Pith Number

pith:OPXVBC2C

pith:2008:OPXVBC2C5ORSDS2DT5M2NSOXEX

not attested not anchored not stored refs pending

Progenitor mass of the type IIP supernova 2005cs

2), Garching; (2) ITEP, Moscow), Moscow; (3) Institute of Astronomy, N.N. Chugai (3) ((1) MPA, RAS, V.P. Utrobin (1

arxiv:0809.3766 v1 · 2008-09-22 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OPXVBC2C5ORSDS2DT5M2NSOXEX}

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	2026-07-04T17:12:55.345661Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

73ef508b42eba321cb439f59a6c9d725ca146e3e52471ecb8e3af2c528a68b14

Aliases

arxiv: 0809.3766 · arxiv_version: 0809.3766v1 · doi: 10.48550/arxiv.0809.3766 · pith_short_12: OPXVBC2C5ORS · pith_short_16: OPXVBC2C5ORSDS2D · pith_short_8: OPXVBC2C

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/OPXVBC2C5ORSDS2DT5M2NSOXEX \
  | 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: 73ef508b42eba321cb439f59a6c9d725ca146e3e52471ecb8e3af2c528a68b14

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1cde9af9734b98b75fc78492f56bc2f97842bdd1f52baa1d194434031e004b32",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph",
    "submitted_at": "2008-09-22T18:54:42Z",
    "title_canon_sha256": "fcf30c35b9f0e7e13f91c7c1391c5a47d3230ab10ca07370a3fdf44e0cd159db"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0809.3766",
    "kind": "arxiv",
    "version": 1
  }
}