Pith Number

pith:S4BQFR42

pith:2018:S4BQFR42AFTNJKOR556IFJULF4

not attested not anchored not stored refs pending

On the complexity of the (approximate) nearest colored node problem

Maximilian Probst

arxiv:1807.03721 v1 · 2018-07-10 · 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{S4BQFR42AFTNJKOR556IFJULF4}

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	2026-05-17T23:56:33.750179Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

970302c79a0166d4a9d1ef7c82a68b2f2f65e6264a0de93e3ddf84c1c8e7f0cd

Aliases

arxiv: 1807.03721 · arxiv_version: 1807.03721v1 · doi: 10.48550/arxiv.1807.03721 · pith_short_12: S4BQFR42AFTN · pith_short_16: S4BQFR42AFTNJKOR · pith_short_8: S4BQFR42

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/S4BQFR42AFTNJKOR556IFJULF4 \
  | 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: 970302c79a0166d4a9d1ef7c82a68b2f2f65e6264a0de93e3ddf84c1c8e7f0cd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f6248e456eb77629766a03559a306aae3f4cb949d26edb2c58bfc16157aa5521",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2018-07-10T15:46:41Z",
    "title_canon_sha256": "b669d2651031fececb771cc23a94f91bc0c7011009ccf23d9ad31daa9aa28771"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.03721",
    "kind": "arxiv",
    "version": 1
  }
}