Pith Number

pith:W63ATWXH

pith:2026:W63ATWXHDGGCCSPWTWWYVIXD5F

not attested not anchored not stored refs pending

Efficient three-dimensional variational data assimilation of multi-plane PIV data

Bharathram Ganapathisubramani, Ping He, Samaresh Midya, Sean Symon, Uttam Cadambi Padmanaban

arxiv:2608.07469 v1 · 2026-08-07 · physics.flu-dyn

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{W63ATWXHDGGCCSPWTWWYVIXD5F}

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	2026-08-10T01:15:31.057300Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b7b609dae7198c2149f69dad8aa2e3e964c90c06fccbff12351ea6fe7b63acf3

Aliases

arxiv: 2608.07469 · arxiv_version: 2608.07469v1 · doi: 10.48550/arxiv.2608.07469 · pith_short_12: W63ATWXHDGGC · pith_short_16: W63ATWXHDGGCCSPW · pith_short_8: W63ATWXH

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/W63ATWXHDGGCCSPWTWWYVIXD5F \
  | 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: b7b609dae7198c2149f69dad8aa2e3e964c90c06fccbff12351ea6fe7b63acf3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "faa1ab451c3621ad41619f7d3be9f2d6613e696d38e5ebada65cf2cbbba21990",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-sa/4.0/",
    "primary_cat": "physics.flu-dyn",
    "submitted_at": "2026-08-07T17:59:14Z",
    "title_canon_sha256": "ba7efa02f28e54f77609e2a2dd48203f8f8fc2278cb120de5fec74e791d5a009"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2608.07469",
    "kind": "arxiv",
    "version": 1
  }
}