Pith Number

pith:NMNMIGP3

pith:2011:NMNMIGP3YPWUAK6DTGYWKPZUCB

not attested not anchored not stored refs pending

A WFC3 study of globular clusters in NGC 4150 - an early-type minor merger

Bradley C. Whitmore, Daniela Calzetti, Jay A. Frogel, Joseph Silk, Marina Rejkuba, Max Mutchler, R. Mark Crockett, Robert W. O'Connell, Rogier A. Windhorst, Sugata Kaviraj, Sukyoung Yi

arxiv:1107.5042 v1 · 2011-07-25 · astro-ph.CO · astro-ph.IM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NMNMIGP3YPWUAK6DTGYWKPZUCB}

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	2026-05-18T02:01:10.288051Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6b1ac419fbc3ed402bc399b1653f341047841214c8e4cc189dbf645ece5d6851

Aliases

arxiv: 1107.5042 · arxiv_version: 1107.5042v1 · doi: 10.48550/arxiv.1107.5042 · pith_short_12: NMNMIGP3YPWU · pith_short_16: NMNMIGP3YPWUAK6D · pith_short_8: NMNMIGP3

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/NMNMIGP3YPWUAK6DTGYWKPZUCB \
  | 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: 6b1ac419fbc3ed402bc399b1653f341047841214c8e4cc189dbf645ece5d6851

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8f51cae3a76275ee78a54a18e020d6343c0081266ff6bd795d6b4dc7f12fc773",
    "cross_cats_sorted": [
      "astro-ph.IM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2011-07-25T20:00:02Z",
    "title_canon_sha256": "f721f7e9bb3d8ac80e1a4630b522475f323435f285e1c49b86d5cdcd4ffe32ea"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1107.5042",
    "kind": "arxiv",
    "version": 1
  }
}