Pith Number

pith:NVRPMLYH

pith:2011:NVRPMLYHTO3XHX4DDJKN4AVUHA

not attested not anchored not stored refs pending

An Unexpected Discovery in the Rich Open Cluster NGC 6819 Using XMM-Newton

Aaron M. Geller, David Pooley, Enrico Ramirez-Ruiz, Jason Kalirai, Natalie M. Gosnell, Peter Frinchaboy, Robert D. Mathieu

arxiv:1111.6589 v1 · 2011-11-28 · 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{NVRPMLYHTO3XHX4DDJKN4AVUHA}

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	2026-05-18T01:59:22.715846Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6d62f62f079bb773df831a54de02b4381d78ba2661e954eb0b2843164baf6c4a

Aliases

arxiv: 1111.6589 · arxiv_version: 1111.6589v1 · doi: 10.48550/arxiv.1111.6589 · pith_short_12: NVRPMLYHTO3X · pith_short_16: NVRPMLYHTO3XHX4D · pith_short_8: NVRPMLYH

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/NVRPMLYHTO3XHX4DDJKN4AVUHA \
  | 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: 6d62f62f079bb773df831a54de02b4381d78ba2661e954eb0b2843164baf6c4a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "145c00f70a61ca5d53ac3a8b3ef154e8b1ee90ae90fda9b5d80e7143cbfa7b7e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2011-11-28T21:00:03Z",
    "title_canon_sha256": "45e0cbb1eae3d927a03194bf2cb4b93e9ad7c2d35f7dffd001393f18e0ac4a95"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1111.6589",
    "kind": "arxiv",
    "version": 1
  }
}