Pith Number

pith:PR5YJH6A

pith:2016:PR5YJH6AT2OMTJHSGFDNHD35ZF

not attested not anchored not stored refs pending

Fixed Parameter Approximations for k-Center Problems in Low Highway Dimension Graphs

Andreas Emil Feldmann

arxiv:1605.02530 v3 · 2016-05-09 · 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{PR5YJH6AT2OMTJHSGFDNHD35ZF}

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	2026-05-17T23:47:44.628921Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7c7b849fc09e9cc9a4f23146d38f7dc967b8ea1e4fe84c4dca12526ab407264f

Aliases

arxiv: 1605.02530 · arxiv_version: 1605.02530v3 · doi: 10.48550/arxiv.1605.02530 · pith_short_12: PR5YJH6AT2OM · pith_short_16: PR5YJH6AT2OMTJHS · pith_short_8: PR5YJH6A

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/PR5YJH6AT2OMTJHSGFDNHD35ZF \
  | 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: 7c7b849fc09e9cc9a4f23146d38f7dc967b8ea1e4fe84c4dca12526ab407264f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7e9322163b46e7abaa615111c719a69099171f5b435416301d6d5b25c5fb03b2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2016-05-09T11:24:00Z",
    "title_canon_sha256": "c660daf4bfec35ec0c3437a80969573d7ba01fe68d384ce152bdc9e3652cd8e2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1605.02530",
    "kind": "arxiv",
    "version": 3
  }
}