Pith Number

pith:QGQIY7K5

pith:2011:QGQIY7K5CHVOINRQIFDP6G4G6Y

not attested not anchored not stored refs pending

Multiple stellar populations in the Globular Clusters NGC1851 and NGC6656 (M22)

A. F. Marino, A. P. Milone, G. Piotto, R. L. Bedin, S. Villanova, Y. Momany

arxiv:1107.2056 v2 · 2011-07-11 · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QGQIY7K5CHVOINRQIFDP6G4G6Y}

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	2026-05-18T04:18:32.895466Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

81a08c7d5d11eae436304146ff1b86f63cf439e3a3845b0d4ca760ea9a196a03

Aliases

arxiv: 1107.2056 · arxiv_version: 1107.2056v2 · doi: 10.48550/arxiv.1107.2056 · pith_short_12: QGQIY7K5CHVO · pith_short_16: QGQIY7K5CHVOINRQ · pith_short_8: QGQIY7K5

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/QGQIY7K5CHVOINRQIFDP6G4G6Y \
  | 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: 81a08c7d5d11eae436304146ff1b86f63cf439e3a3845b0d4ca760ea9a196a03

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "786c113dba46f87472219285577eb8e0199b7e9e9e628c26b44cfd65fe50ee66",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2011-07-11T15:26:12Z",
    "title_canon_sha256": "4ff281c566a203f252dbaeae9775f0b0aa24251f81c3b4ce5c046d8e16ca8641"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1107.2056",
    "kind": "arxiv",
    "version": 2
  }
}