Pith Number

pith:EWS4P3HI

pith:2015:EWS4P3HILCLA2PYJV7ZIITXCIP

not attested not anchored not stored refs pending

Observer design for position and velocity bias estimation from a single direction output

Claude Samson, Florent Le Bras, Robert Mahony, Tarek Hamel

arxiv:1503.07680 v1 · 2015-03-26 · 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{EWS4P3HILCLA2PYJV7ZIITXCIP}

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	2026-05-18T02:20:19.046468Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

25a5c7ece858960d3f09aff2844ee243f25cb48cf4717be67d22171ee9619aec

Aliases

arxiv: 1503.07680 · arxiv_version: 1503.07680v1 · doi: 10.48550/arxiv.1503.07680 · pith_short_12: EWS4P3HILCLA · pith_short_16: EWS4P3HILCLA2PYJ · pith_short_8: EWS4P3HI

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/EWS4P3HILCLA2PYJV7ZIITXCIP \
  | 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: 25a5c7ece858960d3f09aff2844ee243f25cb48cf4717be67d22171ee9619aec

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c838b59df9170338add9afef3b7d81882cceef5414265f5f1b02e2fd2b99c08d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SY",
    "submitted_at": "2015-03-26T10:40:59Z",
    "title_canon_sha256": "52419bf5b741b50b3c1c2e35d98d4dfa59cfb5c50719cdda733e90f023e98a60"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1503.07680",
    "kind": "arxiv",
    "version": 1
  }
}