Pith Number

pith:TQC2UQDL

pith:2009:TQC2UQDLD7FGUA4UWUWYKBLUU2

not attested not anchored not stored refs pending

XMM-Newton and Swift observations prove GRB 090709A to be a distant, standard, long GRB

A. De Luca, A. Tiengo, D. G\"otz, G. L. Israel, G. Novara, P. Esposito, S. Mereghetti

arxiv:0911.1659 v3 · 2009-11-09 · astro-ph.HE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{TQC2UQDLD7FGUA4UWUWYKBLUU2}

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	2026-05-18T02:10:49.687959Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9c05aa406b1fca6a0394b52d850574a6944accc90fe36e13fd25fbc471f0ed50

Aliases

arxiv: 0911.1659 · arxiv_version: 0911.1659v3 · doi: 10.48550/arxiv.0911.1659 · pith_short_12: TQC2UQDLD7FG · pith_short_16: TQC2UQDLD7FGUA4U · pith_short_8: TQC2UQDL

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/TQC2UQDLD7FGUA4UWUWYKBLUU2 \
  | 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: 9c05aa406b1fca6a0394b52d850574a6944accc90fe36e13fd25fbc471f0ed50

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c416286cb3675bb37e63e31c11d727456b35dc12f445f21effa7d631e7e2d23a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2009-11-09T12:50:23Z",
    "title_canon_sha256": "220e15bfe57054ba358467d47843794d2ab7601e1241a88f8b08631260551c68"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0911.1659",
    "kind": "arxiv",
    "version": 3
  }
}