Pith Number

pith:FA2M6ZRZ

pith:2018:FA2M6ZRZYJGZ7AV7WNVWCE2A62

not attested not anchored not stored refs pending

unyt: Handle, manipulate, and convert data with units in Python

Anna L. Rosen, John A. ZuHone, Kacper Kowalik, Matthew J. Turk, Nathan J. Goldbaum

arxiv:1806.02417 v3 · 2018-06-06 · 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{FA2M6ZRZYJGZ7AV7WNVWCE2A62}

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	2026-05-18T00:04:22.933514Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2834cf6639c24d9f82bfb36b611340f6850e442fb2c97a45d45f5ec21b52fe51

Aliases

arxiv: 1806.02417 · arxiv_version: 1806.02417v3 · doi: 10.48550/arxiv.1806.02417 · pith_short_12: FA2M6ZRZYJGZ · pith_short_16: FA2M6ZRZYJGZ7AV7 · pith_short_8: FA2M6ZRZ

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/FA2M6ZRZYJGZ7AV7WNVWCE2A62 \
  | 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: 2834cf6639c24d9f82bfb36b611340f6850e442fb2c97a45d45f5ec21b52fe51

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cf253d44cd46449bdea40b98b010d7daede47447faca33b97c695645f776e86e",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2018-06-06T20:43:01Z",
    "title_canon_sha256": "b0c6ba5bf5a8bcdac6c1bcccad970c48d63a086fba749be864b41bdcb2eadf54"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1806.02417",
    "kind": "arxiv",
    "version": 3
  }
}