Pith Number

pith:YS6Z2PYW

pith:2017:YS6Z2PYWDAYOO4OUAYPGF5M7M6

not attested not anchored not stored refs pending

Off-the-grid Two-Dimensional Line Spectral Estimation With Prior Information

Farzan Haddadi, Hamid Fathi, Iman Valiulahi, Sajad Daei

arxiv:1704.06922 v1 · 2017-04-23 · 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{YS6Z2PYWDAYOO4OUAYPGF5M7M6}

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	2026-05-18T00:45:55.333880Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c4bd9d3f161830e771d4061e62f59f67bd4f9fa0a116179117960dfa2ff8a1d0

Aliases

arxiv: 1704.06922 · arxiv_version: 1704.06922v1 · doi: 10.48550/arxiv.1704.06922 · pith_short_12: YS6Z2PYWDAYO · pith_short_16: YS6Z2PYWDAYOO4OU · pith_short_8: YS6Z2PYW

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/YS6Z2PYWDAYOO4OUAYPGF5M7M6 \
  | 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: c4bd9d3f161830e771d4061e62f59f67bd4f9fa0a116179117960dfa2ff8a1d0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "07ade5cb38840e22f15c9c6fa521de5ef238073bde813cb23d750e17580ca6a7",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2017-04-23T13:53:49Z",
    "title_canon_sha256": "a57cf6d0f98735ba3c1569fb05b460af2d5cd0ca150578b08ea42a196f311bf5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1704.06922",
    "kind": "arxiv",
    "version": 1
  }
}