Pith Number

pith:2A5G7WYM

pith:2009:2A5G7WYMU5NKP3NZAU3KXC5LM6

not attested not anchored not stored refs pending

High star formation activity in the central region of a distant cluster at z=1.46

Ichi Tanaka, Kazuhiro Shimasaku, Masao Hayashi, Sadanori Okamura, Tadayuki Kodama, Yusei Koyama

arxiv:0911.2530 v1 · 2009-11-13 · 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{2A5G7WYMU5NKP3NZAU3KXC5LM6}

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	2026-05-18T02:10:48.018352Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d03a6fdb0ca75aa7edb90536ab8bab6782b9a465fafe40a1d927dd37a7852e99

Aliases

arxiv: 0911.2530 · arxiv_version: 0911.2530v1 · doi: 10.48550/arxiv.0911.2530 · pith_short_12: 2A5G7WYMU5NK · pith_short_16: 2A5G7WYMU5NKP3NZ · pith_short_8: 2A5G7WYM

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/2A5G7WYMU5NKP3NZAU3KXC5LM6 \
  | 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: d03a6fdb0ca75aa7edb90536ab8bab6782b9a465fafe40a1d927dd37a7852e99

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9ae819fdad618301becd03347a900e8bb0d4910257f353c30228805abb712386",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-11-13T06:41:19Z",
    "title_canon_sha256": "438635ab792e469e24687c4363e464de9dd47d53fcb0e3279aa173e5b81777a0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0911.2530",
    "kind": "arxiv",
    "version": 1
  }
}