Pith Number

pith:UYZWBUIV

pith:2012:UYZWBUIVXBYVMKOVGEMPOYCUR7

not attested not anchored not stored refs pending

Is the Cosmic Transparency Spatially Homogeneous?

Hongwei Yu, Jun Chen, Puxun Wu, Zhengxiang Li

arxiv:1210.2805 v1 · 2012-10-10 · gr-qc · 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{UYZWBUIVXBYVMKOVGEMPOYCUR7}

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	2026-05-18T01:54:03.639949Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a63360d115b8715629d53118f760548fd00472f22fe49565841ef8ee0c19dfc4

Aliases

arxiv: 1210.2805 · arxiv_version: 1210.2805v1 · doi: 10.48550/arxiv.1210.2805 · pith_short_12: UYZWBUIVXBYV · pith_short_16: UYZWBUIVXBYVMKOV · pith_short_8: UYZWBUIV

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/UYZWBUIVXBYVMKOVGEMPOYCUR7 \
  | 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: a63360d115b8715629d53118f760548fd00472f22fe49565841ef8ee0c19dfc4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "97b8a824e68e591079b7dc5a53f8936f5feac19017e65f99e1f49fb4ba4dc79c",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2012-10-10T05:08:31Z",
    "title_canon_sha256": "79c64e3db0d5d43aa2a9e09a0aacfe3c583d01433ada1ba7c4b7dd43b0c2e2fe"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1210.2805",
    "kind": "arxiv",
    "version": 1
  }
}