Pith Number

pith:2554K4S3

pith:2013:2554K4S3UEHCNEG7YXDFMWUHHJ

not attested not anchored not stored refs pending

Spread spectrum compressed sensing MRI using chirp radio frequency pulses

Di Guo, Xiaobo Qu, Xiaoxing Zhuang, Ying Chen, Zhiyu Yan, Zhong Chen

arxiv:1301.5451 v1 · 2013-01-23 · cs.CV · math.OC · physics.med-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2554K4S3UEHCNEG7YXDFMWUHHJ}

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	2026-05-18T01:22:03.587733Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d77bc5725ba10e2690dfc5c6565a873a55a5b089968b37246a948fd85b85f341

Aliases

arxiv: 1301.5451 · arxiv_version: 1301.5451v1 · doi: 10.48550/arxiv.1301.5451 · pith_short_12: 2554K4S3UEHC · pith_short_16: 2554K4S3UEHCNEG7 · pith_short_8: 2554K4S3

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/2554K4S3UEHCNEG7YXDFMWUHHJ \
  | 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: d77bc5725ba10e2690dfc5c6565a873a55a5b089968b37246a948fd85b85f341

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5b9b541921cc07ec1f9d5ca97451d51a42007a22b4c9ce77d35d66d6988a5be8",
    "cross_cats_sorted": [
      "math.OC",
      "physics.med-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2013-01-23T09:59:38Z",
    "title_canon_sha256": "80f8221e5975654e8f9250b73e0402ca424c186c79312dca0ab8d95206286b96"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1301.5451",
    "kind": "arxiv",
    "version": 1
  }
}