Pith Number

pith:DDDCUTGW

pith:2012:DDDCUTGWE754UXUNMMIHF4SKJ5

not attested not anchored not stored refs pending

Testing Permanent Oracles -- Revisited

Arnab Bhattacharyya, Rajsekar Manokaran, Sanjeev Arora, Sushant Sachdeva

arxiv:1207.4783 v1 · 2012-07-19 · cs.DS · cs.CC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DDDCUTGWE754UXUNMMIHF4SKJ5}

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	2026-05-18T03:50:35.811567Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

18c62a4cd627fbca5e8d631072f24a4f77f5f3667059934b12872364dcbc95cf

Aliases

arxiv: 1207.4783 · arxiv_version: 1207.4783v1 · doi: 10.48550/arxiv.1207.4783 · pith_short_12: DDDCUTGWE754 · pith_short_16: DDDCUTGWE754UXUN · pith_short_8: DDDCUTGW

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/DDDCUTGWE754UXUNMMIHF4SKJ5 \
  | 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: 18c62a4cd627fbca5e8d631072f24a4f77f5f3667059934b12872364dcbc95cf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6cdd02612e3188588e66b7ed46a1b47981eff3f8ed4c4a7198a9fe36e1f5c3f7",
    "cross_cats_sorted": [
      "cs.CC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2012-07-19T19:54:55Z",
    "title_canon_sha256": "25ed911f94373d35018b355c0645a9ad731ff462ed37feefc45f4c3dc7feb3aa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1207.4783",
    "kind": "arxiv",
    "version": 1
  }
}