Pith Number

pith:7PFF6SDX

pith:2012:7PFF6SDXM6ISGRSFHFCIPFRH7W

not attested not anchored not stored refs pending

A Binary Progenitor for the Type IIb Supernova 2011dh in M51

Ken'ichi Nomoto, Melina C. Bersten, Omar G. Benvenuto

arxiv:1207.5807 v2 · 2012-07-24 · astro-ph.SR · 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{7PFF6SDXM6ISGRSFHFCIPFRH7W}

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	2026-05-18T01:56:08.152309Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fbca5f487767912346453944879627fd859c8ac6461221ee52a323d653a99ea4

Aliases

arxiv: 1207.5807 · arxiv_version: 1207.5807v2 · doi: 10.48550/arxiv.1207.5807 · pith_short_12: 7PFF6SDXM6IS · pith_short_16: 7PFF6SDXM6ISGRSF · pith_short_8: 7PFF6SDX

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/7PFF6SDXM6ISGRSFHFCIPFRH7W \
  | 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: fbca5f487767912346453944879627fd859c8ac6461221ee52a323d653a99ea4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "58e72c188c962662d1e2d3b5aa14db428138f32237ee41017c09cb241a2b6067",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2012-07-24T20:04:48Z",
    "title_canon_sha256": "90694b43cc73fb655f9100d4c331baedb1956db1efff1a4ea3329327cb7168f9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1207.5807",
    "kind": "arxiv",
    "version": 2
  }
}