Pith Number

pith:2FTCK7Q4

pith:2007:2FTCK7Q4ZVMKIYYKDH7RTXTX3K

not attested not anchored not stored refs pending

Superluminous supernovae: No threat from Eta Carinae

Adrian L. Melott (Univ. of Kansas), Barbara J. Anthony-Twarog (Univ. of Kansas), Brian C. Thomas (Washburn Univ.), Brian D. Fields (Univ. of Illinois)

arxiv:0705.4274 v2 · 2007-05-29 · astro-ph · physics.ao-ph · q-bio.PE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2FTCK7Q4ZVMKIYYKDH7RTXTX3K}

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	2026-07-04T15:09:44.876784Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d166257e1ccd58a4630a19ff19de77dabfa19ed39c9d8b2b97c28cc218201119

Aliases

arxiv: 0705.4274 · arxiv_version: 0705.4274v2 · doi: 10.48550/arxiv.0705.4274 · pith_short_12: 2FTCK7Q4ZVMK · pith_short_16: 2FTCK7Q4ZVMKIYYK · pith_short_8: 2FTCK7Q4

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/2FTCK7Q4ZVMKIYYKDH7RTXTX3K \
  | 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: d166257e1ccd58a4630a19ff19de77dabfa19ed39c9d8b2b97c28cc218201119

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a950a020f313b8027523636eb659d19f2ac5de8dda40b9c4e8fee4419a4e0c91",
    "cross_cats_sorted": [
      "physics.ao-ph",
      "q-bio.PE"
    ],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2007-05-29T18:56:18Z",
    "title_canon_sha256": "69cf642c1434ad497531130fd44b34f8676258f8d4154bed206cad56c454daa1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0705.4274",
    "kind": "arxiv",
    "version": 2
  }
}