Pith Number

pith:7PZ2DEA3

pith:2014:7PZ2DEA3KSJEE4ZAI45YYWBQ3V

not attested not anchored not stored refs pending

Short-term variability on the surface of (1) Ceres. A changing amount of water ice?

C. Lantz, D. Perna, E. Dotto, G. Strazzulla, M. A. Barucci, S. Fornasier, S. Ieva, Z. Ka\v{n}uchov\'a

arxiv:1412.5318 v2 · 2014-12-17 · 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{7PZ2DEA3KSJEE4ZAI45YYWBQ3V}

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	2026-05-18T02:27:31.745368Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fbf3a1901b5492427320473b8c5830dd483bc76780d90805dbdd742d6cf1ecc6

Aliases

arxiv: 1412.5318 · arxiv_version: 1412.5318v2 · doi: 10.48550/arxiv.1412.5318 · pith_short_12: 7PZ2DEA3KSJE · pith_short_16: 7PZ2DEA3KSJEE4ZA · pith_short_8: 7PZ2DEA3

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/7PZ2DEA3KSJEE4ZAI45YYWBQ3V \
  | 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: fbf3a1901b5492427320473b8c5830dd483bc76780d90805dbdd742d6cf1ecc6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "de4ff575da9b4df6f14cd94f9993cd790199976cb574bbf341cb994face2426c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2014-12-17T10:14:36Z",
    "title_canon_sha256": "14a9b1e08e30b96d0c35082b04f34c187c73197af1a69fdff80cfefb83c5b638"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1412.5318",
    "kind": "arxiv",
    "version": 2
  }
}