Pith Number

pith:EQRZZNYK

pith:2009:EQRZZNYKRYIAF6RPADADTOZU24

not attested not anchored not stored refs pending

Galaxies at z = 6 - 9 from the WFC3/IR imaging of the HUDF

A.M. Koekemoer, D.P. Stark, E. Sabbi, J.S. Dunlop, M. Cirasuolo, R.J. Mclure, R.S. Ellis, T.A. Targett

arxiv:0909.2437 v2 · 2009-09-14 · 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{EQRZZNYKRYIAF6RPADADTOZU24}

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	2026-05-18T02:11:48.341210Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

24239cb70a8e1002fa2f00c039bb34d737eff7a0c422904970d982c3da6bdffc

Aliases

arxiv: 0909.2437 · arxiv_version: 0909.2437v2 · doi: 10.48550/arxiv.0909.2437 · pith_short_12: EQRZZNYKRYIA · pith_short_16: EQRZZNYKRYIAF6RP · pith_short_8: EQRZZNYK

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/EQRZZNYKRYIAF6RPADADTOZU24 \
  | 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: 24239cb70a8e1002fa2f00c039bb34d737eff7a0c422904970d982c3da6bdffc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "572caefca6b0a78a64ff60c514352e07d9c1243acff7b7c44bf21177bbb6fd67",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-09-14T17:44:49Z",
    "title_canon_sha256": "f7e78e8faea1de1040f6a4f9400cfad5e979e1c36856f61d6f3c701c627ba924"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0909.2437",
    "kind": "arxiv",
    "version": 2
  }
}