Pith Number

pith:4ITKEOOG

pith:2018:4ITKEOOGHCXW7OWMFM2AEJXFTU

not attested not anchored not stored refs pending

Icy Grains from the Nucleus of Comet C/2013 US10 (Catalina)

Bin Yang, Charles E. Woodward, Jacqueline V. Keane, James M. Bauer, Jessica M. Sunshine, Ludmilla Kolokolova, Michael S. P. Kelley, Silvia Protopapa

arxiv:1807.08215 v1 · 2018-07-22 · 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{4ITKEOOGHCXW7OWMFM2AEJXFTU}

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	2026-05-18T00:08:37.974216Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e226a239c638af6fbacc2b340226e59d0d4165270f087329c238fa984d403269

Aliases

arxiv: 1807.08215 · arxiv_version: 1807.08215v1 · doi: 10.48550/arxiv.1807.08215 · pith_short_12: 4ITKEOOGHCXW · pith_short_16: 4ITKEOOGHCXW7OWM · pith_short_8: 4ITKEOOG

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/4ITKEOOGHCXW7OWMFM2AEJXFTU \
  | 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: e226a239c638af6fbacc2b340226e59d0d4165270f087329c238fa984d403269

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "27c79bfe84d4d01bea35686cce4291cc06cf2d8d7e545be08eb6e29d0e0dec33",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2018-07-22T00:39:03Z",
    "title_canon_sha256": "7e3c75e98bad3c89f0abe5210b4dcf3b02f2ecaa04870e7ac764cca3898f9c66"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.08215",
    "kind": "arxiv",
    "version": 1
  }
}