Pith Number

pith:E54PV2OS

pith:2014:E54PV2OSZG6HEPGPGU3UIYD3GK

not attested not anchored not stored refs pending

Two algorithms for compressed sensing of sparse tensors

Dan Schonfeld, Edgar A. Bernal, Qun Li, Shmuel Friedland

arxiv:1404.1506 v2 · 2014-04-05 · 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{E54PV2OSZG6HEPGPGU3UIYD3GK}

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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	2026-05-18T02:43:45.219270Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2778fae9d2c9bc723ccf353744607b32b5ee8ffd2030f260dbf0e2bc50a4cfa4

Aliases

arxiv: 1404.1506 · arxiv_version: 1404.1506v2 · doi: 10.48550/arxiv.1404.1506 · pith_short_12: E54PV2OSZG6H · pith_short_16: E54PV2OSZG6HEPGP · pith_short_8: E54PV2OS

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/E54PV2OSZG6HEPGPGU3UIYD3GK \
  | 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: 2778fae9d2c9bc723ccf353744607b32b5ee8ffd2030f260dbf0e2bc50a4cfa4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "51c960f8f250ef4959732a791a9bedca31f0955973255630905f21838d115a80",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2014-04-05T19:08:17Z",
    "title_canon_sha256": "41ae9bb6359dba8dc518376f6d4f6877baae04bedbb824351004cf90215215ff"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1404.1506",
    "kind": "arxiv",
    "version": 2
  }
}