Pith Number

pith:NF3P6BA5

pith:2009:NF3P6BA5LK2AG5L5P45H556B52

not attested not anchored not stored refs pending

1Gyr in the Life of the Globular Cluster NGC 6397

Douglas C. Heggie, Mirek Giersz

arxiv:0904.4852 v1 · 2009-04-30 · 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{NF3P6BA5LK2AG5L5P45H556B52}

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	2026-05-18T02:13:48.759379Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6976ff041d5ab403757d7f3a7ef7c1ee94444ac252aa2318c3390128965610b1

Aliases

arxiv: 0904.4852 · arxiv_version: 0904.4852v1 · doi: 10.48550/arxiv.0904.4852 · pith_short_12: NF3P6BA5LK2A · pith_short_16: NF3P6BA5LK2AG5L5 · pith_short_8: NF3P6BA5

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/NF3P6BA5LK2AG5L5P45H556B52 \
  | 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: 6976ff041d5ab403757d7f3a7ef7c1ee94444ac252aa2318c3390128965610b1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "47643646d43b7beb3bb854ca4e8a39f0cc9456e3cf75cb01b16e6ffb144cd3ea",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2009-04-30T14:38:24Z",
    "title_canon_sha256": "d8e5dbd1218c77166b69df750aacfc270217153191bddcc836ff9dd11ceee9ff"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0904.4852",
    "kind": "arxiv",
    "version": 1
  }
}