Pith Number

pith:ZVIEV3EN

pith:2009:ZVIEV3ENI6PNQKA62HZK3NRA4Q

not attested not anchored not stored refs pending

Classification of Extremely Red Objects in the COSMOS Field

2), (2) Center for Astrophysics, (3) NAOJ, China, Cosmology, Guanwen Fang (2), Japan), Min Wang (2) ((1) Key Laboratory for Research in Galaxies, Nobuo Arimoto (3), USTC, Xu Kong (1

arxiv:0908.2846 v1 · 2009-08-20 · 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{ZVIEV3ENI6PNQKA62HZK3NRA4Q}

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	2026-05-18T02:12:24.877826Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cd504aec8d479ed8281ed1f2adb620e43616aaada2eb28d6cc0def1338fb9c57

Aliases

arxiv: 0908.2846 · arxiv_version: 0908.2846v1 · doi: 10.48550/arxiv.0908.2846 · pith_short_12: ZVIEV3ENI6PN · pith_short_16: ZVIEV3ENI6PNQKA6 · pith_short_8: ZVIEV3EN

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/ZVIEV3ENI6PNQKA62HZK3NRA4Q \
  | 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: cd504aec8d479ed8281ed1f2adb620e43616aaada2eb28d6cc0def1338fb9c57

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2ee1be15309aabec496674249d1080076e6d8332dc0c2c3c4a1d9004c4826989",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-08-20T02:56:18Z",
    "title_canon_sha256": "acc0367a1086106e58fecdbd1a1c41988d38b458a0dc0590c0160f715c4d71b9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0908.2846",
    "kind": "arxiv",
    "version": 1
  }
}