Pith Number

pith:QWIV4ZUQ

pith:2016:QWIV4ZUQWOX6FEIV7MMMLLRYDQ

not attested not anchored not stored refs pending

An Improved Method to Measure the Cosmic Curvature

Jun-Jie Wei, Xue-Feng Wu

arxiv:1611.00904 v2 · 2016-11-03 · astro-ph.CO · gr-qc

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QWIV4ZUQWOX6FEIV7MMMLLRYDQ}

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	2026-05-18T00:46:39.241995Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

85915e6690b3afe29115fb18c5ae381c1b7ec1bbb18b7d5ff399fabc084cf04d

Aliases

arxiv: 1611.00904 · arxiv_version: 1611.00904v2 · doi: 10.48550/arxiv.1611.00904 · pith_short_12: QWIV4ZUQWOX6 · pith_short_16: QWIV4ZUQWOX6FEIV · pith_short_8: QWIV4ZUQ

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/QWIV4ZUQWOX6FEIV7MMMLLRYDQ \
  | 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: 85915e6690b3afe29115fb18c5ae381c1b7ec1bbb18b7d5ff399fabc084cf04d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e50e6f3627a90050a02ed886c82c60e885d362e67d598753c8d0263593adcd62",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2016-11-03T07:54:20Z",
    "title_canon_sha256": "b26d367aa1ba3078d36ee2168e1e92a041dc0c2a6a1a4d414e900b7c958931a2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1611.00904",
    "kind": "arxiv",
    "version": 2
  }
}