Pith Number

pith:KRGHWPR5

pith:2012:KRGHWPR5AAJ72BUTN23X7QA2ZH

not attested not anchored not stored refs pending

Spectral modelling of the "Super-Chandra" Type Ia SN 2009dc - testing a 2 M_sun white dwarf explosion model and alternatives

Ivo R. Seitenzahl, Michael Fink, Paolo A. Mazzali, R\"udiger Pakmor, Stefan Taubenberger, Stephan Hachinger, Wolfgang Hillebrandt

arxiv:1209.1339 v2 · 2012-09-06 · 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{KRGHWPR5AAJ72BUTN23X7QA2ZH}

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	2026-05-18T03:35:13.714129Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

544c7b3e3d0013fd06936eb77fc01ac9cada968b8122d54747a7b13dcba5c761

Aliases

arxiv: 1209.1339 · arxiv_version: 1209.1339v2 · doi: 10.48550/arxiv.1209.1339 · pith_short_12: KRGHWPR5AAJ7 · pith_short_16: KRGHWPR5AAJ72BUT · pith_short_8: KRGHWPR5

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/KRGHWPR5AAJ72BUTN23X7QA2ZH \
  | 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: 544c7b3e3d0013fd06936eb77fc01ac9cada968b8122d54747a7b13dcba5c761

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8105fc49a7704330de6db18ef0bf51399132d4d5d58f7ab8f0be7d486600c4ac",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2012-09-06T16:44:23Z",
    "title_canon_sha256": "262da4650af1c5f304c2bdebaf5e4a3d758b8f9aae45a3304cb346d28bb6dfff"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1209.1339",
    "kind": "arxiv",
    "version": 2
  }
}