Pith Number

pith:EFYCA3SS

pith:2001:EFYCA3SSZTCUZYI62XCEGKMA54

not attested not anchored not stored refs pending

How Did Globular Clusters Form?

Sidney van den Bergh

arxiv:astro-ph/0108298 v1 · 2001-08-17 · 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{EFYCA3SSZTCUZYI62XCEGKMA54}

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	2026-05-18T04:29:05.226118Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2170206e52ccc54ce11ed5c4432980ef12aeb0c7af7355b15b276feb8be14372

Aliases

arxiv: astro-ph/0108298 · arxiv_version: astro-ph/0108298v1 · doi: 10.48550/arxiv.astro-ph/0108298 · pith_short_12: EFYCA3SSZTCU · pith_short_16: EFYCA3SSZTCUZYI6 · pith_short_8: EFYCA3SS

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/EFYCA3SSZTCUZYI62XCEGKMA54 \
  | 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: 2170206e52ccc54ce11ed5c4432980ef12aeb0c7af7355b15b276feb8be14372

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b616ff348a54c65ee87358a5c01ad08ed08baae307d5b299c4f6d91ff8b709db",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2001-08-17T19:09:53Z",
    "title_canon_sha256": "228b53e7a4fb6aae5ddd9baf165ec57668e61a77ec0d07475ab29c136214d542"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0108298",
    "kind": "arxiv",
    "version": 1
  }
}