Pith Number

pith:MTRB7FML

pith:2007:MTRB7FML2N4SB2P3W34WGTRNEL

not attested not anchored not stored refs pending

Numerical Improvement of the Discrete Element Method applied to Shear of Granular Media

Andr\'es A. Pe\~na, Hans J. Herrmann, Pedro G. Lind, Sean McNamara

arxiv:0709.3716 v1 · 2007-09-24 · cond-mat.mtrl-sci

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{MTRB7FML2N4SB2P3W34WGTRNEL}

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	2026-05-18T03:37:42.186535Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

64e21f958bd37920e9fbb6f9634e2d22e7bbc49c503fa786cc9f80e9f3eccf25

Aliases

arxiv: 0709.3716 · arxiv_version: 0709.3716v1 · doi: 10.48550/arxiv.0709.3716 · pith_short_12: MTRB7FML2N4S · pith_short_16: MTRB7FML2N4SB2P3 · pith_short_8: MTRB7FML

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/MTRB7FML2N4SB2P3W34WGTRNEL \
  | 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: 64e21f958bd37920e9fbb6f9634e2d22e7bbc49c503fa786cc9f80e9f3eccf25

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e73c057f9478f579bfbd37ab31431315cd9382402bfdada113327eca8bd4469c",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "cond-mat.mtrl-sci",
    "submitted_at": "2007-09-24T09:08:57Z",
    "title_canon_sha256": "ea98c2a29f72f8505a2289e016a01e7ce5c7eac6327f9ac2916827474e542bc8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0709.3716",
    "kind": "arxiv",
    "version": 1
  }
}