Pith Number

pith:2KQ6MDBY

pith:2011:2KQ6MDBYYJJZ4Q4DHMRZLTMGXI

not attested not anchored not stored refs pending

Caught in the Act: The Assembly of Massive Cluster Galaxies at z=1.62

10), (10) MPeP, 11), (11) U. of Zurich, (12) MPIA, (13) Arizona), ((1) STScI, (2) TAMU, (3) UCSC, (4) UMASS, (5) Yale, (6) U. of Missouri-Kansas City, (7) Carnegie Observatories, (8) U. of Kansas, (9) MPA, A.M. Koekemoer (1), A. Saintonge (9, A. van der Wel (12), C. Papovich (2), C. Willmer (13), D. Kocevski (3), D. McIntosh (6), G. Rudnick (8), H.C. Ferguson (1), I. Momcheva (7), J. M. Lotz (1), K-S. Lee (5), K-V. Tran (2, N. Grogin (1), S. M. Faber (3), Y. Guo (4)

arxiv:1110.3821 v1 · 2011-10-17 · 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{2KQ6MDBYYJJZ4Q4DHMRZLTMGXI}

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	2026-05-18T04:10:47.850384Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d2a1e60c38c2539e43833b2395cd86ba3801858dc47c3ce8575a3150ef2b45a7

Aliases

arxiv: 1110.3821 · arxiv_version: 1110.3821v1 · doi: 10.48550/arxiv.1110.3821 · pith_short_12: 2KQ6MDBYYJJZ · pith_short_16: 2KQ6MDBYYJJZ4Q4D · pith_short_8: 2KQ6MDBY

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/2KQ6MDBYYJJZ4Q4DHMRZLTMGXI \
  | 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: d2a1e60c38c2539e43833b2395cd86ba3801858dc47c3ce8575a3150ef2b45a7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "eb8b48757ceedf60be25b30afa704707792117ce6f3dc8826c5cf763a669762b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2011-10-17T21:00:27Z",
    "title_canon_sha256": "1e49491f14477f0233ac52c10471648b0648fd9120fe34c60b6b1d27fb13c3d6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1110.3821",
    "kind": "arxiv",
    "version": 1
  }
}