Pith Number

pith:ZIC2ZRVE

pith:2009:ZIC2ZRVE6QULJMWGRGX3KDXZUB

not attested not anchored not stored refs pending

Evolution and appearance of Be stars in SMC clusters

Christophe Martayan (ESO-Chile, Dietrich Baade (ESO-HQ), GEPI), Jean Zorec (IAP), Yves Fremat

arxiv:0909.3915 v1 · 2009-09-22 · 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{ZIC2ZRVE6QULJMWGRGX3KDXZUB}

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	2026-05-18T02:11:45.477282Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ca05acc6a4f428b4b2c689afb50ef9a043d0452827606844f64b2443235f2653

Aliases

arxiv: 0909.3915 · arxiv_version: 0909.3915v1 · doi: 10.48550/arxiv.0909.3915 · pith_short_12: ZIC2ZRVE6QUL · pith_short_16: ZIC2ZRVE6QULJMWG · pith_short_8: ZIC2ZRVE

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/ZIC2ZRVE6QULJMWGRGX3KDXZUB \
  | 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: ca05acc6a4f428b4b2c689afb50ef9a043d0452827606844f64b2443235f2653

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4e66218dd37ffeddd7e74fd2cca7f3ad37e6b9697fe078e5103fbdeda1b81e9d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2009-09-22T06:35:59Z",
    "title_canon_sha256": "97c5e6d3e8c3395c4331df3efc5777fab1eeba152628f869f584d5ea3ff3ccfa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0909.3915",
    "kind": "arxiv",
    "version": 1
  }
}