Pith Number

pith:O2SYXJFU

pith:2019:O2SYXJFUUMMAQ3YJJFB4OPO6SE

not attested not anchored not stored refs pending

Solving the Steiner Tree Problem in Graphs using Physarum-inspired Algorithms

Yahui Sun

arxiv:1903.08926 v2 · 2019-03-21 · cs.ET

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{O2SYXJFUUMMAQ3YJJFB4OPO6SE}

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	2026-05-17T23:49:14.418280Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

76a58ba4b4a318086f094943c73dde9103efbd908052579c253711a8fde74aa7

Aliases

arxiv: 1903.08926 · arxiv_version: 1903.08926v2 · doi: 10.48550/arxiv.1903.08926 · pith_short_12: O2SYXJFUUMMA · pith_short_16: O2SYXJFUUMMAQ3YJ · pith_short_8: O2SYXJFU

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/O2SYXJFUUMMAQ3YJJFB4OPO6SE \
  | 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: 76a58ba4b4a318086f094943c73dde9103efbd908052579c253711a8fde74aa7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "60b8029d442145611673af0c8668b211fcba2f8146114e9cab5b9cd0df68610f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.ET",
    "submitted_at": "2019-03-21T11:22:20Z",
    "title_canon_sha256": "e4b50a998934a17b965c24dc90ae99d5f7cbe24a34640e6543a339abf3d265e1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1903.08926",
    "kind": "arxiv",
    "version": 2
  }
}