Pith Number

pith:OFN7EXY7

pith:2009:OFN7EXY75CAOTDYZJL5EH632KQ

not attested not anchored not stored refs pending

Non variability of intervening absorbers observed in the UVES spectra of the "naked-eye" GRB080319

E.J.A. Meurs, F. Fiore, G. Tagliaferri, L. Norci, P. D'Avanzo, P. Goldoni, S. Campana, S. Covino, V. D'Elia, V. D'Odorico

arxiv:0906.3191 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{OFN7EXY75CAOTDYZJL5EH632KQ}

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	2026-05-18T02:13:19.399765Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

715bf25f1fe880e98f194afa43fb7a543a089b9ece53063adfa6ccb505603ea5

Aliases

arxiv: 0906.3191 · arxiv_version: 0906.3191v1 · doi: 10.48550/arxiv.0906.3191 · pith_short_12: OFN7EXY75CAO · pith_short_16: OFN7EXY75CAOTDYZ · pith_short_8: OFN7EXY7

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/OFN7EXY75CAOTDYZJL5EH632KQ \
  | 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: 715bf25f1fe880e98f194afa43fb7a543a089b9ece53063adfa6ccb505603ea5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0b3ace250d00933b2eaef522deceb4ffb4cc3710128307ba5eb4e7593aa17b35",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-06-17T14:26:42Z",
    "title_canon_sha256": "b31c5e079d0b94f00f0ea340bbb5e532ff92f27df985c85dd3b26cdb667fb346"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0906.3191",
    "kind": "arxiv",
    "version": 1
  }
}