Pith Number

pith:5AQZUPBD

pith:2021:5AQZUPBDAURLHGL6BI6ZCWEKHH

not attested not anchored not stored refs pending

The Stable Matching Problem and Sudoku

Aidan Duncan, Boyan Litchev, Eric Chen, Garima Rastogi, Jiahe Liu, Matthew Qian, Matvey Borodin, Michael Voigt, Rohith Raghavan, Tanya Khovanova, Veronika Moroz

arxiv:2108.02654 v1 · 2021-08-04 · math.HO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5AQZUPBDAURLHGL6BI6ZCWEKHH}

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	2026-07-05T03:03:35.077615Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e8219a3c230522b3997e0a3d91588a39c3812d5b4255d59f04839daf48d5f4d9

Aliases

arxiv: 2108.02654 · arxiv_version: 2108.02654v1 · doi: 10.48550/arxiv.2108.02654 · pith_short_12: 5AQZUPBDAURL · pith_short_16: 5AQZUPBDAURLHGL6 · pith_short_8: 5AQZUPBD

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/5AQZUPBDAURLHGL6BI6ZCWEKHH \
  | 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: e8219a3c230522b3997e0a3d91588a39c3812d5b4255d59f04839daf48d5f4d9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c75f4ae227502e989b0216226d4b5ef8b0eef5674d56ce51bbf8c0d052522bc2",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "math.HO",
    "submitted_at": "2021-08-04T17:22:07Z",
    "title_canon_sha256": "93bc2b8ca2104911ba7608ddb756a273e609218a6e6526dd8094b409e8911df4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2108.02654",
    "kind": "arxiv",
    "version": 1
  }
}