Pith Number

pith:EHIDU75X

pith:2021:EHIDU75X54QXFD235RKON3BGC7

not attested not anchored not stored refs pending

Towards replacing physical testing of granular materials with a Topology-based Model

Amitesh Maiti, Aniketh Venkat, Attila Gyulassy, Graham Kosiba, Henry Reinstein, Peer-Timo Bremer, Richard Gee, Valerio Pascucci

arxiv:2109.08777 v1 · 2021-09-17 · 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{EHIDU75X54QXFD235RKON3BGC7}

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	2026-07-05T03:15:38.345358Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

21d03a7fb7ef21728f5bec54e6ec2617d78f68c6a055f3b2c82e5be50474dc4d

Aliases

arxiv: 2109.08777 · arxiv_version: 2109.08777v1 · doi: 10.48550/arxiv.2109.08777 · pith_short_12: EHIDU75X54QX · pith_short_16: EHIDU75X54QXFD23 · pith_short_8: EHIDU75X

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/EHIDU75X54QXFD235RKON3BGC7 \
  | 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: 21d03a7fb7ef21728f5bec54e6ec2617d78f68c6a055f3b2c82e5be50474dc4d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "22570791bcbdec92b9d4a7b465c113a9fa41eca714b458b147f959d2a53b6675",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.flu-dyn",
    "submitted_at": "2021-09-17T22:43:58Z",
    "title_canon_sha256": "7e39156cb997d33fabb6bc44be614230b3f4e58e5e7cf224201e00e8cc585feb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2109.08777",
    "kind": "arxiv",
    "version": 1
  }
}