Pith Number

pith:FY5WYFVW

pith:2011:FY5WYFVWS6LMRWXVJC3P3UGWAU

not attested not anchored not stored refs pending

Evidence for Two Phases of Galaxy Formation from Radial Trends in the Globular Cluster System of NGC 1407

Aaron Romanowsky, Caroline Foster, Duncan Forbes, Jay Strader, Jean Brodie, Lee Spitler

arxiv:1101.3575 v1 · 2011-01-18 · astro-ph.CO · astro-ph.GA

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FY5WYFVWS6LMRWXVJC3P3UGWAU}

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	2026-05-18T02:03:26.613942Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2e3b6c16b69796c8daf548b6fdd0d6052f88495e7661788970606eaba2cdc59d

Aliases

arxiv: 1101.3575 · arxiv_version: 1101.3575v1 · doi: 10.48550/arxiv.1101.3575 · pith_short_12: FY5WYFVWS6LM · pith_short_16: FY5WYFVWS6LMRWXV · pith_short_8: FY5WYFVW

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/FY5WYFVWS6LMRWXVJC3P3UGWAU \
  | 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: 2e3b6c16b69796c8daf548b6fdd0d6052f88495e7661788970606eaba2cdc59d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3f438c13d2fb767b14b4099fcc0b45cb7db5df58c7198cd2f9a5d8cf9dcf1dc3",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2011-01-18T22:22:50Z",
    "title_canon_sha256": "972473422a3432aea45fd65813fa95beeabf0ddceeadd80e8c753c2972d7c89f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1101.3575",
    "kind": "arxiv",
    "version": 1
  }
}