Pith Number

pith:Q7OZ42G7

pith:2016:Q7OZ42G7K37LGIZBP3HSPMBOWL

not attested not anchored not stored refs pending

Beyond the black box

Jeroen Demeyer, Ursula Whitcher, William Stein

arxiv:1604.08472 v1 · 2016-04-28 · math.HO · cs.CY · math.NA · math.NT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{Q7OZ42G7K37LGIZBP3HSPMBOWL}

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	2026-05-18T01:16:03.878153Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

87dd9e68df56feb323217ecf27b02eb2dff62e771f2a7c73ef32a44db6a0d4cf

Aliases

arxiv: 1604.08472 · arxiv_version: 1604.08472v1 · doi: 10.48550/arxiv.1604.08472 · pith_short_12: Q7OZ42G7K37L · pith_short_16: Q7OZ42G7K37LGIZB · pith_short_8: Q7OZ42G7

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/Q7OZ42G7K37LGIZBP3HSPMBOWL \
  | 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: 87dd9e68df56feb323217ecf27b02eb2dff62e771f2a7c73ef32a44db6a0d4cf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7f84b1c0a6a987043d36e1a73fb3bbc28317aa7b492cc5208a7f4aaa42a58631",
    "cross_cats_sorted": [
      "cs.CY",
      "math.NA",
      "math.NT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.HO",
    "submitted_at": "2016-04-28T15:39:47Z",
    "title_canon_sha256": "ac1a8092f8bac193eb6464338f1d558e2a69ebdeace4e698ba4e78b2a1d6aa44"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1604.08472",
    "kind": "arxiv",
    "version": 1
  }
}