Pith Number

pith:ERF5TLPZ

pith:2018:ERF5TLPZTUN4AZY7NIBXQEAN5M

not attested not anchored not stored refs pending

New algorithms for Steiner tree reoptimization

Davide Bil\`o

arxiv:1804.10791 v1 · 2018-04-28 · 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{ERF5TLPZTUN4AZY7NIBXQEAN5M}

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	2026-05-18T00:17:15.552629Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

244bd9adf99d1bc0671f6a0378100deb323ecfbb9bfcea243a2a7bf4aaa805d6

Aliases

arxiv: 1804.10791 · arxiv_version: 1804.10791v1 · doi: 10.48550/arxiv.1804.10791 · pith_short_12: ERF5TLPZTUN4 · pith_short_16: ERF5TLPZTUN4AZY7 · pith_short_8: ERF5TLPZ

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/ERF5TLPZTUN4AZY7NIBXQEAN5M \
  | 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: 244bd9adf99d1bc0671f6a0378100deb323ecfbb9bfcea243a2a7bf4aaa805d6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6b8b250419955348ed019cc0222856d8d1fa1633e1b944b0a25a60197484e50e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2018-04-28T12:00:14Z",
    "title_canon_sha256": "0fa6c9d95bd2a073285b8fe50b791a29ec100d06683d1f0aade7dd608a323c6c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.10791",
    "kind": "arxiv",
    "version": 1
  }
}