Pith Number

pith:YHRRMOOD

pith:2020:YHRRMOODEEYO4KDPPOYX4FHIVF

not attested not anchored not stored refs pending

Parameter identifiability and input-output equations

Alexey Ovchinnikov, Gleb Pogudin, Peter Thompson

arxiv:2007.14787 v2 · 2020-07-28 · math.AG · cs.SC · cs.SY · eess.SY · 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{YHRRMOODEEYO4KDPPOYX4FHIVF}

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	2026-07-05T02:02:05.224103Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c1e31639c32130ee286f7bb17e14e8a9430266dea9d0bedada0ca4e4e8958892

Aliases

arxiv: 2007.14787 · arxiv_version: 2007.14787v2 · doi: 10.48550/arxiv.2007.14787 · pith_short_12: YHRRMOODEEYO · pith_short_16: YHRRMOODEEYO4KDP · pith_short_8: YHRRMOOD

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/YHRRMOODEEYO4KDPPOYX4FHIVF \
  | 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: c1e31639c32130ee286f7bb17e14e8a9430266dea9d0bedada0ca4e4e8958892

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "46ed9340b4083aa215c264bf7bfcc775566363cf14371732eb09b90540ff3dd8",
    "cross_cats_sorted": [
      "cs.SC",
      "cs.SY",
      "eess.SY",
      "math.DS"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2020-07-28T01:16:51Z",
    "title_canon_sha256": "047ef5f631b258a9381f55f38d85561abecae169fb1d2f3d6a3a878bd01796d2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2007.14787",
    "kind": "arxiv",
    "version": 2
  }
}