Pith Number

pith:FIJKLPBY

pith:2013:FIJKLPBYGTQ3PBZCPCYIQSMBAP

not attested not anchored not stored refs pending

The metallicity and dust content of a redshift 5 gamma-ray burst host galaxy

A. de Ugarte Postigo, A. J. Levan, B. Milvang-Jensen, D. J. Watson, D. Malesani, H. Flores, J. Greiner, J. Hjorth, J. P. U. Fynbo, J. Sollerman, K. Wiersema, L. Kaper, M. Nardini, M. Sparre, N. R. Tanvir, O. E. Hartoog, P. Goldoni, P. Jakobsson, P. M. J. Afonso, R. A. M. J. Wijers, R. S\'anchez-Ram\'irez, S. Covino, S. D. Vergani, S. Klose, S. Piranomonte, S. Schulze, T. Kr\"uhler, T. Zafar, V. D'Elia

arxiv:1309.2940 v3 · 2013-09-11 · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FIJKLPBYGTQ3PBZCPCYIQSMBAP}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T02:54:46.861607Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2a12a5bc3834e1b7872278b088498103e607322fa5347a786a098976e392206b

Aliases

arxiv: 1309.2940 · arxiv_version: 1309.2940v3 · doi: 10.48550/arxiv.1309.2940 · pith_short_12: FIJKLPBYGTQ3 · pith_short_16: FIJKLPBYGTQ3PBZC · pith_short_8: FIJKLPBY

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/FIJKLPBYGTQ3PBZCPCYIQSMBAP \
  | 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: 2a12a5bc3834e1b7872278b088498103e607322fa5347a786a098976e392206b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "95fc50d8bd1196ae7151eb34f10f1c8bcdecfdf0b3f0fa940224c03fb5570155",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2013-09-11T20:00:00Z",
    "title_canon_sha256": "9866b5500ec64c25dd0e9b7f9bc307bb7848e03c061b9998fcb621ed809a0ace"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1309.2940",
    "kind": "arxiv",
    "version": 3
  }
}