Pith Number

pith:WJ3CC4MI

pith:2019:WJ3CC4MIGTXGHGIWR2UT25YFPT

not attested not anchored not stored refs pending

A Pathfinder for Imaging Extrasolar Earths from the Ground

Subaru), Thayne Currie (NASA/Ames

arxiv:1906.02214 v1 · 2019-06-05 · astro-ph.EP · 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{WJ3CC4MIGTXGHGIWR2UT25YFPT}

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	2026-05-17T23:44:01.895913Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b27621718834ee6399168ea93d77057cea454167d96b33ea078ccaa455a73d02

Aliases

arxiv: 1906.02214 · arxiv_version: 1906.02214v1 · doi: 10.48550/arxiv.1906.02214 · pith_short_12: WJ3CC4MIGTXG · pith_short_16: WJ3CC4MIGTXGHGIW · pith_short_8: WJ3CC4MI

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/WJ3CC4MIGTXGHGIWR2UT25YFPT \
  | 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: b27621718834ee6399168ea93d77057cea454167d96b33ea078ccaa455a73d02

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b91113afa88e7d68c964ccd7f2d1f5ee4be5cdbb935b7d49d762333afb4cf2d1",
    "cross_cats_sorted": [
      "astro-ph.IM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2019-06-05T18:00:22Z",
    "title_canon_sha256": "2c751d8618fbc0bfbcb0e71121542963f025a36baf52341de53be0979aa0c36b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1906.02214",
    "kind": "arxiv",
    "version": 1
  }
}