Pith Number

pith:W5V72RHD

pith:2018:W5V72RHDGSTGL6HI4R6BQNWIIH

not attested not anchored not stored refs pending

On a matrix-valued PDE characterizing a contraction metric for a periodic orbit

Peter Giesl

arxiv:1808.02691 v1 · 2018-08-08 · 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{W5V72RHDGSTGL6HI4R6BQNWIIH}

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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	2026-05-18T00:08:34.604837Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b76bfd44e334a665f8e8e47c1836c841c3d9ac051b6413d62a79e0c692e145d0

Aliases

arxiv: 1808.02691 · arxiv_version: 1808.02691v1 · doi: 10.48550/arxiv.1808.02691 · pith_short_12: W5V72RHDGSTG · pith_short_16: W5V72RHDGSTGL6HI · pith_short_8: W5V72RHD

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/W5V72RHDGSTGL6HI4R6BQNWIIH \
  | 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: b76bfd44e334a665f8e8e47c1836c841c3d9ac051b6413d62a79e0c692e145d0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "94f5181587ec41a52e64a61cef3416148f03232f89ba631fa7b523345ab7bbe2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DS",
    "submitted_at": "2018-08-08T09:36:05Z",
    "title_canon_sha256": "cb36960e1d070ca40cea6de3c718d0b7213f6b7d616d4690b4a0505c8b3a84c0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1808.02691",
    "kind": "arxiv",
    "version": 1
  }
}