Pith Number

pith:4LFFTUXD

pith:2018:4LFFTUXDNXGIR2GXUAORGCC6SN

not attested not anchored not stored refs pending

Method of model reduction and multifidelity models for solute transport in random layered porous media

Alexandre M. Tartakovsky, Zhijie Xu

arxiv:1806.10628 v1 · 2018-06-25 · 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{4LFFTUXDNXGIR2GXUAORGCC6SN}

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	2026-05-18T00:09:46.880990Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e2ca59d2e36dcc88e8d7a01d13085e937df0e3b531d5c810107a298469c637b7

Aliases

arxiv: 1806.10628 · arxiv_version: 1806.10628v1 · doi: 10.48550/arxiv.1806.10628 · pith_short_12: 4LFFTUXDNXGI · pith_short_16: 4LFFTUXDNXGIR2GX · pith_short_8: 4LFFTUXD

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/4LFFTUXDNXGIR2GXUAORGCC6SN \
  | 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: e2ca59d2e36dcc88e8d7a01d13085e937df0e3b531d5c810107a298469c637b7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9685ae9e2311a5ac782627d3741f8dbcd9d14612b03e785c1f6eaba54cb0c870",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.flu-dyn",
    "submitted_at": "2018-06-25T21:28:52Z",
    "title_canon_sha256": "cf3f64c34dc7983bea9623030eb5e85da866b7fde4d63ec13acfa4618bc1069c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1806.10628",
    "kind": "arxiv",
    "version": 1
  }
}