Pith Number

pith:2Q4NTXFY

pith:2012:2Q4NTXFYOIVM4BYNMN4UQOLBEG

not attested not anchored not stored refs pending

A Multi-Wavelength Study of Low Redshift Cluster of Galaxies II. Environmental Impact on Galaxy Growth

David W. Atlee, Paul Martini

arxiv:1201.2957 v1 · 2012-01-13 · 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{2Q4NTXFYOIVM4BYNMN4UQOLBEG}

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	2026-05-18T01:58:49.381888Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d438d9dcb8722ace070d637948396121ba7720bc0fdfe4e128fc26319d9925d5

Aliases

arxiv: 1201.2957 · arxiv_version: 1201.2957v1 · doi: 10.48550/arxiv.1201.2957 · pith_short_12: 2Q4NTXFYOIVM · pith_short_16: 2Q4NTXFYOIVM4BYN · pith_short_8: 2Q4NTXFY

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/2Q4NTXFYOIVM4BYNMN4UQOLBEG \
  | 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: d438d9dcb8722ace070d637948396121ba7720bc0fdfe4e128fc26319d9925d5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2b4d68312e32851e77de19a88cb8f9d1eb05b856e7f2f2f33a63cd8a2b3db53c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2012-01-13T21:25:04Z",
    "title_canon_sha256": "41c979339287ff248da2761b48891a76b5183c8891e159243beae5e251376798"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1201.2957",
    "kind": "arxiv",
    "version": 1
  }
}