Pith Number

pith:YHR67ZAS

pith:2019:YHR67ZASCIXUH3MOXWBZDV4QQG

not attested not anchored not stored refs pending

Input-output equations and identifiability of linear ODE models

Alexey Ovchinnikov, Gleb Pogudin, Peter Thompson

arxiv:1910.03960 v5 · 2019-10-09 · math.DS · cs.SC · cs.SY · eess.SY · math.AC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{YHR67ZASCIXUH3MOXWBZDV4QQG}

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	2026-07-05T03:51:53.205514Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c1e3efe412122f43ed8ebd8391d790819ec08dc4188649cb526a4246985d1624

Aliases

arxiv: 1910.03960 · arxiv_version: 1910.03960v5 · doi: 10.48550/arxiv.1910.03960 · pith_short_12: YHR67ZASCIXU · pith_short_16: YHR67ZASCIXUH3MO · pith_short_8: YHR67ZAS

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/YHR67ZASCIXUH3MOXWBZDV4QQG \
  | 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: c1e3efe412122f43ed8ebd8391d790819ec08dc4188649cb526a4246985d1624

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "884f265ff1810633ffae36db9f6ac46eec2e5c5d5fe01962e426d2e7ec6fe5e8",
    "cross_cats_sorted": [
      "cs.SC",
      "cs.SY",
      "eess.SY",
      "math.AC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DS",
    "submitted_at": "2019-10-09T12:53:23Z",
    "title_canon_sha256": "8465b5a745037d73f8cf8ffdc469d497f7846a0c322e334cc7efd8b62ca97f9a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1910.03960",
    "kind": "arxiv",
    "version": 5
  }
}