Pith Number

pith:FK6Y7KWN

pith:2011:FK6Y7KWN5FQAPEAZRXJICYULGU

not attested not anchored not stored refs pending

Sparse Recovery with Graph Constraints: Fundamental Limits and Measurement Construction

Ao Tang, Enrique Mallada, Meng Wang, Weiyu Xu

arxiv:1108.0443 v1 · 2011-08-01 · cs.IT · cs.NI · 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{FK6Y7KWN5FQAPEAZRXJICYULGU}

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	2026-05-18T04:16:30.441108Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2abd8faacde9600790198dd281628b353f7a915771207d11264a5673ea74cf0a

Aliases

arxiv: 1108.0443 · arxiv_version: 1108.0443v1 · doi: 10.48550/arxiv.1108.0443 · pith_short_12: FK6Y7KWN5FQA · pith_short_16: FK6Y7KWN5FQAPEAZ · pith_short_8: FK6Y7KWN

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/FK6Y7KWN5FQAPEAZRXJICYULGU \
  | 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: 2abd8faacde9600790198dd281628b353f7a915771207d11264a5673ea74cf0a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a0b2a5b19f5cf9897d7198a9cb55b3d5d8e21c699ac24aa867e88073ab741e26",
    "cross_cats_sorted": [
      "cs.NI",
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2011-08-01T22:09:23Z",
    "title_canon_sha256": "907b7a5543e82b8f80b2cd58c53ceed235d98866e0e9e5de2955f0fc871609f5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1108.0443",
    "kind": "arxiv",
    "version": 1
  }
}