Pith Number

pith:4XO7WUA4

pith:2021:4XO7WUA4UXBNUWLI3ST4RVYSJZ

not attested not anchored not stored refs pending

A Mission to Nature's Telescope for High-Resolution Imaging of an Exoplanet

Artur R. Davoyan, Darren Garber, Henry Helvajian, John McVey, Louis D. Friedman, Slava G. Turyshev, Thomas Heinshiemer

arxiv:2107.11473 v1 · 2021-07-23 · astro-ph.IM · astro-ph.EP · gr-qc

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4XO7WUA4UXBNUWLI3ST4RVYSJZ}

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.

Cited by

3 papers in Pith

Ultra-High-Resolution Astronomy with the Solar Gravitational Lens

Propulsion Trades for a 2035-2040 Solar Gravitational Lens Mission

Receipt and verification

First computed	2026-07-05T07:44:39.059193Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e5ddfb501ca5c2da5968dca7c8d7124e467638eebdf3b7609e5c1837eda32050

Aliases

arxiv: 2107.11473 · arxiv_version: 2107.11473v1 · doi: 10.48550/arxiv.2107.11473 · pith_short_12: 4XO7WUA4UXBN · pith_short_16: 4XO7WUA4UXBNUWLI · pith_short_8: 4XO7WUA4

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/4XO7WUA4UXBNUWLI3ST4RVYSJZ \
  | 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: e5ddfb501ca5c2da5968dca7c8d7124e467638eebdf3b7609e5c1837eda32050

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b70d8e61527129c649732ba6ef3f046483da01c0de3b42ca50b4624890fd0647",
    "cross_cats_sorted": [
      "astro-ph.EP",
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2021-07-23T22:15:45Z",
    "title_canon_sha256": "dfd8ae7ec91344e10760364a4f31e278538dc2bdf0cc04cee20cb04cabf78b30"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2107.11473",
    "kind": "arxiv",
    "version": 1
  }
}