Pith Number

pith:H2L4RMZZ

pith:2010:H2L4RMZZCIFBYR3T46QFEEM5DW

not attested not anchored not stored refs pending

The Dawn of the Red: Star formation histories of group galaxies over the past 5 billion years

2), (2) Durham, (3) MPE, (4) OCIW, (5) McMaster), Augustus Oemler Jr. (4) ((1) Waterloo, David J. Wilman (3), John S. Mulchaey (4), Laura C. Parker (5), Michael L. Balogh (1), Richard G. Bower (2), Sean L. McGee (1

arxiv:1012.2388 v1 · 2010-12-10 · 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{H2L4RMZZCIFBYR3T46QFEEM5DW}

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	2026-05-18T02:04:30.277499Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3e97c8b339120a1c4773e7a052119d1d99c70b5583e8ba5a4e911226a7f83899

Aliases

arxiv: 1012.2388 · arxiv_version: 1012.2388v1 · doi: 10.48550/arxiv.1012.2388 · pith_short_12: H2L4RMZZCIFB · pith_short_16: H2L4RMZZCIFBYR3T · pith_short_8: H2L4RMZZ

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/H2L4RMZZCIFBYR3T46QFEEM5DW \
  | 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: 3e97c8b339120a1c4773e7a052119d1d99c70b5583e8ba5a4e911226a7f83899

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "83d51cd5146f8a475d7f6269706b85e60d365c9c4ec7098870485c53d793b1be",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2010-12-10T21:05:49Z",
    "title_canon_sha256": "531c9b3111b905de842643eff17fc406b570b48072260e25f42e6c582d1b03c8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1012.2388",
    "kind": "arxiv",
    "version": 1
  }
}