Pith Number

pith:HFZ7MZBA

pith:2013:HFZ7MZBAQK2XXI6YYTOQ6NBYJK

not attested not anchored not stored refs pending

Nonlinear Compressive Particle Filtering

Henrik Ohlsson, Michel Verhaegen, S. Shankar Sastry

arxiv:1309.7315 v1 · 2013-09-08 · cs.SY

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HFZ7MZBAQK2XXI6YYTOQ6NBYJK}

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	2026-05-18T03:11:59.570493Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3973f6642082b57ba3d8c4dd0f34384a9e833b30737e0798bcebd238db5a6339

Aliases

arxiv: 1309.7315 · arxiv_version: 1309.7315v1 · doi: 10.48550/arxiv.1309.7315 · pith_short_12: HFZ7MZBAQK2X · pith_short_16: HFZ7MZBAQK2XXI6Y · pith_short_8: HFZ7MZBA

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/HFZ7MZBAQK2XXI6YYTOQ6NBYJK \
  | 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: 3973f6642082b57ba3d8c4dd0f34384a9e833b30737e0798bcebd238db5a6339

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "46a3d95dbc52d797603e5e475bd1852c71c21ec16a43445bd4c2cdd92568c826",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SY",
    "submitted_at": "2013-09-08T17:31:23Z",
    "title_canon_sha256": "9fce985d8b7cbc527587622443ce482fa0b0ec67ffc0f8b49418e934ff9b83df"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1309.7315",
    "kind": "arxiv",
    "version": 1
  }
}