Pith Number

pith:I33VMRSW

pith:2019:I33VMRSWA4K3JOG7X5UAXGUL2R

not attested not anchored not stored refs pending

Probing cosmic acceleration by strong gravitational lensing systems

F. Y. Wang (NJU), J. Hu, Z. L. Tu

arxiv:1901.09144 v1 · 2019-01-26 · 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{I33VMRSWA4K3JOG7X5UAXGUL2R}

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	2026-05-17T23:53:41.091638Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

46f75646560715b4b8dfbf680b9a8bd45c5379f7d9e20944289ca9bbed3a4799

Aliases

arxiv: 1901.09144 · arxiv_version: 1901.09144v1 · doi: 10.48550/arxiv.1901.09144 · pith_short_12: I33VMRSWA4K3 · pith_short_16: I33VMRSWA4K3JOG7 · pith_short_8: I33VMRSW

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/I33VMRSWA4K3JOG7X5UAXGUL2R \
  | 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: 46f75646560715b4b8dfbf680b9a8bd45c5379f7d9e20944289ca9bbed3a4799

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "80f5a7d1f2c145c5812b39942af8cab0b9b8745c61b8eeccd50bc7086b72a4d6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2019-01-26T02:27:45Z",
    "title_canon_sha256": "f52bbe8e35f707a329527b6053d6d1018068eb2e0135180d6376f75deb9262f9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.09144",
    "kind": "arxiv",
    "version": 1
  }
}