Pith Number

pith:IB45KI6N

pith:2021:IB45KI6NKDT6JIDQH37WFDJPX6

not attested not anchored not stored refs pending

Residuation for Soft Constraints: Lexicographic Orders and Approximation Techniques

Fabio Gadducci, Francesco Santini

arxiv:2103.06741 v1 · 2021-03-11 · cs.LO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{IB45KI6NKDT6JIDQH37WFDJPX6}

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	2026-07-05T02:22:18.831275Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4079d523cd50e7e4a0703eff628d2fbf82dc23ec7621100b028f4b8cd41f47a6

Aliases

arxiv: 2103.06741 · arxiv_version: 2103.06741v1 · doi: 10.48550/arxiv.2103.06741 · pith_short_12: IB45KI6NKDT6 · pith_short_16: IB45KI6NKDT6JIDQ · pith_short_8: IB45KI6N

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/IB45KI6NKDT6JIDQH37WFDJPX6 \
  | 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: 4079d523cd50e7e4a0703eff628d2fbf82dc23ec7621100b028f4b8cd41f47a6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "024a6541fbf7d4d59146a84b7c206b02d6fc1fdc69baffa50fd61552229aa967",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2021-03-11T15:39:48Z",
    "title_canon_sha256": "71ac993afb208b35769c3210b2af73d1228222e3230b141beb94d806bb0ddbde"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2103.06741",
    "kind": "arxiv",
    "version": 1
  }
}