Pith Number

pith:J3BCL76D

pith:2019:J3BCL76D6NOCQ7V5E63PCILRVQ

not attested not anchored not stored refs pending

The dual approach to non-negative super-resolution: impact on primal reconstruction accuracy

Andrew Thompson, Bogdan Toader, Stephane Chretien

arxiv:1904.01926 v2 · 2019-04-03 · math.OC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{J3BCL76D6NOCQ7V5E63PCILRVQ}

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	2026-05-17T23:46:45.644057Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4ec225ffc3f35c287ebd27b6f12171ac2d81250e7d0f84497c8f9725aa8e952c

Aliases

arxiv: 1904.01926 · arxiv_version: 1904.01926v2 · doi: 10.48550/arxiv.1904.01926 · pith_short_12: J3BCL76D6NOC · pith_short_16: J3BCL76D6NOCQ7V5 · pith_short_8: J3BCL76D

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/J3BCL76D6NOCQ7V5E63PCILRVQ \
  | 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: 4ec225ffc3f35c287ebd27b6f12171ac2d81250e7d0f84497c8f9725aa8e952c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "24dbb4930953a4c5410b0264e1ccb4aee3c365262054b655de607421c44894c7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2019-04-03T11:36:30Z",
    "title_canon_sha256": "31e8b7aa5dfb12f74d39c48ab7489848d9518c5393b214ceb74884ab4633bb55"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.01926",
    "kind": "arxiv",
    "version": 2
  }
}