Pith Number

pith:TYU3V4IO

pith:2011:TYU3V4IOYOX36CRWS4X4Y2BRUD

not attested not anchored not stored refs pending

Early radio and X-ray observations of the youngest nearby type Ia supernova PTF11kly (SN 2011fe)

A. G. de Bruyn, Alexander J. van der Horst, Assaf Horesh, Atish Kamble, Avishay Gal-Yam, Chryssa Kouveliotou, D. Andrew Howell, Derek B. Fox, Dovi Poznanski, Eran O. Ofek, John Carpenter, Kate Maguire, Mansi M. Kasliwal, Mark Sullivan, Michael Shara, Neil Gehrels, Nicholas M. Law, Peter E. Nugent, Philipp Podsiadlowski, Ralph A. M. J. Wijers, Robert Quimby, S. Bradley Cenko, S. R. Kulkarni

arxiv:1109.2912 v2 · 2011-09-13 · astro-ph.CO · astro-ph.HE · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{TYU3V4IOYOX36CRWS4X4Y2BRUD}

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	2026-05-18T02:00:33.351915Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9e29baf10ec3afbf0a36972fcc6831a0ee58b7b812a6c6a2517e9127ceaa8046

Aliases

arxiv: 1109.2912 · arxiv_version: 1109.2912v2 · doi: 10.48550/arxiv.1109.2912 · pith_short_12: TYU3V4IOYOX3 · pith_short_16: TYU3V4IOYOX36CRW · pith_short_8: TYU3V4IO

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/TYU3V4IOYOX36CRWS4X4Y2BRUD \
  | 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: 9e29baf10ec3afbf0a36972fcc6831a0ee58b7b812a6c6a2517e9127ceaa8046

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "759f5405648de24f52023717a47446131c341cc272ea02874d48dc9577f968bd",
    "cross_cats_sorted": [
      "astro-ph.HE",
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2011-09-13T20:14:15Z",
    "title_canon_sha256": "95db031180c0aff8b2e1db3b25cf144a0e9eece6a54e39c1a57709f5a901c3de"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1109.2912",
    "kind": "arxiv",
    "version": 2
  }
}