Pith Number

pith:PB6LHDPI

pith:2015:PB6LHDPIQWFV7SN2JDA3XMR7UW

not attested not anchored not stored refs pending

Quotient-Comprehension Chains

Bart Jacobs, Bas Westerbaan, Bram Westerbaan, Kenta Cho

arxiv:1511.01570 v1 · 2015-11-05 · cs.LO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PB6LHDPIQWFV7SN2JDA3XMR7UW}

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	2026-05-18T01:27:45.221282Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

787cb38de8858b5fc9ba48c1bbb23fa5a23591e1aff766b337a62d609f09b50b

Aliases

arxiv: 1511.01570 · arxiv_version: 1511.01570v1 · doi: 10.48550/arxiv.1511.01570 · pith_short_12: PB6LHDPIQWFV · pith_short_16: PB6LHDPIQWFV7SN2 · pith_short_8: PB6LHDPI

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/PB6LHDPIQWFV7SN2JDA3XMR7UW \
  | 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: 787cb38de8858b5fc9ba48c1bbb23fa5a23591e1aff766b337a62d609f09b50b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "036b1b89015f537678d85da653e9cfc3ae6bb72e0d351d6680f6b2f86e3f5475",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2015-11-05T01:42:39Z",
    "title_canon_sha256": "817a7016835a1ef4549240986b95d3ed4b173f3302a1114a797db78fb299f412"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1511.01570",
    "kind": "arxiv",
    "version": 1
  }
}