Pith Number

pith:M4FRDTFW

pith:2019:M4FRDTFWNIPNVQEFFVQHZONH36

not attested not anchored not stored refs pending

Empirical analysis of the variability in the flow-density relationship for smart motorways

Colm Connaughton, Kieran Kalair

arxiv:1903.05112 v1 · 2019-03-12 · cs.CY · physics.soc-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{M4FRDTFWNIPNVQEFFVQHZONH36}

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	2026-05-17T23:51:25.408411Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

670b11ccb66a1edac0852d607cb9a7df9e50472d70b12eb25ef1de61d603fd2a

Aliases

arxiv: 1903.05112 · arxiv_version: 1903.05112v1 · doi: 10.48550/arxiv.1903.05112 · pith_short_12: M4FRDTFWNIPN · pith_short_16: M4FRDTFWNIPNVQEF · pith_short_8: M4FRDTFW

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/M4FRDTFWNIPNVQEFFVQHZONH36 \
  | 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: 670b11ccb66a1edac0852d607cb9a7df9e50472d70b12eb25ef1de61d603fd2a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b51ce76fac1c2af870fb878034a58aa2bc7a4827ee561cd26e42e62e1fee2361",
    "cross_cats_sorted": [
      "physics.soc-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CY",
    "submitted_at": "2019-03-12T18:01:21Z",
    "title_canon_sha256": "b4b98b8de6eede70c8c563223d55eccef90899032bcbfab4defbf7c036995cdd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1903.05112",
    "kind": "arxiv",
    "version": 1
  }
}