Pith Number

pith:2RA4P3P4

pith:2018:2RA4P3P4U5I46F2OL6AYWT2D3N

not attested not anchored not stored refs pending

Multichannel reconstruction from nonuniform samples with application to image recovery

Dong Cheng, Kit Ian Kou

arxiv:1901.01102 v1 · 2018-12-05 · math.CA · cs.NA · eess.IV · math.NA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2RA4P3P4U5I46F2OL6AYWT2D3N}

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	2026-07-05T09:51:19.472708Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d441c7edfca751cf174e5f818b4f43db54b8416d8e2a5451fbf5bb6f39f1eb1b

Aliases

arxiv: 1901.01102 · arxiv_version: 1901.01102v1 · doi: 10.48550/arxiv.1901.01102 · pith_short_12: 2RA4P3P4U5I4 · pith_short_16: 2RA4P3P4U5I46F2O · pith_short_8: 2RA4P3P4

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/2RA4P3P4U5I46F2OL6AYWT2D3N \
  | 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: d441c7edfca751cf174e5f818b4f43db54b8416d8e2a5451fbf5bb6f39f1eb1b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "700ad4f87918c8476c878f7f785b86a78210bafcdadf6f2e75c146bbd0203659",
    "cross_cats_sorted": [
      "cs.NA",
      "eess.IV",
      "math.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CA",
    "submitted_at": "2018-12-05T04:38:16Z",
    "title_canon_sha256": "711cd7809065653b55fdf9cfd9fb2437960c8394c6d31eedf915cb751dfc30d1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.01102",
    "kind": "arxiv",
    "version": 1
  }
}