Pith Number

pith:TPFWJUY2

pith:2016:TPFWJUY27YRRLD3WLFPAJH4LPN

not attested not anchored not stored refs pending

Model Reduction from Partial Observations

A. Dr\'emeau, C. Herzet, P. H\'eas

arxiv:1609.08821 v3 · 2016-09-28 · math.NA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{TPFWJUY27YRRLD3WLFPAJH4LPN}

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	2026-05-18T00:41:07.839331Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9bcb64d31afe23158f76595e049f8b7b5cfd92fb2d318239e211fa949382bfa2

Aliases

arxiv: 1609.08821 · arxiv_version: 1609.08821v3 · doi: 10.48550/arxiv.1609.08821 · pith_short_12: TPFWJUY27YRR · pith_short_16: TPFWJUY27YRRLD3W · pith_short_8: TPFWJUY2

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/TPFWJUY27YRRLD3WLFPAJH4LPN \
  | 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: 9bcb64d31afe23158f76595e049f8b7b5cfd92fb2d318239e211fa949382bfa2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7142e89700a38c373bf339f4ca80e15ce226441a2377c8b9453ef2c3b753b2a3",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2016-09-28T08:47:54Z",
    "title_canon_sha256": "dcc7d8c0deebf89531b325dc315c9009f049494f754aeb4db6b6af75d9cd5959"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1609.08821",
    "kind": "arxiv",
    "version": 3
  }
}