Pith Number

pith:WJ6LBPLS

pith:2015:WJ6LBPLS2YHMQXELM2WR2GVXIT

not attested not anchored not stored refs pending

Efficient Algorithms for the Data Exchange Problem

Kannan Ramchandran, Michael Gastpar, Nebojsa Milosavljevic, Salim El Rouayheb, Sameer Pawar

arxiv:1502.06149 v1 · 2015-02-21 · cs.IT · math.IT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WJ6LBPLS2YHMQXELM2WR2GVXIT}

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	2026-05-18T02:26:37.952409Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b27cb0bd72d60ec85c8b66ad1d1ab744fa4c833532d4ca36e8a66ae4ed2ef007

Aliases

arxiv: 1502.06149 · arxiv_version: 1502.06149v1 · doi: 10.48550/arxiv.1502.06149 · pith_short_12: WJ6LBPLS2YHM · pith_short_16: WJ6LBPLS2YHMQXEL · pith_short_8: WJ6LBPLS

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/WJ6LBPLS2YHMQXELM2WR2GVXIT \
  | 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: b27cb0bd72d60ec85c8b66ad1d1ab744fa4c833532d4ca36e8a66ae4ed2ef007

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "64fa6b648e16a127f11d7dbc2fe33d2451eb636b0a5a9a3ad6e13cdf19ff71f4",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2015-02-21T22:37:04Z",
    "title_canon_sha256": "92c2ae328f3ce069b13bf402dd5530aaa1e6601afae53730509f10ce2618463c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1502.06149",
    "kind": "arxiv",
    "version": 1
  }
}