Pith Number

pith:U7ZPMIDL

pith:2013:U7ZPMIDLHSD7N5BDD3CDNSNH4R

not attested not anchored not stored refs pending

Moving Objects in the Hubble Ultra Deep Field

Alexandros Gianninas, Mukremin Kilic, Ted von Hippel

arxiv:1307.5067 v1 · 2013-07-18 · astro-ph.GA · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{U7ZPMIDLHSD7N5BDD3CDNSNH4R}

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	2026-05-18T01:48:42.752393Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a7f2f6206b3c87f6f4231ec436c9a7e4448e054ff6e42a9a944741b69ae563ac

Aliases

arxiv: 1307.5067 · arxiv_version: 1307.5067v1 · doi: 10.48550/arxiv.1307.5067 · pith_short_12: U7ZPMIDLHSD7 · pith_short_16: U7ZPMIDLHSD7N5BD · pith_short_8: U7ZPMIDL

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/U7ZPMIDLHSD7N5BDD3CDNSNH4R \
  | 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: a7f2f6206b3c87f6f4231ec436c9a7e4448e054ff6e42a9a944741b69ae563ac

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7c11da46ffc4979d25314580a457350e3cfb1912460a8c16e7e51f006edb165b",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2013-07-18T20:00:28Z",
    "title_canon_sha256": "10247858a853d9815c803f675522c3fa9970baeaa53dc0dc7984633b720b111e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1307.5067",
    "kind": "arxiv",
    "version": 1
  }
}