Pith Number

pith:7TN456UI

pith:2012:7TN456UI6NPCLH2NKIBVTCTOXC

not attested not anchored not stored refs pending

PSR J1311-3430: A Heavyweight Neutron Star with a Flyweight Helium Companion

Alexei V. Filippenko, Arne Rau, Holger J. Pletsch, Jeffery M. Silverman, Jochen Greiner, Jonathan Elliott, Roger W. Romani, S. Bradley Cenko

arxiv:1210.6884 v1 · 2012-10-25 · 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{7TN456UI6NPCLH2NKIBVTCTOXC}

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	2026-05-18T01:53:37.620581Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fcdbcefa88f35e259f4d5203598a6eb898b01bdaf84effb857835473f78a29b6

Aliases

arxiv: 1210.6884 · arxiv_version: 1210.6884v1 · doi: 10.48550/arxiv.1210.6884 · pith_short_12: 7TN456UI6NPC · pith_short_16: 7TN456UI6NPCLH2N · pith_short_8: 7TN456UI

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/7TN456UI6NPCLH2NKIBVTCTOXC \
  | 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: fcdbcefa88f35e259f4d5203598a6eb898b01bdaf84effb857835473f78a29b6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e3cb319913da5617818bb6262e8a96e16551256b5560adad8ded171cd51b5ace",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2012-10-25T15:56:29Z",
    "title_canon_sha256": "ac36bab68be620d0ea22d700174068332ad7d2719679c2af3eb0165d42e8f3c6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1210.6884",
    "kind": "arxiv",
    "version": 1
  }
}