Pith Number

pith:PU3MRRE6

pith:2009:PU3MRRE6JUCS77NLZFY6KPYZN2

not attested not anchored not stored refs pending

UVES/VLT high resolution absorption spectroscopy of the GRB080330 afterglow: a study of the GRB host galaxy and intervening absorbers

C. Guidorzi, D. Fugazza, E.J.A. Meurs, F. Fiore, G. Tagliaferri, L. Norci, P. D'Avanzo, P. Goldoni, P. Ward, R. Perna, S. Campana, S. Covino, S.D. Vergani, S. Piranomonte, V. D'Elia, Y. Krongold

arxiv:0906.3187 v1 · 2009-06-17 · astro-ph.CO · 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{PU3MRRE6JUCS77NLZFY6KPYZN2}

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	2026-05-18T02:13:19.423307Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7d36c8c49e4d052ffdabc971e53f196e9d3e18e37b9dfb8cedc1770af7f085ba

Aliases

arxiv: 0906.3187 · arxiv_version: 0906.3187v1 · doi: 10.48550/arxiv.0906.3187 · pith_short_12: PU3MRRE6JUCS · pith_short_16: PU3MRRE6JUCS77NL · pith_short_8: PU3MRRE6

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/PU3MRRE6JUCS77NLZFY6KPYZN2 \
  | 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: 7d36c8c49e4d052ffdabc971e53f196e9d3e18e37b9dfb8cedc1770af7f085ba

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bfde0b7b941a5c11648a25ea65111a96922bb5c332a72fb029aad9f501f534a6",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-06-17T14:11:22Z",
    "title_canon_sha256": "457bee6fcaa32811c171a57fbc522e679858605abc69f96bce6adfccd60ad351"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0906.3187",
    "kind": "arxiv",
    "version": 1
  }
}