Pith Number

pith:HU6MGL75

pith:2008:HU6MGL75FGHVEIM574TQ22E2RP

not attested not anchored not stored refs pending

The UDF05 Follow-up of the HUDF: II. Constraints on Reionization from z-dropout Galaxies

A. M. Koekemoer, B. Mobasher, C. M. Carollo, C. M. Pavlovsky, H. C. Ferguson, Jonathan P. Gardner, L. E. Bergeron, M. Stiavelli, M. Trenti, N. Panagia, P. A. Oesch, R. A. Lucas, S. J. Lilly, S. V. W. Beckwith, T. Dahlen

arxiv:0804.4874 v2 · 2008-04-30 · 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{HU6MGL75FGHVEIM574TQ22E2RP}

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	2026-07-04T15:44:49.066646Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3d3cc32ffd298f52219dff270d689a8bdf552a79bb87b732bfe62ce6c2a81d7f

Aliases

arxiv: 0804.4874 · arxiv_version: 0804.4874v2 · doi: 10.48550/arxiv.0804.4874 · pith_short_12: HU6MGL75FGHV · pith_short_16: HU6MGL75FGHVEIM5 · pith_short_8: HU6MGL75

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/HU6MGL75FGHVEIM574TQ22E2RP \
  | 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: 3d3cc32ffd298f52219dff270d689a8bdf552a79bb87b732bfe62ce6c2a81d7f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "12de90a5b7e4e7070258fdb6ee986818243a85fbde1a2b5b4f7f153b4e499777",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph",
    "submitted_at": "2008-04-30T17:38:13Z",
    "title_canon_sha256": "f15e088a1d2d170c6ee52927d8e0b403edb966c3520118a14e45e359f7deb522"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0804.4874",
    "kind": "arxiv",
    "version": 2
  }
}