Pith Number

pith:YYG3QQHV

pith:2014:YYG3QQHVY2QIYS6LD572PFI4YP

not attested not anchored not stored refs pending

Reproducing the Kinematics of Damped Lyman-alpha Systems

Lars Hernquist, Marcel Neeleman, Mark Vogelsberger, Martin Haehnelt, Shy Genel, Simeon Bird

arxiv:1407.7858 v2 · 2014-07-29 · astro-ph.GA · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{YYG3QQHVY2QIYS6LD572PFI4YP}

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	2026-05-18T02:29:54.900509Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c60db840f5c6a08c4bcb1f7fa7951cc3d0b35688606e20fdfeb8a5a213c65931

Aliases

arxiv: 1407.7858 · arxiv_version: 1407.7858v2 · doi: 10.48550/arxiv.1407.7858 · pith_short_12: YYG3QQHVY2QI · pith_short_16: YYG3QQHVY2QIYS6L · pith_short_8: YYG3QQHV

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/YYG3QQHVY2QIYS6LD572PFI4YP \
  | 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: c60db840f5c6a08c4bcb1f7fa7951cc3d0b35688606e20fdfeb8a5a213c65931

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ff7d403ef2384f3b2cb358cd0c0f6a2f7839686a57ab99e03f3c2df51efc9fc4",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2014-07-29T20:00:04Z",
    "title_canon_sha256": "424c2227dbffc2aadd98b484e9cb7e7d228f759c823f4fd53ac6a4f8b4e50aa1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1407.7858",
    "kind": "arxiv",
    "version": 2
  }
}