Pith Number

pith:L54M5JZU

pith:2021:L54M5JZUQ5IMCZYY6T2JMDEL4G

not attested not anchored not stored refs pending

The Planetary Ephemeris Program: Capability, Comparison, and Open Source Availability

Daniel Reardon, Irwin I. Shapiro, James B. R. Battat, John F. Chandler, Jr., Robert D. Reasenberg, Thomas W. Murphy

arxiv:2103.16745 v1 · 2021-03-31 · astro-ph.IM · astro-ph.EP · astro-ph.HE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{L54M5JZUQ5IMCZYY6T2JMDEL4G}

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

1 paper in Pith

Equivalence Principle violation in metric-affine gravity and finite-temperature effects

Receipt and verification

First computed	2026-07-05T03:04:49.160035Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5f78cea7348750c16718f4f4960c8be18074fc56e35c3b209089b2b2e801dd68

Aliases

arxiv: 2103.16745 · arxiv_version: 2103.16745v1 · doi: 10.48550/arxiv.2103.16745 · pith_short_12: L54M5JZUQ5IM · pith_short_16: L54M5JZUQ5IMCZYY · pith_short_8: L54M5JZU

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/L54M5JZUQ5IMCZYY6T2JMDEL4G \
  | 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: 5f78cea7348750c16718f4f4960c8be18074fc56e35c3b209089b2b2e801dd68

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "71d6b1269e1b9719e94fe32fe5bdff2c09f6864ce4ed2b6bf2e22a63699f61b4",
    "cross_cats_sorted": [
      "astro-ph.EP",
      "astro-ph.HE"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2021-03-31T00:50:01Z",
    "title_canon_sha256": "61968c9015d7c6b8b31bd8d8bbb6a3c825d468e97285d3982d4813da577e3151"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2103.16745",
    "kind": "arxiv",
    "version": 1
  }
}