Pith Number

pith:AZD2H7LE

pith:2010:AZD2H7LEAAU2XWKWSDZZAL7XJK

not attested not anchored not stored refs pending

The rest-frame ultraviolet spectra of GRBs from massive rapidly-rotating stellar progenitors

Allard J. van Marle (Leuven Science center), Davide Lazzati (NCSU), Peter B. Robinson (Colorado), Rosalba Perna (Colorado/JILA)

arxiv:1003.3840 v1 · 2010-03-19 · 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{AZD2H7LEAAU2XWKWSDZZAL7XJK}

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	2026-05-18T02:08:25.214008Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0647a3fd640029abd95690f3902ff74aab2c82607763a730050def61e7bd70ea

Aliases

arxiv: 1003.3840 · arxiv_version: 1003.3840v1 · doi: 10.48550/arxiv.1003.3840 · pith_short_12: AZD2H7LEAAU2 · pith_short_16: AZD2H7LEAAU2XWKW · pith_short_8: AZD2H7LE

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/AZD2H7LEAAU2XWKWSDZZAL7XJK \
  | 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: 0647a3fd640029abd95690f3902ff74aab2c82607763a730050def61e7bd70ea

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d28855558e0c854771a7431b421cfadf1797580205ed56fece42ed7f170009e3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2010-03-19T16:55:15Z",
    "title_canon_sha256": "4b6e170e0175df9ccf98b5d8697f93c94a849efd266b28cbdf56b38f0fa6a984"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1003.3840",
    "kind": "arxiv",
    "version": 1
  }
}