Pith Number

pith:7YMKM7G6

pith:2026:7YMKM7G6HBDH65RLN32E3YD2KU

not attested not anchored not stored refs pending

Improved Approximation Algorithms and Hardness Results for Shortest Common Superstring with Reverse Complements

Ryosuke Yamano, Tetsuo Shibuya

arxiv:2603.26176 v2 · 2026-03-27 · cs.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7YMKM7G6HBDH65RLN32E3YD2KU}

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	2026-06-01T01:02:38.409107Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fe18a67cde38467f762b6ef44de07a550974f683fd2b8060c3991cb58687946b

Aliases

arxiv: 2603.26176 · arxiv_version: 2603.26176v2 · doi: 10.48550/arxiv.2603.26176 · pith_short_12: 7YMKM7G6HBDH · pith_short_16: 7YMKM7G6HBDH65RL · pith_short_8: 7YMKM7G6

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/7YMKM7G6HBDH65RLN32E3YD2KU \
  | 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: fe18a67cde38467f762b6ef44de07a550974f683fd2b8060c3991cb58687946b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fd865c445e157680ce3940e2c9f333dca3d9dd7c65e11330a3005aa5f05b44ec",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2026-03-27T08:46:58Z",
    "title_canon_sha256": "5c7894cfddf4d1d0ee5527438660982467036b87fa2e8433f1db87b0f7088653"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2603.26176",
    "kind": "arxiv",
    "version": 2
  }
}