Pith Number

pith:47Z3GQKU

pith:2006:47Z3GQKUNQGQFGMI3AHV4EIOFF

not attested not anchored not stored refs pending

Star Formation History of the Hubble Ultra Deep Field: Comparison with the HDFN

Daniel Eisenstein, Garth Illingworth, Mark Dickinson, Robert C. Kennicutt, Rodger I. Thompson, Xiaohui Fan

arxiv:astro-ph/0605060 v1 · 2006-05-02 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{47Z3GQKUNQGQFGMI3AHV4EIOFF}

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	2026-05-18T04:29:04.742165Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e7f3b341546c0d029988d80f5e110e296622aa17105d22a8661cabf39138e9be

Aliases

arxiv: astro-ph/0605060 · arxiv_version: astro-ph/0605060v1 · doi: 10.48550/arxiv.astro-ph/0605060 · pith_short_12: 47Z3GQKUNQGQ · pith_short_16: 47Z3GQKUNQGQFGMI · pith_short_8: 47Z3GQKU

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/47Z3GQKUNQGQFGMI3AHV4EIOFF \
  | 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: e7f3b341546c0d029988d80f5e110e296622aa17105d22a8661cabf39138e9be

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "911ef849370c2feb3e07eb3414619d419c1f240f537f8ffa33962800894dbc84",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2006-05-02T17:03:56Z",
    "title_canon_sha256": "f9165259d4c19490419bb11df9cfbfc8f5e6a06b365d1aac99a6bceb275c64ef"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0605060",
    "kind": "arxiv",
    "version": 1
  }
}