Pith Number

pith:4FMXDCVT

pith:2010:4FMXDCVTBK7C2HWSKJ6IO7WTLW

not attested not anchored not stored refs pending

Examining the cosmic acceleration with the latest Union2 supernova data

Hongwei Yu, Puxun Wu, Zhengxiang Li

arxiv:1011.1982 v2 · 2010-11-09 · gr-qc · 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{4FMXDCVTBK7C2HWSKJ6IO7WTLW}

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	2026-05-18T02:23:37.254010Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e159718ab30abe2d1ed2527c877ed35daf6159dfcac14a1bb87c11616dbf0af6

Aliases

arxiv: 1011.1982 · arxiv_version: 1011.1982v2 · doi: 10.48550/arxiv.1011.1982 · pith_short_12: 4FMXDCVTBK7C · pith_short_16: 4FMXDCVTBK7C2HWS · pith_short_8: 4FMXDCVT

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/4FMXDCVTBK7C2HWSKJ6IO7WTLW \
  | 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: e159718ab30abe2d1ed2527c877ed35daf6159dfcac14a1bb87c11616dbf0af6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "75929832a304a85614eadd2dc01231822591b9eca1ab1b9bd79affb1de1f3a56",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2010-11-09T06:30:59Z",
    "title_canon_sha256": "761677ff7ad1e54aa8af85736ba612fa33541dc939c7fc5507f81f892bb9dac8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1011.1982",
    "kind": "arxiv",
    "version": 2
  }
}