db55f20e460cec8afd7043fe748986fc3303173340d228a3b095397c0f386b0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3173ec0ea09e7e075f6ce95a0ed8cae902f56017301f06c2a52704795ec56da5",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2002-07-09T06:17:03Z",
    "title_canon_sha256": "36f163ed066d6890af5b414021af3c4bf77169235ceaaab6f8888c23ad444f25"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0207187",
    "kind": "arxiv",
    "version": 1
  }
}