Pith Number

pith:D5FQDTGP

pith:2012:D5FQDTGPFD67FFUQ3K6R5CH44T

not attested not anchored not stored refs pending

Classical hybrid approaches on a transportation problem with gas emissions constraints

Camelia-M. Pintea, Mara Hajdu-Macelaru, Petrica C. Pop

arxiv:1211.3218 v1 · 2012-11-14 · cs.CY

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{D5FQDTGPFD67FFUQ3K6R5CH44T}

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	2026-05-18T03:40:50.560259Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1f4b01cccf28fdf29690dabd1e88fce4e49db2a74f8e05029f5e22f1e9dcdb89

Aliases

arxiv: 1211.3218 · arxiv_version: 1211.3218v1 · doi: 10.48550/arxiv.1211.3218 · pith_short_12: D5FQDTGPFD67 · pith_short_16: D5FQDTGPFD67FFUQ · pith_short_8: D5FQDTGP

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/D5FQDTGPFD67FFUQ3K6R5CH44T \
  | 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: 1f4b01cccf28fdf29690dabd1e88fce4e49db2a74f8e05029f5e22f1e9dcdb89

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3689674f66e97f3ec0ffb772fa3b13ce5d956f829a46d8a4e4da3a97990a37cf",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CY",
    "submitted_at": "2012-11-14T07:16:29Z",
    "title_canon_sha256": "5604b9fc2f3314fe1a824079a248a139d77ad2efb1439c351bf9062e6b852965"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1211.3218",
    "kind": "arxiv",
    "version": 1
  }
}