Pith Number

pith:COW5A3E5

pith:2019:COW5A3E5Y2JCN2KJN4TPEQZXUV

not attested not anchored not stored refs pending

Hydrodynamics of Porous Medium Model with slow reservoirs

Adriana Neumann, Leonardo Bonorino, Patr\'icia Gon\c{c}alves, Renato de Paula

arxiv:1904.10374 v2 · 2019-04-23 · math.PR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{COW5A3E5Y2JCN2KJN4TPEQZXUV}

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	2026-07-05T01:12:19.125659Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

13add06c9dc69226e9496f26f24337a549cfd4f2db5b120119fab3143b9096cf

Aliases

arxiv: 1904.10374 · arxiv_version: 1904.10374v2 · doi: 10.48550/arxiv.1904.10374 · pith_short_12: COW5A3E5Y2JC · pith_short_16: COW5A3E5Y2JCN2KJ · pith_short_8: COW5A3E5

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/COW5A3E5Y2JCN2KJN4TPEQZXUV \
  | 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: 13add06c9dc69226e9496f26f24337a549cfd4f2db5b120119fab3143b9096cf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "73c8819dc71beb7a4e3f117ad214be9d012c9b3aec98c2c61798879ccd9183be",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.PR",
    "submitted_at": "2019-04-23T15:17:25Z",
    "title_canon_sha256": "c47b99281376569a591dbad56ffc7f82bb0bf0ec69dca2d3a297897efaeda2d4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.10374",
    "kind": "arxiv",
    "version": 2
  }
}