Pith Number

pith:3VJAAKN5

pith:1999:3VJAAKN5QLLRJPZFB6KGXULMBJ

not attested not anchored not stored refs pending

Galactic Globular Cluster Relative Ages

2), (2) OAPD, (3) Universita' di Padova, (4) IAC), A. Aparicio (4) ((1) TNG, A. Rosenberg (1, G. Piotto (3), I. Saviane (3)

arxiv:astro-ph/9907394 v1 · 1999-07-28 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{3VJAAKN5QLLRJPZFB6KGXULMBJ}

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	2026-07-04T16:11:28.465040Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dd520029bd82d714bf250f946bd16c0a4d33a91bfcbc9b19f2b37d99aedaf1de

Aliases

arxiv: astro-ph/9907394 · arxiv_version: astro-ph/9907394v1 · doi: 10.48550/arxiv.astro-ph/9907394 · pith_short_12: 3VJAAKN5QLLR · pith_short_16: 3VJAAKN5QLLRJPZF · pith_short_8: 3VJAAKN5

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/3VJAAKN5QLLRJPZFB6KGXULMBJ \
  | 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: dd520029bd82d714bf250f946bd16c0a4d33a91bfcbc9b19f2b37d99aedaf1de

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1e27de019a83849952a6ffa9ebdd90ea65856c3eaec0c68a7349eae5cb07d4e5",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1999-07-28T14:14:35Z",
    "title_canon_sha256": "fc37f87ac1e7349d3cb0a28084fcbef7dd77f83bc6756b663a34cd83236fcde9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9907394",
    "kind": "arxiv",
    "version": 1
  }
}