Pith Number

pith:BYKCQ3AL

pith:2014:BYKCQ3AL7RHX5M6WEAXLURXOC5

not attested not anchored not stored refs pending

If Archimedes would have known functions

Oliver Knill

arxiv:1403.5821 v1 · 2014-03-24 · math.HO · cs.DM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BYKCQ3AL7RHX5M6WEAXLURXOC5}

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	2026-05-18T02:55:47.674662Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0e14286c0bfc4f7eb3d6202eba46ee1746c069ed0e35c3eb6c8914632b82397c

Aliases

arxiv: 1403.5821 · arxiv_version: 1403.5821v1 · doi: 10.48550/arxiv.1403.5821 · pith_short_12: BYKCQ3AL7RHX · pith_short_16: BYKCQ3AL7RHX5M6W · pith_short_8: BYKCQ3AL

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/BYKCQ3AL7RHX5M6WEAXLURXOC5 \
  | 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: 0e14286c0bfc4f7eb3d6202eba46ee1746c069ed0e35c3eb6c8914632b82397c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e1ab1cbb8a385c9f3a28c5183354194b713f4cc189f146ba8c774577017eaac3",
    "cross_cats_sorted": [
      "cs.DM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.HO",
    "submitted_at": "2014-03-24T00:19:57Z",
    "title_canon_sha256": "e790924dfae0420b0241c1548d087d4796bc770adcb15f2ad84b70a0c6e2fd32"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1403.5821",
    "kind": "arxiv",
    "version": 1
  }
}