Pith Number

pith:QD22U4BC

pith:2009:QD22U4BCR3BGAQBTTJV3WIPUCU

not attested not anchored not stored refs pending

Ultraviolet Spectroscopy of Supernovae: The First Two Years of Swift Observations

A.A. Breeveld, E. Cappellaro, E. Pian, F. Bufano (1), L. Zampieri, M. Turatto, NASA/GSFC), N. Gehrels ((1) INAF-OAPD, N. Panagia, P. Brown, P. Mazzali, P. Milne, P. Roming, S. Benetti, S. Immler, S. T. Holland, W. Landsman

arxiv:0906.0367 v1 · 2009-06-01 · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QD22U4BCR3BGAQBTTJV3WIPUCU}

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	2026-07-04T15:46:30.824626Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

80f5aa70228ec26040339a6bbb21f41535cf1fa4449df7966bc80e66feec254e

Aliases

arxiv: 0906.0367 · arxiv_version: 0906.0367v1 · doi: 10.48550/arxiv.0906.0367 · pith_short_12: QD22U4BCR3BG · pith_short_16: QD22U4BCR3BGAQBT · pith_short_8: QD22U4BC

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/QD22U4BCR3BGAQBTTJV3WIPUCU \
  | 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: 80f5aa70228ec26040339a6bbb21f41535cf1fa4449df7966bc80e66feec254e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "923c3d26fd461e3f54b9ad72bfc9d9c882af42b1624bea11aab264a32aa58277",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-06-01T20:00:44Z",
    "title_canon_sha256": "f91334d57d0c5f2eef3c3fd1ab3fa3f31df0b4f8f8bd801ae6caf448594b8e56"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0906.0367",
    "kind": "arxiv",
    "version": 1
  }
}