Pith Number

pith:WPFKY5NG

pith:2019:WPFKY5NG62UA7UFAFU5545OYMC

not attested not anchored not stored refs pending

Exoplanet direct imaging in ground-based conditions on THD2 bench

A. Potier, E. Huby, G. Singh, P. Baudoz, R. Galicher

arxiv:1910.09064 v1 · 2019-10-20 · astro-ph.IM · astro-ph.EP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WPFKY5NG62UA7UFAFU5545OYMC}

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	2026-07-05T00:13:22.366131Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b3caac75a6f6a80fd0a02d3bde75d860977e30f012ab1ff8eb2139e555d073ac

Aliases

arxiv: 1910.09064 · arxiv_version: 1910.09064v1 · doi: 10.48550/arxiv.1910.09064 · pith_short_12: WPFKY5NG62UA · pith_short_16: WPFKY5NG62UA7UFA · pith_short_8: WPFKY5NG

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/WPFKY5NG62UA7UFAFU5545OYMC \
  | 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: b3caac75a6f6a80fd0a02d3bde75d860977e30f012ab1ff8eb2139e555d073ac

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1d15e0cb06ae6bf755f311a0ed35ff5f4edafb0fa4b49380f276cb0f347fbabc",
    "cross_cats_sorted": [
      "astro-ph.EP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2019-10-20T20:55:26Z",
    "title_canon_sha256": "219596111a6c8e3dfb835d2dd8ef5dbbfce587fd371d0e1f07b2f5b14251e823"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1910.09064",
    "kind": "arxiv",
    "version": 1
  }
}