Pith Number

pith:CPFBUJQ3

pith:2013:CPFBUJQ3HAB5MB2JQR2AVHYHGE

not attested not anchored not stored refs pending

A new precise mass for the progenitor of the Type IIP SN 2008bk

(2) FINCA, (3) UC Santa Cruz, (4) University of Auckland), E. Ramirez-Ruiz (3), J.J. Eldridge (4) ((1) Queen's University Belfast, J.R. Maund (1), S. Mattila (2), Turku

arxiv:1308.4393 v1 · 2013-08-20 · 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{CPFBUJQ3HAB5MB2JQR2AVHYHGE}

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	2026-05-18T01:48:07.596912Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

13ca1a261b3803d6074984740a9f07312b3c3bd8afc5616b47bae807ac86a28e

Aliases

arxiv: 1308.4393 · arxiv_version: 1308.4393v1 · doi: 10.48550/arxiv.1308.4393 · pith_short_12: CPFBUJQ3HAB5 · pith_short_16: CPFBUJQ3HAB5MB2J · pith_short_8: CPFBUJQ3

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/CPFBUJQ3HAB5MB2JQR2AVHYHGE \
  | 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: 13ca1a261b3803d6074984740a9f07312b3c3bd8afc5616b47bae807ac86a28e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "787c94dd6de68113ca93a16bd739cf2ccdde383fb0c7c7fdab781e0ae8e5db53",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2013-08-20T19:38:05Z",
    "title_canon_sha256": "54f9de1d1bde61de09b389ecb20f0169cd91a42721fc32091e650a51b7499cbb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1308.4393",
    "kind": "arxiv",
    "version": 1
  }
}