Pith Number

pith:7DRKQOFD

pith:2019:7DRKQOFDT3YACVL5BF64IGXCDZ

not attested not anchored not stored refs pending

Bayesian Smoothing for the Extended Object Random Matrix Model

Jakob Bramst{\aa}ng, Karl Granstr\"om

arxiv:1901.05301 v1 · 2019-01-11 · eess.SP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7DRKQOFDT3YACVL5BF64IGXCDZ}

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	2026-05-17T23:39:55.277409Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f8e2a838a39ef001557d097dc41ae21e586c46d823cd7d57defbd8022af44caa

Aliases

arxiv: 1901.05301 · arxiv_version: 1901.05301v1 · doi: 10.48550/arxiv.1901.05301 · pith_short_12: 7DRKQOFDT3YA · pith_short_16: 7DRKQOFDT3YACVL5 · pith_short_8: 7DRKQOFD

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/7DRKQOFDT3YACVL5BF64IGXCDZ \
  | 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: f8e2a838a39ef001557d097dc41ae21e586c46d823cd7d57defbd8022af44caa

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0dbcea064f6807ec001a90e02c74f55197c0aed6ea126ba706351c2fb0cbbcec",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "eess.SP",
    "submitted_at": "2019-01-11T10:04:56Z",
    "title_canon_sha256": "81f85358d170b8d19473c533785a5ea87f90a089b699e5358dbc9945631e3f79"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.05301",
    "kind": "arxiv",
    "version": 1
  }
}