Pith Number

pith:VLEDHYK3

pith:2011:VLEDHYK3PRWENPL4CJNKNCUIUB

not attested not anchored not stored refs pending

The Role of Dust in the Early Universe I : Protogalaxy Evolution

Asao Habe, Daisuke Yamasawa, Hideyuki Umeda, Hiroyuki Hirashita, Ken'ichi Nomoto, Takashi Kozasa, Takaya Nozawa

arxiv:1104.0728 v2 · 2011-04-05 · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VLEDHYK3PRWENPL4CJNKNCUIUB}

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	2026-05-18T02:02:38.089511Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

aac833e15b7c6c46bd7c125aa68a88a06ae63b9a0f22094d81c33770c9ab3d0c

Aliases

arxiv: 1104.0728 · arxiv_version: 1104.0728v2 · doi: 10.48550/arxiv.1104.0728 · pith_short_12: VLEDHYK3PRWE · pith_short_16: VLEDHYK3PRWENPL4 · pith_short_8: VLEDHYK3

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/VLEDHYK3PRWENPL4CJNKNCUIUB \
  | 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: aac833e15b7c6c46bd7c125aa68a88a06ae63b9a0f22094d81c33770c9ab3d0c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2fa99b8a600242fac9e9bcb7b2826be22f2d81194cdd35e6a21b6c3c07c8b7ea",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2011-04-05T04:23:01Z",
    "title_canon_sha256": "82b94f79ef24d24c58b372acd2a8556df39044f9d5c5435c8b2fdd45696f3882"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1104.0728",
    "kind": "arxiv",
    "version": 2
  }
}