Pith Number

pith:G2I765OV

pith:2009:G2I765OVFM4YKLHMJMP4IQHPCZ

not attested not anchored not stored refs pending

High-contrast coronagraph for ground-based imaging of Jupiter-like planets

Deqing Ren, Jiangpei Dou, Yongtian Zhu

arxiv:0910.5355 v1 · 2009-10-28 · astro-ph.IM · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{G2I765OVFM4YKLHMJMP4IQHPCZ}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T02:11:02.274509Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3691ff75d52b39852cec4b1fc440ef164720126d192e95cbe0092b8dabc157c1

Aliases

arxiv: 0910.5355 · arxiv_version: 0910.5355v1 · doi: 10.48550/arxiv.0910.5355 · pith_short_12: G2I765OVFM4Y · pith_short_16: G2I765OVFM4YKLHM · pith_short_8: G2I765OV

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/G2I765OVFM4YKLHMJMP4IQHPCZ \
  | 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: 3691ff75d52b39852cec4b1fc440ef164720126d192e95cbe0092b8dabc157c1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2f80d0e485a72ca2a89229b857ba172a74c8562d9a7106db9ee531e9563f4b63",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2009-10-28T11:54:24Z",
    "title_canon_sha256": "9385b3cd359a260f4642350f0025dd8c8383cbab88d41810cb368a96979c81c7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0910.5355",
    "kind": "arxiv",
    "version": 1
  }
}