Pith Number

pith:F7I7PKEV

pith:2017:F7I7PKEVWENQY3TIWHZSDTMXN5

not attested not anchored not stored refs pending

Proper orthogonal decomposition vs. Fourier analysis for extraction of large-scale structures of thermal convection

Mahendra K. Verma, Supriyo Paul

arxiv:1705.09897 v1 · 2017-05-28 · physics.flu-dyn · nlin.PS · physics.comp-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{F7I7PKEVWENQY3TIWHZSDTMXN5}

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	2026-05-18T00:43:34.248265Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2fd1f7a895b11b0c6e68b1f321cd976f4481c61b3488436177789ecf08e29d24

Aliases

arxiv: 1705.09897 · arxiv_version: 1705.09897v1 · doi: 10.48550/arxiv.1705.09897 · pith_short_12: F7I7PKEVWENQ · pith_short_16: F7I7PKEVWENQY3TI · pith_short_8: F7I7PKEV

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/F7I7PKEVWENQY3TIWHZSDTMXN5 \
  | 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: 2fd1f7a895b11b0c6e68b1f321cd976f4481c61b3488436177789ecf08e29d24

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5bf065a010471ac7a6aa6a8a86aaca3a6cb6c67e45eb5c9e3c60203a45af3a3a",
    "cross_cats_sorted": [
      "nlin.PS",
      "physics.comp-ph"
    ],
    "license": "http://creativecommons.org/publicdomain/zero/1.0/",
    "primary_cat": "physics.flu-dyn",
    "submitted_at": "2017-05-28T06:24:24Z",
    "title_canon_sha256": "924a8bd8e7bf3bfce2b0ff3a4d35ef734c4a140559016c149b1b05109b9c0d57"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1705.09897",
    "kind": "arxiv",
    "version": 1
  }
}