Pith Number

pith:2APFHNUA

pith:2015:2APFHNUA2OGACJCBDNCI34EXJJ

not attested not anchored not stored refs pending

Lower Limits on Aperture Size for an ExoEarth-Detecting Coronagraphic Mission

Aki Roberge, Avi Mandell, Christopher C. Stark, Karl R. Stapelfeldt, Mark Clampin, Michael W. McElwain, Shawn D. Domagal-Goldman

arxiv:1506.01723 v1 · 2015-06-04 · 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{2APFHNUA2OGACJCBDNCI34EXJJ}

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	2026-05-18T01:35:47.292766Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d01e53b680d38c0124411b448df0974a4c3955078afe878b1a188b4f562b695d

Aliases

arxiv: 1506.01723 · arxiv_version: 1506.01723v1 · doi: 10.48550/arxiv.1506.01723 · pith_short_12: 2APFHNUA2OGA · pith_short_16: 2APFHNUA2OGACJCB · pith_short_8: 2APFHNUA

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/2APFHNUA2OGACJCBDNCI34EXJJ \
  | 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: d01e53b680d38c0124411b448df0974a4c3955078afe878b1a188b4f562b695d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ac8b5bfac9d5c4f7c03620b3a18b7664b1f551ff4a06b6a846d03a6afd80a9a7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2015-06-04T20:04:46Z",
    "title_canon_sha256": "6b24fd2707520ed0ccaeac7710b77b5414d94eb839c6f8016e549ba44b25ad3c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1506.01723",
    "kind": "arxiv",
    "version": 1
  }
}