Pith Number

pith:ZBW7VGAT

pith:2007:ZBW7VGATAM6JCGP5F2YYUIKK7N

not attested not anchored not stored refs pending

Resolved Galaxies in the Hubble Ultra Deep Field: Star Formation in Disks at High Redshift

(2) IBM Watson Research Center, (3) STScI, (4) Johns Hopkins Univ., Bruce G. Elmegreen (2), Daniel A. Coe (4) ((1) Vassar College, Debra Meloy Elmegreen (1), Granada, India, Instituto de Astrofisica de Andalucia, Maharashtra, Pune, Pune Univ., Spain), Swara Ravindranath (3)

arxiv:astro-ph/0701121 v1 · 2007-01-05 · 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{ZBW7VGATAM6JCGP5F2YYUIKK7N}

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	2026-05-18T01:40:27.161102Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c86dfa9813033c9119fd2eb18a214afb4040e49a0bdeaeb3ce7a6bfe23dcb027

Aliases

arxiv: astro-ph/0701121 · arxiv_version: astro-ph/0701121v1 · doi: 10.48550/arxiv.astro-ph/0701121 · pith_short_12: ZBW7VGATAM6J · pith_short_16: ZBW7VGATAM6JCGP5 · pith_short_8: ZBW7VGAT

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/ZBW7VGATAM6JCGP5F2YYUIKK7N \
  | 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: c86dfa9813033c9119fd2eb18a214afb4040e49a0bdeaeb3ce7a6bfe23dcb027

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8cf2465cfcd8c0592d4443a6243f801aabfdf52c0dcc697d1cecda810ba283ad",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2007-01-05T01:15:55Z",
    "title_canon_sha256": "ed30dc77983cdbf06bd3dec220405d5ef8882e034870c8871172bad4ff2e6183"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0701121",
    "kind": "arxiv",
    "version": 1
  }
}