Pith Number

pith:IL63VGMG

pith:2014:IL63VGMGWSS6PQSHSEQIKMD57F

not attested not anchored not stored refs pending

SN Hunt 248: a super-Eddington outburst from a massive cool hypergiant

Alexei V. Filippenko, D. Andrew Howell, Iair Arcavi, Jon C. Mauerhan, Kelsey I. Clubb, Melissa L Graham, Nathan Smith, Peter J. Brown, Schuyler D. Van Dyk, Stefano Valenti, Weikang Zheng

arxiv:1407.4681 v3 · 2014-07-17 · 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{IL63VGMGWSS6PQSHSEQIKMD57F}

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	2026-05-18T01:42:34.344572Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

42fdba9986b4a5e7c247912085307df977dd1a9e94791418eecdca5a03051988

Aliases

arxiv: 1407.4681 · arxiv_version: 1407.4681v3 · doi: 10.48550/arxiv.1407.4681 · pith_short_12: IL63VGMGWSS6 · pith_short_16: IL63VGMGWSS6PQSH · pith_short_8: IL63VGMG

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/IL63VGMGWSS6PQSHSEQIKMD57F \
  | 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: 42fdba9986b4a5e7c247912085307df977dd1a9e94791418eecdca5a03051988

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b434f8b8d3ec542be99cd1304a4192bf5623cfff531a866fb970a6f923ae2777",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2014-07-17T14:29:43Z",
    "title_canon_sha256": "24be614e834a9ad9dab7d9447aa3d1a7f220e5da78c30928372aa8e4fdc51f69"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1407.4681",
    "kind": "arxiv",
    "version": 3
  }
}