Pith Number

pith:SWMS7Z2U

pith:2018:SWMS7Z2UBOVYOQUZA5B2T22OYI

not attested not anchored not stored refs pending

Computing Apparent Planetary Magnitudes for The Astronomical Almanac

Anthony Mallama, James L. Hilton

arxiv:1808.01973 v1 · 2018-08-06 · astro-ph.EP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SWMS7Z2UBOVYOQUZA5B2T22OYI}

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	2026-05-18T00:08:48.991350Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

95992fe7540bab8742990743a9eb4ec22869f350394c184ff193ead6197a7a56

Aliases

arxiv: 1808.01973 · arxiv_version: 1808.01973v1 · doi: 10.48550/arxiv.1808.01973 · pith_short_12: SWMS7Z2UBOVY · pith_short_16: SWMS7Z2UBOVYOQUZ · pith_short_8: SWMS7Z2U

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/SWMS7Z2UBOVYOQUZA5B2T22OYI \
  | 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: 95992fe7540bab8742990743a9eb4ec22869f350394c184ff193ead6197a7a56

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f0cd16a831c788b6f3b82bdfbd63d5f451bc19c695f4c4e6ec9ba131cb494385",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2018-08-06T16:05:56Z",
    "title_canon_sha256": "ea8887805ab88fd05b832d8460b2e76ff52e39adfc6d122da12b069b906a10b2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1808.01973",
    "kind": "arxiv",
    "version": 1
  }
}