Pith Number

pith:W72JMZOB

pith:2011:W72JMZOBPUQSSYB3L3BM3SXG25

not attested not anchored not stored refs pending

V1162 Orion: Updated Amplitude and Period Variation

Ai-Ying Zhou, Chayan Boonyarak, Pongsak Khokhuntod, Shi-Yang Jiang

arxiv:1109.3840 v1 · 2011-09-18 · 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{W72JMZOBPUQSSYB3L3BM3SXG25}

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	2026-05-18T04:12:45.761649Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b7f49665c17d2129603b5ec2cdcae6d75565f300e78b08efea1456c17c99fa77

Aliases

arxiv: 1109.3840 · arxiv_version: 1109.3840v1 · doi: 10.48550/arxiv.1109.3840 · pith_short_12: W72JMZOBPUQS · pith_short_16: W72JMZOBPUQSSYB3 · pith_short_8: W72JMZOB

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/W72JMZOBPUQSSYB3L3BM3SXG25 \
  | 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: b7f49665c17d2129603b5ec2cdcae6d75565f300e78b08efea1456c17c99fa77

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1c86ce16967c2a69e448a52e38d5b5eb0bc29bc201e660aafb482c84358723dd",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/3.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2011-09-18T03:23:52Z",
    "title_canon_sha256": "279a543f851e1bdce30274d1763859eda296f0e0248f5c4283c945a713617835"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1109.3840",
    "kind": "arxiv",
    "version": 1
  }
}