Pith Number

pith:4U4T2DYH

pith:2016:4U4T2DYHAIYIWDA6J4ALKQUI5S

not attested not anchored not stored refs pending

TDOA Matrices: Algebraic Properties and their Application to Robust Denoising with Missing Data

Afsaneh Asaei, Daniel Pizarro, Javier Macias-Guarasa, Jose Velasco

arxiv:1601.04485 v2 · 2016-01-18 · 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{4U4T2DYHAIYIWDA6J4ALKQUI5S}

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	2026-05-18T01:06:20.958308Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e5393d0f0702308b0c1e4f00b54288ec8b7a5862f84e1cb85539b1fe46c16f1b

Aliases

arxiv: 1601.04485 · arxiv_version: 1601.04485v2 · doi: 10.48550/arxiv.1601.04485 · pith_short_12: 4U4T2DYHAIYI · pith_short_16: 4U4T2DYHAIYIWDA6 · pith_short_8: 4U4T2DYH

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/4U4T2DYHAIYIWDA6J4ALKQUI5S \
  | 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: e5393d0f0702308b0c1e4f00b54288ec8b7a5862f84e1cb85539b1fe46c16f1b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d61b5b3c1e43c8c106642da93f7067b9040518cfe5406a59af8a338077f1f7c5",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2016-01-18T12:01:45Z",
    "title_canon_sha256": "1dd460db48edb67976bedca20e731ce6cf807221ffd5f0781bd6f61b11056914"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1601.04485",
    "kind": "arxiv",
    "version": 2
  }
}