Pith Number

pith:QTAE4FBW

pith:2021:QTAE4FBWGJCLGPNPMDJSKS6VFX

not attested not anchored not stored refs pending

On planetary systems as ordered sequences

David Kipping, Emily Sandford, Michael Collins

arxiv:2105.09966 v1 · 2021-05-20 · astro-ph.EP · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QTAE4FBWGJCLGPNPMDJSKS6VFX}

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	2026-07-05T02:55:48.351726Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

84c04e14363244b33daf60d3254bd52dc64fce2d518307277c22fed0d14a9a08

Aliases

arxiv: 2105.09966 · arxiv_version: 2105.09966v1 · doi: 10.48550/arxiv.2105.09966 · pith_short_12: QTAE4FBWGJCL · pith_short_16: QTAE4FBWGJCLGPNP · pith_short_8: QTAE4FBW

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/QTAE4FBWGJCLGPNPMDJSKS6VFX \
  | 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: 84c04e14363244b33daf60d3254bd52dc64fce2d518307277c22fed0d14a9a08

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "588b3c3a36b89f20bd7e592628278a801a1f0333fd6132f7e42f942f543b7727",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2021-05-20T18:00:29Z",
    "title_canon_sha256": "2b01e2478dcdee05d827d3cd8f98256f5ba0937a15610b6e93840be8c9e8d176"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2105.09966",
    "kind": "arxiv",
    "version": 1
  }
}