Pith Number

pith:NBBSDM4V

pith:2017:NBBSDM4V7M6YIIG2U4FS4GE5U4

not attested not anchored not stored refs pending

Tomographic Study of Internal Erosion of Particle Flows in Porous Media

Falk K. Wittel, Filippo Bianchi, Hans J. Herrmann, Marcel Thielmann, Pavel Trtik

arxiv:1709.00221 v2 · 2017-09-01 · 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{NBBSDM4V7M6YIIG2U4FS4GE5U4}

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	2026-05-18T00:25:55.288868Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

684321b395fb3d8420daa70b2e189da700163b16dd657ca531fd487d362f2b29

Aliases

arxiv: 1709.00221 · arxiv_version: 1709.00221v2 · doi: 10.48550/arxiv.1709.00221 · pith_short_12: NBBSDM4V7M6Y · pith_short_16: NBBSDM4V7M6YIIG2 · pith_short_8: NBBSDM4V

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/NBBSDM4V7M6YIIG2U4FS4GE5U4 \
  | 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: 684321b395fb3d8420daa70b2e189da700163b16dd657ca531fd487d362f2b29

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e569dade4c13145bde2444386844ae85807c35b8503dc1f20ecf960c45851b8a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.flu-dyn",
    "submitted_at": "2017-09-01T09:46:43Z",
    "title_canon_sha256": "7d6304a7644a16f5ae90d0f625423089f72759a5c494f14b1020826609430f0e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1709.00221",
    "kind": "arxiv",
    "version": 2
  }
}