Pith Number

pith:CDSYTS7A

pith:2017:CDSYTS7ABGP3JEB3H4CFQNGDA4

not attested not anchored not stored refs pending

The Onsager--Machlup functional for data assimilation

Nozomi Sugiura

arxiv:1703.06663 v5 · 2017-03-20 · physics.data-an

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{CDSYTS7ABGP3JEB3H4CFQNGDA4}

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	2026-05-18T00:29:05.742482Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

10e589cbe0099fb4903b3f045834c3072aa030cba885a4c22a1b35c4d1091585

Aliases

arxiv: 1703.06663 · arxiv_version: 1703.06663v5 · doi: 10.48550/arxiv.1703.06663 · pith_short_12: CDSYTS7ABGP3 · pith_short_16: CDSYTS7ABGP3JEB3 · pith_short_8: CDSYTS7A

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/CDSYTS7ABGP3JEB3H4CFQNGDA4 \
  | 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: 10e589cbe0099fb4903b3f045834c3072aa030cba885a4c22a1b35c4d1091585

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c53c386b464778f7d889c14a7799ceace1f6f9d6d584a790f89a2e25efdd24a1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.data-an",
    "submitted_at": "2017-03-20T10:49:35Z",
    "title_canon_sha256": "a9a21983b4975eebe91552387f8670d6ef3c9955e40f69f2ecb540df261aa525"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1703.06663",
    "kind": "arxiv",
    "version": 5
  }
}