Pith Number

pith:A2VT2I7P

pith:2018:A2VT2I7PA2GGYYJRJQIOXEFNUP

not attested not anchored not stored refs pending

Observability and Structural Identifiability of Nonlinear Biological Systems

Alejandro F. Villaverde

arxiv:1812.04525 v1 · 2018-12-11 · q-bio.QM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{A2VT2I7PA2GGYYJRJQIOXEFNUP}

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	2026-05-17T23:58:31.787695Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

06ab3d23ef068c6c61314c10eb90ada3d9c100337f861157922daca549e51dc7

Aliases

arxiv: 1812.04525 · arxiv_version: 1812.04525v1 · doi: 10.48550/arxiv.1812.04525 · pith_short_12: A2VT2I7PA2GG · pith_short_16: A2VT2I7PA2GGYYJR · pith_short_8: A2VT2I7P

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/A2VT2I7PA2GGYYJRJQIOXEFNUP \
  | 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: 06ab3d23ef068c6c61314c10eb90ada3d9c100337f861157922daca549e51dc7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7583ea3f92e380c2f405c306dc5923e5ea9cba39a9d88e5f70d4de9ab21253d0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "q-bio.QM",
    "submitted_at": "2018-12-11T16:30:10Z",
    "title_canon_sha256": "768642d98e86f11baff6b7817b0764c20f5dd76d9d1107eeb58c561f1ae2f2f1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1812.04525",
    "kind": "arxiv",
    "version": 1
  }
}