Pith Number

pith:F52N43KL

pith:2019:F52N43KLCD5OAJ6JR222M5X4CQ

not attested not anchored not stored refs pending

Nonlinear Reconstruction of the Velocity Field

Hong-Ming Zhu, Yu Yu

arxiv:1908.08217 v2 · 2019-08-22 · 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{F52N43KLCD5OAJ6JR222M5X4CQ}

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.

Cited by

1 paper in Pith

Fast(er)PM and Moving Mesh: JAX-native Geometric Multigrid Methods

Receipt and verification

First computed	2026-07-05T00:28:52.196962Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2f74de6d4b10fae027c98eb5a676fc1422388ef3ac3879b1befbe9a01b925d37

Aliases

arxiv: 1908.08217 · arxiv_version: 1908.08217v2 · doi: 10.48550/arxiv.1908.08217 · pith_short_12: F52N43KLCD5O · pith_short_16: F52N43KLCD5OAJ6J · pith_short_8: F52N43KL

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/F52N43KLCD5OAJ6JR222M5X4CQ \
  | 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: 2f74de6d4b10fae027c98eb5a676fc1422388ef3ac3879b1befbe9a01b925d37

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0ef69b975bed32eac0ab0f3971eeb34430e78593fc0c039026ac654188ca4e9a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2019-08-22T06:22:16Z",
    "title_canon_sha256": "47900541a13ab4ce95ab2ce827d771ccda8ec01e44030ead71c5c0e8dd862fdf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.08217",
    "kind": "arxiv",
    "version": 2
  }
}