Pith Number

pith:WOMIRNXS

pith:2001:WOMIRNXSZ54BLSDPPA655XEYPQ

not attested not anchored not stored refs pending

Dynamical Masses of Young Star Clusters in NGC 4038/4039

Matthew D. Lehnert, Niranjan Thatte, Reinhard Genzel, Sabine Mengel

arxiv:astro-ph/0111560 v1 · 2001-11-29 · 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{WOMIRNXSZ54BLSDPPA655XEYPQ}

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	2026-05-18T01:07:45.247482Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b39888b6f2cf7815c86f783ddedc987c3bc95d594a1f47edea48847cd37be0df

Aliases

arxiv: astro-ph/0111560 · arxiv_version: astro-ph/0111560v1 · doi: 10.48550/arxiv.astro-ph/0111560 · pith_short_12: WOMIRNXSZ54B · pith_short_16: WOMIRNXSZ54BLSDP · pith_short_8: WOMIRNXS

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/WOMIRNXSZ54BLSDPPA655XEYPQ \
  | 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: b39888b6f2cf7815c86f783ddedc987c3bc95d594a1f47edea48847cd37be0df

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b78485f4384043eea87e6f1686e2046e8273a211b9e7b4a892c3e69e24ccd0de",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2001-11-29T16:24:38Z",
    "title_canon_sha256": "3a2e59e8f69883ff8a348d519c24280866ffe76f6f19940311575f89598a8c13"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0111560",
    "kind": "arxiv",
    "version": 1
  }
}