Pith Number

pith:YOCS2WJ6

pith:2014:YOCS2WJ64EDB54745VO7CHQ446

not attested not anchored not stored refs pending

Problems with twilight/supersky flat-field for wide-field robotic telescopes and the solution

Bin Ma, Cheng Zhao, Peng Wei, Qiang Liu, Yi Hu, Zhaohui Shang

arxiv:1407.8283 v1 · 2014-07-31 · astro-ph.IM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{YOCS2WJ64EDB54745VO7CHQ446}

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	2026-05-18T01:42:26.947264Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c3852d593ee1061ef3fced5df11e1ce7b474b3c5cba4755ec6431c147a9787ff

Aliases

arxiv: 1407.8283 · arxiv_version: 1407.8283v1 · doi: 10.48550/arxiv.1407.8283 · pith_short_12: YOCS2WJ64EDB · pith_short_16: YOCS2WJ64EDB5474 · pith_short_8: YOCS2WJ6

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/YOCS2WJ64EDB54745VO7CHQ446 \
  | 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: c3852d593ee1061ef3fced5df11e1ce7b474b3c5cba4755ec6431c147a9787ff

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1460bf6e9afa364343618ae4577a7db52b9eb85c4468a14b38eb63917757280a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2014-07-31T05:38:17Z",
    "title_canon_sha256": "9491cc724e5c15c0a5f243ebe8a70943d577b232388cd36a84eb66c16a2dab24"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1407.8283",
    "kind": "arxiv",
    "version": 1
  }
}