Pith Number

pith:32EU7TU4

pith:2013:32EU7TU4VYBQDYRJAQOOM63ZBW

not attested not anchored not stored refs pending

A Late-Time View of the Progenitors of Five Type IIP Supernovae

2), (2) DARK Cosmology Centre, (3) Finnish Centre for Astronomy with ESO, E. Reilly (1), J. Maund (1, Niels Bohr Institute, Queen's University Belfast, S. Mattila (3) ((1) Astrophysics Research Centre, University of Turku)

arxiv:1302.7152 v1 · 2013-02-28 · 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{32EU7TU4VYBQDYRJAQOOM63ZBW}

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	2026-05-18T01:51:26.134779Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

de894fce9cae0301e229041ce67b790da1288057e117bde07b23f7764dffab78

Aliases

arxiv: 1302.7152 · arxiv_version: 1302.7152v1 · doi: 10.48550/arxiv.1302.7152 · pith_short_12: 32EU7TU4VYBQ · pith_short_16: 32EU7TU4VYBQDYRJ · pith_short_8: 32EU7TU4

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/32EU7TU4VYBQDYRJAQOOM63ZBW \
  | 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: de894fce9cae0301e229041ce67b790da1288057e117bde07b23f7764dffab78

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "88c262bf219fdc6890385ac2b7fe045a92d84846324bf955bbfe60082278f56d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2013-02-28T11:05:09Z",
    "title_canon_sha256": "452f6e98a54c1d61a29f2700c62cb24054a7daf17b20b57b8dd35843b6959878"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1302.7152",
    "kind": "arxiv",
    "version": 1
  }
}