Pith Number

pith:RFBT4DJY

pith:2018:RFBT4DJY6JXODA3AS5V2KIIRJN

not attested not anchored not stored refs pending

Unified approach to discretization of flow in fractured porous media

Alessio Fumagalli, Eirik Keilegavlen, Jan M. Nordbotten, Wietse M. Boon

arxiv:1802.05961 v2 · 2018-02-16 · math.NA · cs.NA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{RFBT4DJY6JXODA3AS5V2KIIRJN}

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	2026-06-04T19:11:31.537202Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

89433e0d38f26ee18360976ba521114b789376a376679217dad1a24dc710ceae

Aliases

arxiv: 1802.05961 · arxiv_version: 1802.05961v2 · doi: 10.48550/arxiv.1802.05961 · pith_short_12: RFBT4DJY6JXO · pith_short_16: RFBT4DJY6JXODA3A · pith_short_8: RFBT4DJY

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/RFBT4DJY6JXODA3AS5V2KIIRJN \
  | 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: 89433e0d38f26ee18360976ba521114b789376a376679217dad1a24dc710ceae

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3da93cdfeff4e9ada062fa6cbd58c20678c9b50448cf2a72a413434cde06bb45",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2018-02-16T14:44:28Z",
    "title_canon_sha256": "16a0476280426a5f00cafdcb2b844a0bc7b82ef39b88f90e167c5bb0d81aa9c0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1802.05961",
    "kind": "arxiv",
    "version": 2
  }
}