Pith Number

pith:D7YYPVTU

pith:2012:D7YYPVTUZVIKCPQVPCF36OYUTS

not attested not anchored not stored refs pending

Efficient Snapshot Retrieval over Historical Graph Data

Amol Deshpande, Udayan Khurana

arxiv:1207.5777 v1 · 2012-07-24 · cs.DB · cs.SI · physics.soc-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{D7YYPVTUZVIKCPQVPCF36OYUTS}

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	2026-05-18T03:50:11.372089Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1ff187d674cd50a13e15788bbf3b149c921d2073692ad6f79934878f056cb42d

Aliases

arxiv: 1207.5777 · arxiv_version: 1207.5777v1 · doi: 10.48550/arxiv.1207.5777 · pith_short_12: D7YYPVTUZVIK · pith_short_16: D7YYPVTUZVIKCPQV · pith_short_8: D7YYPVTU

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/D7YYPVTUZVIKCPQVPCF36OYUTS \
  | 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: 1ff187d674cd50a13e15788bbf3b149c921d2073692ad6f79934878f056cb42d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7e42fb3784f3253b9bc04a8c743a80c245a329be7a245c91846ead22da85e227",
    "cross_cats_sorted": [
      "cs.SI",
      "physics.soc-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DB",
    "submitted_at": "2012-07-24T19:15:28Z",
    "title_canon_sha256": "4c2de5e23ea09a5649ca66936c05021cb4aa6dc33d11348fbd272a9c5da9dcc1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1207.5777",
    "kind": "arxiv",
    "version": 1
  }
}