Pith Number

pith:IDGUG2KT

pith:2018:IDGUG2KTAN6IQLOQX64YMIYMM3

not attested not anchored not stored refs pending

Tight $H_0$ constraint from galaxy redshfit surveys: combining baryon acoustic osillation measurements and Alcock-Paczynski test

Qing-Guo Huang, Xiao-Dong Li, Xue Zhang

arxiv:1801.07403 v1 · 2018-01-23 · 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{IDGUG2KTAN6IQLOQX64YMIYMM3}

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	2026-05-17T23:59:17.722775Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

40cd436953037c882dd0bfb986230c66fbf77befb1e561794b8ca505c6e86b0a

Aliases

arxiv: 1801.07403 · arxiv_version: 1801.07403v1 · doi: 10.48550/arxiv.1801.07403 · pith_short_12: IDGUG2KTAN6I · pith_short_16: IDGUG2KTAN6IQLOQ · pith_short_8: IDGUG2KT

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/IDGUG2KTAN6IQLOQX64YMIYMM3 \
  | 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: 40cd436953037c882dd0bfb986230c66fbf77befb1e561794b8ca505c6e86b0a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ec52e4921b6ace3e77cb48ef9ad273a903b4ae349cc3a01ed12d5b219a0e8014",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2018-01-23T06:12:23Z",
    "title_canon_sha256": "4c6f81c4aca7d4da328bd6df4266da09a602914a430ff141cfb721d4962b74b8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1801.07403",
    "kind": "arxiv",
    "version": 1
  }
}