Pith Number

pith:I73L2P6F

pith:2013:I73L2P6FRFESNRJDZMIJFVFBL6

not attested not anchored not stored refs pending

Phase Retrieval for Sparse Signals: Uniqueness Conditions

Amina Chebira, Juri Ranieri, Martin Vetterli, Yue M. Lu

arxiv:1308.3058 v2 · 2013-08-14 · cs.IT · math.IT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{I73L2P6FRFESNRJDZMIJFVFBL6}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T03:12:11.308862Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

47f6bd3fc5894926c523cb1092d4a15f9b9cc0c5c473962dd50ad73de5b703b3

Aliases

arxiv: 1308.3058 · arxiv_version: 1308.3058v2 · doi: 10.48550/arxiv.1308.3058 · pith_short_12: I73L2P6FRFES · pith_short_16: I73L2P6FRFESNRJD · pith_short_8: I73L2P6F

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/I73L2P6FRFESNRJDZMIJFVFBL6 \
  | 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: 47f6bd3fc5894926c523cb1092d4a15f9b9cc0c5c473962dd50ad73de5b703b3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9bad46d726cc2b70601909b00dc7a7df6579a8de75d4888f5883b9519649904f",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2013-08-14T08:26:11Z",
    "title_canon_sha256": "addad14b0bf08abf93d7d176875662ec6d2b91dee1866abd94b80fe094b3a636"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1308.3058",
    "kind": "arxiv",
    "version": 2
  }
}