Pith Number

pith:52HUC2I4

pith:2016:52HUC2I4TT43G4HJZQUE5JZP5V

not attested not anchored not stored refs pending

The surface age of Sputnik Planum, Pluto, must be less than 10 million years

David E. Trilling

arxiv:1601.02833 v1 · 2016-01-12 · 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{52HUC2I4TT43G4HJZQUE5JZP5V}

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	2026-05-18T01:20:32.216229Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ee8f41691c9cf9b370e9cc284ea72fed615cfcfdebb8131af620d45b37bdcdc4

Aliases

arxiv: 1601.02833 · arxiv_version: 1601.02833v1 · doi: 10.48550/arxiv.1601.02833 · pith_short_12: 52HUC2I4TT43 · pith_short_16: 52HUC2I4TT43G4HJ · pith_short_8: 52HUC2I4

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/52HUC2I4TT43G4HJZQUE5JZP5V \
  | 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: ee8f41691c9cf9b370e9cc284ea72fed615cfcfdebb8131af620d45b37bdcdc4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fc82de55007948f3f7255e8ceacbad4ebcbdf59420f0099e4c90adc581b3d55c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2016-01-12T12:52:54Z",
    "title_canon_sha256": "9cedead69d2cc3d77ffec0fb32d855206ab47539b78c12eca0c7b5c0feb816c1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1601.02833",
    "kind": "arxiv",
    "version": 1
  }
}