Pith Number

pith:UX2QUGN3

pith:2011:UX2QUGN3SSZ6W4YT6KIMMKC75A

not attested not anchored not stored refs pending

Two fossil groups of galaxies at z~0.4 in the COSMOS: accelerated stellar-mass build-up, different progenitors

A. Finoguenov, A. M. Koekemoer, D. Pierini, E. D'Onghia, F. G. Braglia, F. Ziparo, G. W. Pratt, H. Boehringer, J. Democles, M. Pannella, M. Salvato, M. Verdugo, S. Giodini, S. Zibetti, the COSMOS Collaboration

arxiv:1107.3986 v1 · 2011-07-20 · 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{UX2QUGN3SSZ6W4YT6KIMMKC75A}

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	2026-05-18T02:01:14.269473Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a5f50a19bb94b3eb7313f290c6285fe8049515021453665e418fad4fabfdb2e9

Aliases

arxiv: 1107.3986 · arxiv_version: 1107.3986v1 · doi: 10.48550/arxiv.1107.3986 · pith_short_12: UX2QUGN3SSZ6 · pith_short_16: UX2QUGN3SSZ6W4YT · pith_short_8: UX2QUGN3

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/UX2QUGN3SSZ6W4YT6KIMMKC75A \
  | 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: a5f50a19bb94b3eb7313f290c6285fe8049515021453665e418fad4fabfdb2e9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0700e9a0ac1be30ee6499d5bf03b00e35ebd48f9e033dbcfef95b2fbb990d84c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2011-07-20T14:10:20Z",
    "title_canon_sha256": "a563a4c5ac64d72778573b25162180502f42287f4b35eb92105199fbb39d4f8f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1107.3986",
    "kind": "arxiv",
    "version": 1
  }
}