Pith Number

pith:I4NYMFZM

pith:2010:I4NYMFZMSFW7VWYQT4XFCH2TJV

not attested not anchored not stored refs pending

PTF10fqs: A Luminous Red Nova in the Spiral Galaxy Messier 99

Adam Miller, Alexei V. Filippenko, Avishay Gal-Yam, Cullen Blake, Dale A. Frail, Dan McKenna, Dan Starr, David Hale, D. Christopher Martin, Derek B. Fox, Dovi Poznanski, Eran O. Ofek, George Helou, Gustavo Rahmer, Iair Arcavi, Io Kleiser, Jacob L. Howell, James D. Neill, Jamie Kennea, Janet Jacobsen, Jeff Zolkower, John Henning, Joshua S. Bloom, Kahnh Bui, Karl Forster, Mansi M. Kasliwal, Mark Sullivan, Neil Gehrels, Nicholas M. Law, Ofer Yaron, Peter Nugent, Richard Dekany, Richard Walters, Robert M. Quimby, Roger Smith, S. Bradley Cenko, Shriharsh P. Tendulkar, S. R. Kulkarni, Viswa Velur, Weidong Li, Yoav Green

arxiv:1005.1455 v2 · 2010-05-10 · astro-ph.SR · 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{I4NYMFZMSFW7VWYQT4XFCH2TJV}

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	2026-05-18T02:07:35.007760Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

471b86172c916dfadb109f2e511f534d4b0c66fddc5d73387e063b365021d34f

Aliases

arxiv: 1005.1455 · arxiv_version: 1005.1455v2 · doi: 10.48550/arxiv.1005.1455 · pith_short_12: I4NYMFZMSFW7 · pith_short_16: I4NYMFZMSFW7VWYQ · pith_short_8: I4NYMFZM

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/I4NYMFZMSFW7VWYQT4XFCH2TJV \
  | 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: 471b86172c916dfadb109f2e511f534d4b0c66fddc5d73387e063b365021d34f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6b568b90660d928bcda60e5629fe6afff9ecbeafa488bd17efa246beacc733f0",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2010-05-10T06:15:39Z",
    "title_canon_sha256": "bb261e490bad78a317f6a156ee78e678344af44ebe3595b779aea7c6fc32317d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1005.1455",
    "kind": "arxiv",
    "version": 2
  }
}