Pith Number

pith:JH7CYDR7

pith:2014:JH7CYDR7HDSCH4HAJNLGSTO4AY

not attested not anchored not stored refs pending

A z=2.5 protocluster associated with the radio galaxy MRC 2104-242: star formation and differing mass functions in dense environments

E. A. Cooke, E. E. Rigby, J. D. Kurk, N. A. Hatch, S. I. Muldrew

arxiv:1403.4259 v1 · 2014-03-17 · astro-ph.GA · 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{JH7CYDR7HDSCH4HAJNLGSTO4AY}

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	2026-05-18T01:44:00.273536Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

49fe2c0e3f38e423f0e04b56694ddc06239312cd6a04bce8cddf034626e97e6b

Aliases

arxiv: 1403.4259 · arxiv_version: 1403.4259v1 · doi: 10.48550/arxiv.1403.4259 · pith_short_12: JH7CYDR7HDSC · pith_short_16: JH7CYDR7HDSCH4HA · pith_short_8: JH7CYDR7

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/JH7CYDR7HDSCH4HAJNLGSTO4AY \
  | 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: 49fe2c0e3f38e423f0e04b56694ddc06239312cd6a04bce8cddf034626e97e6b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ea456c4b46b25e7c4f19b735723bc19c8114b3799a61a96bfbfd57153181acaf",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2014-03-17T20:03:55Z",
    "title_canon_sha256": "2859ca97f65a7ad1ec4826875cbc6026871955679ce640b8ad3bf17b9b438b40"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1403.4259",
    "kind": "arxiv",
    "version": 1
  }
}