Pith Number

pith:UIW4FZMK

pith:2016:UIW4FZMKZ24BHLFO5RPMGIC4QY

not attested not anchored not stored refs pending

Studying the nucleus of comet 9P/Tempel 1 using the structure of the Deep Impact ejecta cloud at the early stages of its development

Ashley King, Lev Nagdimunov, Ludmilla Kolokolova, Michael A`Hearn, Michael Wolff

arxiv:1604.01069 v1 · 2016-04-04 · 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{UIW4FZMKZ24BHLFO5RPMGIC4QY}

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	2026-05-18T00:55:46.673548Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a22dc2e58aceb813acaeec5ec3205c863d1f69990227979d3c0a5ede5a2ed438

Aliases

arxiv: 1604.01069 · arxiv_version: 1604.01069v1 · doi: 10.48550/arxiv.1604.01069 · pith_short_12: UIW4FZMKZ24B · pith_short_16: UIW4FZMKZ24BHLFO · pith_short_8: UIW4FZMK

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/UIW4FZMKZ24BHLFO5RPMGIC4QY \
  | 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: a22dc2e58aceb813acaeec5ec3205c863d1f69990227979d3c0a5ede5a2ed438

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "425db09205bde41d87ad00f36cc374764de4becb344a120df4e9746a5dcc9769",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/publicdomain/zero/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2016-04-04T21:33:49Z",
    "title_canon_sha256": "d7a20d08e7addf201c0f493e0fcc67e0eb77cf8c86061fecdf43dabc3d23cbf3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1604.01069",
    "kind": "arxiv",
    "version": 1
  }
}