Pith Number

pith:UQND53CU

pith:2008:UQND53CUKVVEOODGI6OE4KBMLF

not attested not anchored not stored refs pending

Evolution of the First Stars with Dark Matter Burning

Fabio Iocco, Shizuka Akiyama, Sung-Chul Yoon

arxiv:0806.2662 v2 · 2008-06-17 · 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{UQND53CUKVVEOODGI6OE4KBMLF}

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	2026-05-18T04:29:33.439990Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a41a3eec54556a473866479c4e282c596047586ab72fd238a73f8b42d0576c09

Aliases

arxiv: 0806.2662 · arxiv_version: 0806.2662v2 · doi: 10.48550/arxiv.0806.2662 · pith_short_12: UQND53CUKVVE · pith_short_16: UQND53CUKVVEOODG · pith_short_8: UQND53CU

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/UQND53CUKVVEOODGI6OE4KBMLF \
  | 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: a41a3eec54556a473866479c4e282c596047586ab72fd238a73f8b42d0576c09

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d00392bbc8523e6b9a2269fdb522abc70fceec07dd035ad82fb693cd6e57827f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph",
    "submitted_at": "2008-06-17T08:01:37Z",
    "title_canon_sha256": "71d97fc1309c6fec36414aa7aff3bf107841b4a0f9215a7be6441f65b984b169"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0806.2662",
    "kind": "arxiv",
    "version": 2
  }
}