Pith Number

pith:R7KBSN7Z

pith:2009:R7KBSN7ZEKWQH2BHJADT5AFZ4B

not attested not anchored not stored refs pending

Nulling interferometry: impact of exozodiacal clouds on the performance of future life-finding space missions

C. Hanot, C. Stark, D. Defr\`ere, O. Absil, R. den Hartog

arxiv:0910.3486 v1 · 2009-10-19 · 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{R7KBSN7ZEKWQH2BHJADT5AFZ4B}

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	2026-07-04T15:54:43.004552Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8fd41937f922ad03e82748073e80b9e05d6e2ba7a0e83cfb956871b971d97c67

Aliases

arxiv: 0910.3486 · arxiv_version: 0910.3486v1 · doi: 10.48550/arxiv.0910.3486 · pith_short_12: R7KBSN7ZEKWQ · pith_short_16: R7KBSN7ZEKWQH2BH · pith_short_8: R7KBSN7Z

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/R7KBSN7ZEKWQH2BHJADT5AFZ4B \
  | 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: 8fd41937f922ad03e82748073e80b9e05d6e2ba7a0e83cfb956871b971d97c67

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "35d75aa9e474e7bbc8a8d1912a1cf368f54fe40422d6b889c8a70d63c780a043",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2009-10-19T09:45:00Z",
    "title_canon_sha256": "7656716a221640db11ef1da92271a855bdda8f0374b8d53dad390261b8df3660"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0910.3486",
    "kind": "arxiv",
    "version": 1
  }
}