Pith Number

pith:ZT7I6JZA

pith:2021:ZT7I6JZAUUSEUWZMVFQYZZXE3M

not attested not anchored not stored refs pending

Persistence and material coherence of a mesoscale ocean eddy

Gary Froyland, Michael C. Denes, Shane R. Keating

arxiv:2111.08351 v1 · 2021-11-16 · physics.flu-dyn · 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{ZT7I6JZAUUSEUWZMVFQYZZXE3M}

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	2026-07-05T03:32:33.071495Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ccfe8f2720a5244a5b2ca9618ce6e4db07ee6946699fc6d1ee7a480ebc39f362

Aliases

arxiv: 2111.08351 · arxiv_version: 2111.08351v1 · doi: 10.48550/arxiv.2111.08351 · pith_short_12: ZT7I6JZAUUSE · pith_short_16: ZT7I6JZAUUSEUWZM · pith_short_8: ZT7I6JZA

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/ZT7I6JZAUUSEUWZMVFQYZZXE3M \
  | 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: ccfe8f2720a5244a5b2ca9618ce6e4db07ee6946699fc6d1ee7a480ebc39f362

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7cf25da1cadf98bee1c8ef921fadf8c4367ad942e93ac349717a873289a8ceb4",
    "cross_cats_sorted": [
      "math.DS"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.flu-dyn",
    "submitted_at": "2021-11-16T10:50:00Z",
    "title_canon_sha256": "24dc7617f62aee4080a3f72bf0fe3fef304cedcd9494f5cabbbc5732c17c055c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2111.08351",
    "kind": "arxiv",
    "version": 1
  }
}