Pith Number

pith:FOCNZAPD

pith:2015:FOCNZAPDQGZTJBUEGRZSYVNBVD

not attested not anchored not stored refs pending

Direct Exoplanet Detection with Binary Differential Imaging

Alycia Weinberger, Eric E. Mamajek, Jared R. Males, Katie Morzinski, Laird M. Close, Nathan Kaib, Philip M. Hinz, Timothy J. Rodigas

arxiv:1509.00007 v1 · 2015-08-31 · astro-ph.EP · astro-ph.IM · 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{FOCNZAPDQGZTJBUEGRZSYVNBVD}

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	2026-05-18T01:30:22.921840Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2b84dc81e381b334868434732c55a1a8c84aaf1785b18cdf4fe064c6ced3b4a5

Aliases

arxiv: 1509.00007 · arxiv_version: 1509.00007v1 · doi: 10.48550/arxiv.1509.00007 · pith_short_12: FOCNZAPDQGZT · pith_short_16: FOCNZAPDQGZTJBUE · pith_short_8: FOCNZAPD

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/FOCNZAPDQGZTJBUEGRZSYVNBVD \
  | 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: 2b84dc81e381b334868434732c55a1a8c84aaf1785b18cdf4fe064c6ced3b4a5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "64fc64904cdf5bdd74f32a89850b2fae48f8b4133d4d242af5dba5f7e710dd92",
    "cross_cats_sorted": [
      "astro-ph.IM",
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2015-08-31T20:08:29Z",
    "title_canon_sha256": "e5f3e64a90a1e9d5e143be95f7d0d27475348db7be5034df71704f7b54cb75f8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1509.00007",
    "kind": "arxiv",
    "version": 1
  }
}