Pith Number

pith:NM4KFWG2

pith:2018:NM4KFWG23EMNYMQRLOBRSV6F2N

not attested not anchored not stored refs pending

Selected Qualitative Spatio-temporal Calculi Developed for Constraint Reasoning: A Review

Debasis Mitra

arxiv:1812.02580 v1 · 2018-12-03 · cs.AI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NM4KFWG23EMNYMQRLOBRSV6F2N}

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	2026-05-17T23:58:55.383826Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6b38a2d8dad918dc32115b831957c5d34a1057d6478485551cdc19ad2cf5b802

Aliases

arxiv: 1812.02580 · arxiv_version: 1812.02580v1 · doi: 10.48550/arxiv.1812.02580 · pith_short_12: NM4KFWG23EMN · pith_short_16: NM4KFWG23EMNYMQR · pith_short_8: NM4KFWG2

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/NM4KFWG23EMNYMQRLOBRSV6F2N \
  | 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: 6b38a2d8dad918dc32115b831957c5d34a1057d6478485551cdc19ad2cf5b802

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e5a18137971c0fe366ee262d2b776c6d3356c7725f6f7120e52d3fe80ef98193",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.AI",
    "submitted_at": "2018-12-03T23:49:37Z",
    "title_canon_sha256": "5ebe586f0a1096bb8c6c05498db33245c7d2dfecc929b18e0fbde3f1b6ca2d9c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1812.02580",
    "kind": "arxiv",
    "version": 1
  }
}