Pith Number

pith:PM4QCALK

pith:2011:PM4QCALKY2QYAANAANAOMO6RH5

not attested not anchored not stored refs pending

`Pure' Supernovae and Accelerated Expansion of the Universe

E. S. Gorbovskoy, M. V. Pruzhinskaya, V. M. Lipunov

arxiv:1109.1159 v1 · 2011-09-06 · 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{PM4QCALKY2QYAANAANAOMO6RH5}

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	2026-05-18T04:11:20.089670Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7b3901016ac6a18001a00340e63bd13f61b63c48fb2fcc973f248adc31eb5f77

Aliases

arxiv: 1109.1159 · arxiv_version: 1109.1159v1 · doi: 10.48550/arxiv.1109.1159 · pith_short_12: PM4QCALKY2QY · pith_short_16: PM4QCALKY2QYAANA · pith_short_8: PM4QCALK

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/PM4QCALKY2QYAANAANAOMO6RH5 \
  | 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: 7b3901016ac6a18001a00340e63bd13f61b63c48fb2fcc973f248adc31eb5f77

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e20e4c84684f3888b6dd99b15cc782056c6cb3441ecbd7de60b2d158936a791e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2011-09-06T12:47:39Z",
    "title_canon_sha256": "49ad3c95f9e4ed3a0701384116e9c164268b8dc66e3592a72d978a668c5c07e9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1109.1159",
    "kind": "arxiv",
    "version": 1
  }
}