Pith Number

pith:POIH4BEC

pith:2015:POIH4BECECJFKYB7YYFQNVN7QY

not attested not anchored not stored refs pending

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Ahmed Douik, Mohamed-Slim Alouini, Sameh Sorour, Tareq Y. Al-Naffouri

arxiv:1504.03985 v2 · 2015-04-15 · 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{POIH4BECECJFKYB7YYFQNVN7QY}

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	2026-05-18T01:36:13.166922Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7b907e0482209255603fc60b06d5bf861cb11d7a7e0da37e50cddf94cfac4faa

Aliases

arxiv: 1504.03985 · arxiv_version: 1504.03985v2 · doi: 10.48550/arxiv.1504.03985 · pith_short_12: POIH4BECECJF · pith_short_16: POIH4BECECJFKYB7 · pith_short_8: POIH4BEC

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/POIH4BECECJFKYB7YYFQNVN7QY \
  | 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: 7b907e0482209255603fc60b06d5bf861cb11d7a7e0da37e50cddf94cfac4faa

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bd2a4e428d5bfb7ef20f9a6977c09b4c37985eb1e06d11651ed8809426b7d7ab",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2015-04-15T18:28:44Z",
    "title_canon_sha256": "c4b6bdf5c868bdb4502862826f65db5f7caca8472c23e6353f888c0dc09d53a2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.03985",
    "kind": "arxiv",
    "version": 2
  }
}