Pith Number

pith:VCOIRUSS

pith:2011:VCOIRUSSWPZISDE4DBJUKZYIDW

not attested not anchored not stored refs pending

CCD photometric study of the W UMa-type binary II CMa in the field of Berkeley 33

Dai Zhibin, He Jiajia, Liao Wenping, Liu Liang, Qian Shengbang, Yuan Jinzhao, Zhao Jia, Zhu Liying

arxiv:1103.2031 v1 · 2011-03-10 · 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{VCOIRUSSWPZISDE4DBJUKZYIDW}

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	2026-05-18T02:02:55.106251Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a89c88d252b3f2890c9c18534567081d8597d8955659e79a29d0b15d86de5ad9

Aliases

arxiv: 1103.2031 · arxiv_version: 1103.2031v1 · doi: 10.48550/arxiv.1103.2031 · pith_short_12: VCOIRUSSWPZI · pith_short_16: VCOIRUSSWPZISDE4 · pith_short_8: VCOIRUSS

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/VCOIRUSSWPZISDE4DBJUKZYIDW \
  | 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: a89c88d252b3f2890c9c18534567081d8597d8955659e79a29d0b15d86de5ad9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a821a68a727717b47cd95589b23ba21207e748eddd2fad394ebf704d2f6bc0d7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2011-03-10T13:33:45Z",
    "title_canon_sha256": "4ded59e60dfdb9d299640a7cdb1de972d7878638984db10180e75e836190faf6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1103.2031",
    "kind": "arxiv",
    "version": 1
  }
}