Pith Number

pith:7L4F53VG

pith:2020:7L4F53VGKS6ZJLLIUGXJRY4337

not attested not anchored not stored refs pending

Low-cost precursor of an interstellar mission

(2) Institut de Ci\`encies de l'Espai, 3), (3) Institut d'Estudis Espacials de Catalunya, (4) Sonneberg Observatory (GER), 5), (5) Visiting Scholar, (6) LESIA, Astronomy Department, Barcelona (ESP), Bellaterra (ESP), Breakthrough Listen Group, G\"ottingen (GER), Guillem Anglada-Escud\'e (2, Michael Hippke (4, Observatoire de Paris (FRA)), Pierre Kervella (6) ((1) Max Planck Institute for Solar System Research, Ren\'e Heller (1), UC Berkeley (USA)

arxiv:2007.12814 v1 · 2020-07-25 · astro-ph.IM · physics.space-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7L4F53VGKS6ZJLLIUGXJRY4337}

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	2026-07-05T01:34:02.519070Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

faf85eeea654bd94ad68a1ae98e39bdfc69ddcd2daa1dc460fe483219cc9775f

Aliases

arxiv: 2007.12814 · arxiv_version: 2007.12814v1 · doi: 10.48550/arxiv.2007.12814 · pith_short_12: 7L4F53VGKS6Z · pith_short_16: 7L4F53VGKS6ZJLLI · pith_short_8: 7L4F53VG

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/7L4F53VGKS6ZJLLIUGXJRY4337 \
  | 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: faf85eeea654bd94ad68a1ae98e39bdfc69ddcd2daa1dc460fe483219cc9775f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1914d091c3da4f141981dff3b217964a54987c6e247d2bcf19306614e006410a",
    "cross_cats_sorted": [
      "physics.space-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2020-07-25T00:41:51Z",
    "title_canon_sha256": "f550864ab43fbb5a0ae9cf2a6d8b95bdc28d03a877d3a12bb35bec4839a5d58c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2007.12814",
    "kind": "arxiv",
    "version": 1
  }
}