Pith Number

pith:M2GFQMCJ

pith:2014:M2GFQMCJJJZL2NLJQGWFYYNB7A

not attested not anchored not stored refs pending

A UKF-PF based Hybrid Estimation Scheme for Space Object Tracking

Dilshad Raihan A.V., Suman Chakravorty

arxiv:1409.7723 v1 · 2014-09-26 · math.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{M2GFQMCJJJZL2NLJQGWFYYNB7A}

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	2026-05-18T02:41:40.769624Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

668c5830494a72bd356981ac5c61a1f80a67acee48d7188deeeba587eb3b6258

Aliases

arxiv: 1409.7723 · arxiv_version: 1409.7723v1 · doi: 10.48550/arxiv.1409.7723 · pith_short_12: M2GFQMCJJJZL · pith_short_16: M2GFQMCJJJZL2NLJ · pith_short_8: M2GFQMCJ

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/M2GFQMCJJJZL2NLJQGWFYYNB7A \
  | 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: 668c5830494a72bd356981ac5c61a1f80a67acee48d7188deeeba587eb3b6258

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1956f31c34a74a2bcd0da9a322f1f9d5cd01e3a23b0ca942c970678ad39eae38",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DS",
    "submitted_at": "2014-09-26T20:53:53Z",
    "title_canon_sha256": "df2f8b9fb08a7c9a49919fd6a75affa9eb184fc017620dae809b884cb942ace4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1409.7723",
    "kind": "arxiv",
    "version": 1
  }
}