Pith Number

pith:SQ7HABEK

pith:2015:SQ7HABEKKISIDKBY2ZGXX36I4F

not attested not anchored not stored refs pending

Communication with Contextual Uncertainty

Badih Ghazi, Ilan Komargodski, Madhu Sudan, Pravesh Kothari

arxiv:1504.04813 v2 · 2015-04-19 · cs.CC · 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{SQ7HABEKKISIDKBY2ZGXX36I4F}

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	2026-05-18T01:36:38.144111Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

943e70048a522481a838d64d7befc8e16f6f77a5e338b71c8ef5c478631e5941

Aliases

arxiv: 1504.04813 · arxiv_version: 1504.04813v2 · doi: 10.48550/arxiv.1504.04813 · pith_short_12: SQ7HABEKKISI · pith_short_16: SQ7HABEKKISIDKBY · pith_short_8: SQ7HABEK

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/SQ7HABEKKISIDKBY2ZGXX36I4F \
  | 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: 943e70048a522481a838d64d7befc8e16f6f77a5e338b71c8ef5c478631e5941

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "17ed15a6ca3844b44ddedfa6bb57ff83e84af947a12dec83b625c26577a662c6",
    "cross_cats_sorted": [
      "cs.IT",
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CC",
    "submitted_at": "2015-04-19T08:46:16Z",
    "title_canon_sha256": "fb6ad845f16c3ef57b129a04689e72d4ed5f63fbcfd2b0c6814e359302217a17"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.04813",
    "kind": "arxiv",
    "version": 2
  }
}