Pith Number

pith:NTDXE363

pith:2004:NTDXE363ZORBRG6UMAOELOTOPN

not attested not anchored not stored refs pending

Stars in the Hubble Ultra Deep Field

A. Burgasser, A. M. Koekemoer, A. Pasquali, C. Gronwall, C. Xu, E. P. Nelan, J. E. Rhoads, J. R. Walsh, K. C. Sahu, L. A. Moustakas, N. Panagia, N. Pirzkal, R. A. Windhorst, S. Malhotra

arxiv:astro-ph/0412097 v1 · 2004-12-03 · 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{NTDXE363ZORBRG6UMAOELOTOPN}

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	2026-07-04T15:31:17.877876Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6cc7726fdbcba2189bd4601c45ba6e7b40e7c1245060c8e96ee902895066d8e5

Aliases

arxiv: astro-ph/0412097 · arxiv_version: astro-ph/0412097v1 · doi: 10.48550/arxiv.astro-ph/0412097 · pith_short_12: NTDXE363ZORB · pith_short_16: NTDXE363ZORBRG6U · pith_short_8: NTDXE363

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/NTDXE363ZORBRG6UMAOELOTOPN \
  | 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: 6cc7726fdbcba2189bd4601c45ba6e7b40e7c1245060c8e96ee902895066d8e5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0d8317461cc474c4310f7cc5359bd6c84cb17e4bb7c2c6aac22384fc0ee3bbcb",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2004-12-03T22:36:30Z",
    "title_canon_sha256": "485f513714b115c0ee08c3b5fe5efac04159cfe9eb0b95ffec50e23f0a248383"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0412097",
    "kind": "arxiv",
    "version": 1
  }
}