Pith Number

pith:FJ2J3AY4

pith:2018:FJ2J3AY4HDSMCFLSX5BEFZSFP4

not attested not anchored not stored refs pending

Use of Python programming language in astronomy and science

Daniel M. Faes

arxiv:1807.04806 v1 · 2018-07-12 · 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{FJ2J3AY4HDSMCFLSX5BEFZSFP4}

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	2026-05-18T00:10:51.377220Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2a749d831c38e4c11572bf4242e6457f241faa45df9006d217e9087c774a289f

Aliases

arxiv: 1807.04806 · arxiv_version: 1807.04806v1 · doi: 10.48550/arxiv.1807.04806 · pith_short_12: FJ2J3AY4HDSM · pith_short_16: FJ2J3AY4HDSMCFLS · pith_short_8: FJ2J3AY4

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/FJ2J3AY4HDSMCFLSX5BEFZSFP4 \
  | 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: 2a749d831c38e4c11572bf4242e6457f241faa45df9006d217e9087c774a289f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bb31d3574dc6ab0df3f95665b7b82e463b890c7e6173a5613b79f93be4ae5cad",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2018-07-12T20:09:02Z",
    "title_canon_sha256": "3d74913c99279af1259de3753dfd029c0663ea9a58a65433e1c9369bf9042613"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.04806",
    "kind": "arxiv",
    "version": 1
  }
}