Pith Number

pith:XNSNTEKZ

pith:2012:XNSNTEKZA22REYKMFGYEQTJOPY

not attested not anchored not stored refs pending

Fast thresholding algorithms with feedbacks for sparse signal recovery

Shidong Li, Tiebin Mi, Yulong Liu

arxiv:1204.3700 v2 · 2012-04-17 · cs.IT · math.IT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XNSNTEKZA22REYKMFGYEQTJOPY}

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	2026-05-18T03:41:10.694232Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bb64d9915906b512614c29b0484d2e7e2b60a141687a74041e14640db85ca40c

Aliases

arxiv: 1204.3700 · arxiv_version: 1204.3700v2 · doi: 10.48550/arxiv.1204.3700 · pith_short_12: XNSNTEKZA22R · pith_short_16: XNSNTEKZA22REYKM · pith_short_8: XNSNTEKZ

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/XNSNTEKZA22REYKMFGYEQTJOPY \
  | 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: bb64d9915906b512614c29b0484d2e7e2b60a141687a74041e14640db85ca40c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "583250a93c5c14cbc6c8805048160bf18c43dac4479ee100089f7a43c29d6699",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-sa/3.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2012-04-17T04:40:22Z",
    "title_canon_sha256": "826950db88bce73e299df551b5c5f9f6f03825218c0dfac43491f20078d1caf9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1204.3700",
    "kind": "arxiv",
    "version": 2
  }
}