Pith Number

pith:33DIEEVD

pith:2012:33DIEEVD67445GFPAK3PNLSK6U

not attested not anchored not stored refs pending

Evolution of Group Galaxies from the First Red-Sequence Cluster Survey

B. C. Hsieh, H. K. C. Yee, I. H. Li, M. Gladders

arxiv:1202.4767 v1 · 2012-02-21 · 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{33DIEEVD67445GFPAK3PNLSK6U}

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	2026-05-18T01:58:22.669945Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dec68212a3f7f9ce98af02b6f6ae4af524f188fdf849ea66506c47aed758494a

Aliases

arxiv: 1202.4767 · arxiv_version: 1202.4767v1 · doi: 10.48550/arxiv.1202.4767 · pith_short_12: 33DIEEVD6744 · pith_short_16: 33DIEEVD67445GFP · pith_short_8: 33DIEEVD

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/33DIEEVD67445GFPAK3PNLSK6U \
  | 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: dec68212a3f7f9ce98af02b6f6ae4af524f188fdf849ea66506c47aed758494a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "998b8eb14b95322bc464709f8914146abf900396b25bb9d603990aeb42c3696f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2012-02-21T21:07:57Z",
    "title_canon_sha256": "958520fe669cc0cb0f59997f65801a21419aa24db82485415821b3abf78ebbd7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1202.4767",
    "kind": "arxiv",
    "version": 1
  }
}