Pith Number

pith:TM2JFINQ

pith:2012:TM2JFINQDPIF2DNEU2FJ6IUOLI

not attested not anchored not stored refs pending

The progenitor mass of the Type IIP supernova SN 2004et from late-time spectral modeling

Anders Jerkstrand, Claes Fransson, Jason Spyromilio, Kate Maguire, Mattias Ergon, Stephen Smartt

arxiv:1208.2183 v2 · 2012-08-10 · astro-ph.HE · 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{TM2JFINQDPIF2DNEU2FJ6IUOLI}

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	2026-05-18T01:55:16.838731Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9b3492a1b01bd05d0da4a68a9f228e5a3143c23e3d7f4357357b53d0157b84d1

Aliases

arxiv: 1208.2183 · arxiv_version: 1208.2183v2 · doi: 10.48550/arxiv.1208.2183 · pith_short_12: TM2JFINQDPIF · pith_short_16: TM2JFINQDPIF2DNE · pith_short_8: TM2JFINQ

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/TM2JFINQDPIF2DNEU2FJ6IUOLI \
  | 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: 9b3492a1b01bd05d0da4a68a9f228e5a3143c23e3d7f4357357b53d0157b84d1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5aaaee395938d57fa234547941d1c2f787cba62c53200593f2396990a599029e",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2012-08-10T14:16:17Z",
    "title_canon_sha256": "9fa0c0a0fa1fb55b9dd7c82d965fed01e843a5f34b8427cf566db479945e0978"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1208.2183",
    "kind": "arxiv",
    "version": 2
  }
}