Pith Number

pith:G6TQNZY7

pith:2026:G6TQNZY7CB7KBMIODVPNKBWJDB

not attested not anchored not stored refs pending

A Data-Assimilation-Augmented Optimization Framework for Parameter Estimation in Dynamical Systems

Animikh Biswas, Kathleen Hoffman, Muhammad Jalil Ahmad

arxiv:2606.29291 v1 · 2026-06-28 · 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{G6TQNZY7CB7KBMIODVPNKBWJDB}

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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	2026-06-30T01:18:00.480222Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

37a706e71f107ea0b10e1d5ed506c91860de41095bf32f20eb8470bfba453401

Aliases

arxiv: 2606.29291 · arxiv_version: 2606.29291v1 · doi: 10.48550/arxiv.2606.29291 · pith_short_12: G6TQNZY7CB7K · pith_short_16: G6TQNZY7CB7KBMIO · pith_short_8: G6TQNZY7

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/G6TQNZY7CB7KBMIODVPNKBWJDB \
  | 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: 37a706e71f107ea0b10e1d5ed506c91860de41095bf32f20eb8470bfba453401

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c6d1d6829768cc3d9118e7b8159fa45a3f49206993f2e8d1da79bce7a3a7bf9c",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/publicdomain/zero/1.0/",
    "primary_cat": "math.DS",
    "submitted_at": "2026-06-28T09:27:17Z",
    "title_canon_sha256": "39124fb41eee340e6f60e43bce13792936a2954b5acde26f5856411e9b596682"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.29291",
    "kind": "arxiv",
    "version": 1
  }
}