Pith Number

pith:PTYZ3WAP

pith:2009:PTYZ3WAPSNLWQATANG5MIW2IGS

not attested not anchored not stored refs pending

On the nature of the progenitors of three type II-P supernovae: 2004et, 2006my and 2006ov

(2) University of Oxford, (3) University of Cambridge, (4) Gemini North Observatory, (5) DARK cosmology center, (6) University of Turku), A. Pastorello (1), A. W. Stephens (4), J. J. Eldridge (3), J. R. Maund (5), R. M. Crockett (1)(2), S. J. Smartt (1), S. Mattila (6) ((1) Queen's University Belfast, University of Copenhagen

arxiv:0912.3302 v2 · 2009-12-17 · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PTYZ3WAPSNLWQATANG5MIW2IGS}

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	2026-05-18T02:10:16.214613Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7cf19dd80f935768026069bac45b48349cef2344b18c672e0266d41ffe524308

Aliases

arxiv: 0912.3302 · arxiv_version: 0912.3302v2 · doi: 10.48550/arxiv.0912.3302 · pith_short_12: PTYZ3WAPSNLW · pith_short_16: PTYZ3WAPSNLWQATA · pith_short_8: PTYZ3WAP

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/PTYZ3WAPSNLWQATANG5MIW2IGS \
  | 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: 7cf19dd80f935768026069bac45b48349cef2344b18c672e0266d41ffe524308

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "005e4f97e7909709967256a3755b997a4d93bd229983331cbe96fd552588f42e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-12-17T01:30:00Z",
    "title_canon_sha256": "040cc589c30ea7ba2ad8a5f457fc287b01fca2f8b25bb5f7feb54d2c3aaebbfd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0912.3302",
    "kind": "arxiv",
    "version": 2
  }
}