Pith Number

pith:M4A5DIXC

pith:2026:M4A5DIXCSK4SWPGOTAOPGZBX56

not attested not anchored not stored refs pending

Geometric Projection Particle Filtering under Model Uncertainty

Soumyendu Raha, Surya Ratna Prakash D

arxiv:2607.17781 v1 · 2026-07-20 · math.DS · math.OC · stat.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{M4A5DIXCSK4SWPGOTAOPGZBX56}

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	2026-07-21T02:21:59.860755Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6701d1a2e292b92b3cce981cf36437efadb3d692138e05d1f6cfb57789c06f3f

Aliases

arxiv: 2607.17781 · arxiv_version: 2607.17781v1 · doi: 10.48550/arxiv.2607.17781 · pith_short_12: M4A5DIXCSK4S · pith_short_16: M4A5DIXCSK4SWPGO · pith_short_8: M4A5DIXC

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/M4A5DIXCSK4SWPGOTAOPGZBX56 \
  | 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: 6701d1a2e292b92b3cce981cf36437efadb3d692138e05d1f6cfb57789c06f3f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f1c4371475c38b16da99d367f77212873b0bca2f729601051fc84f0fbd3a5c0e",
    "cross_cats_sorted": [
      "math.OC",
      "stat.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DS",
    "submitted_at": "2026-07-20T10:14:24Z",
    "title_canon_sha256": "a5203a0c3593455f29b4d8670214db6b647d1161dcb1e0a4ea1680fba785921a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.17781",
    "kind": "arxiv",
    "version": 1
  }
}