Pith Number

pith:UVPFDYQM

pith:2013:UVPFDYQMT45AZ2S6M7N6PCBHGS

not attested not anchored not stored refs pending

Adaptive Heterogeneous Multiscale Methods for immiscible two-phase flow in porous media

Ben Schweizer, Mario Ohlberger, Patrick Henning

arxiv:1307.2123 v2 · 2013-07-08 · math.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{UVPFDYQMT45AZ2S6M7N6PCBHGS}

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	2026-05-18T02:33:07.838672Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a55e51e20c9f3a0cea5e67dbe788273492776f863927bccb8d6d3610c2f9b32f

Aliases

arxiv: 1307.2123 · arxiv_version: 1307.2123v2 · doi: 10.48550/arxiv.1307.2123 · pith_short_12: UVPFDYQMT45A · pith_short_16: UVPFDYQMT45AZ2S6 · pith_short_8: UVPFDYQM

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/UVPFDYQMT45AZ2S6M7N6PCBHGS \
  | 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: a55e51e20c9f3a0cea5e67dbe788273492776f863927bccb8d6d3610c2f9b32f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b44e2ad1cbaf3b818a79798835aa07bc2b74c877e8030369ced12bb3865837ec",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2013-07-08T15:18:30Z",
    "title_canon_sha256": "63812c52b44b74289f6a4b470b52d3e36ccc70c81fe0bc9d47811ef5fa77414d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1307.2123",
    "kind": "arxiv",
    "version": 2
  }
}