Pith Number

pith:6HY32IRU

pith:2009:6HY32IRUYP6DMWW7BPPLALKSI5

not attested not anchored not stored refs pending

The Young Stellar Population of IC1613. I. A New Catalogue of OB Associations

2), (2) ULL, 3), (3) IAA, (4) UDG), A. Herrero (1, A. Rosenberg (1), B. Vicente (1, L. J. Corral (4), M. Garcia (1), M. Monelli (1). ((1) IAC, N. Castro (1

arxiv:0904.4455 v1 · 2009-04-28 · 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{6HY32IRUYP6DMWW7BPPLALKSI5}

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	2026-05-18T02:13:56.550205Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f1f1bd2234c3fc365adf0bdeb02d52477c7833b2eeb1ff5f18e17690b09e85cf

Aliases

arxiv: 0904.4455 · arxiv_version: 0904.4455v1 · doi: 10.48550/arxiv.0904.4455 · pith_short_12: 6HY32IRUYP6D · pith_short_16: 6HY32IRUYP6DMWW7 · pith_short_8: 6HY32IRU

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/6HY32IRUYP6DMWW7BPPLALKSI5 \
  | 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: f1f1bd2234c3fc365adf0bdeb02d52477c7833b2eeb1ff5f18e17690b09e85cf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "44b7d073a00e836ffafdf5b49fce896c450b2c24f6402483b2a0e36a8104a13b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2009-04-28T18:07:43Z",
    "title_canon_sha256": "50219c167b856662170655f05945ee29b723c8866393a3edebb62df5e9034504"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0904.4455",
    "kind": "arxiv",
    "version": 1
  }
}