Pith Number

pith:R43UHDZB

pith:2017:R43UHDZB26HCNEQDKTAKKRMBD4

not attested not anchored not stored refs pending

How to Search the Internet Archive Without Indexing It

Felipe Reis, Nam Khanh Tran, Nattiya Kanhabua, Philipp Kemkes, Tu Ngoc Nguyen, Wolfgang Nejdl

arxiv:1701.08256 v1 · 2017-01-28 · cs.DL · cs.IR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{R43UHDZB26HCNEQDKTAKKRMBD4}

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	2026-05-18T00:51:54.752995Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8f37438f21d78e26920354c0a545811f2a6cdd128a3eb2aed8b129f0f159b32c

Aliases

arxiv: 1701.08256 · arxiv_version: 1701.08256v1 · doi: 10.48550/arxiv.1701.08256 · pith_short_12: R43UHDZB26HC · pith_short_16: R43UHDZB26HCNEQD · pith_short_8: R43UHDZB

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/R43UHDZB26HCNEQDKTAKKRMBD4 \
  | 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: 8f37438f21d78e26920354c0a545811f2a6cdd128a3eb2aed8b129f0f159b32c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "37362abb3edebf4d33fb20fb83d00cd0139dd0f1e49289236deae1bcebf370bc",
    "cross_cats_sorted": [
      "cs.IR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DL",
    "submitted_at": "2017-01-28T05:46:46Z",
    "title_canon_sha256": "d231eadda4019031e69cd4159483c90812c1e0d15275403c2717d93a3ba1affc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1701.08256",
    "kind": "arxiv",
    "version": 1
  }
}