Pith Number

pith:GR7Q6HHJ

pith:2009:GR7Q6HHJUKOF4TGTSABJPAUUA7

not attested not anchored not stored refs pending

Galaxy Formation In The Reionization Epoch As Hinted By Wide Field Camera 3 Observations Of The Hubble Ultra Deep Field

Haojing Yan, Nimish Hathi, Patrick McCarthy, Robert O'Connell, Rogier Windhorst, Russell Ryan, Seth Cohen

arxiv:0910.0077 v3 · 2009-10-01 · 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{GR7Q6HHJUKOF4TGTSABJPAUUA7}

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	2026-05-18T02:34:20.567991Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

347f0f1ce9a29c5e4cd3900297829407e3bec03a8868c585d76c0aab35eec1f7

Aliases

arxiv: 0910.0077 · arxiv_version: 0910.0077v3 · doi: 10.48550/arxiv.0910.0077 · pith_short_12: GR7Q6HHJUKOF · pith_short_16: GR7Q6HHJUKOF4TGT · pith_short_8: GR7Q6HHJ

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/GR7Q6HHJUKOF4TGTSABJPAUUA7 \
  | 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: 347f0f1ce9a29c5e4cd3900297829407e3bec03a8868c585d76c0aab35eec1f7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c37bc30f95861f6b2090b488d9110001fff530d8e49131a066fde9de9e44958d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-10-01T17:52:44Z",
    "title_canon_sha256": "4a6f31bbbdaabc11c7a9d9da540aaf95168d173c20f33ac150642798856a6358"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0910.0077",
    "kind": "arxiv",
    "version": 3
  }
}