Pith Number

pith:OWAM63SY

pith:2021:OWAM63SY4WORFYDBDRJN5CYHWU

not attested not anchored not stored refs pending

Distinct Angle Problems and Variants

Charles Wolf, Ethan Pesikoff, Eyvindur A. Palsson, Faye Jackson, Henry L. Fleischmann, Hongyi B. Hu, Steven J. Miller

arxiv:2108.12015 v1 · 2021-08-26 · math.CO · cs.CG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OWAM63SY4WORFYDBDRJN5CYHWU}

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	2026-07-05T03:09:20.876521Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7580cf6e58e59d12e0611c52de8b07b531ff8ea307b9c33e9a6fd77655aa945c

Aliases

arxiv: 2108.12015 · arxiv_version: 2108.12015v1 · doi: 10.48550/arxiv.2108.12015 · pith_short_12: OWAM63SY4WOR · pith_short_16: OWAM63SY4WORFYDB · pith_short_8: OWAM63SY

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/OWAM63SY4WORFYDBDRJN5CYHWU \
  | 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: 7580cf6e58e59d12e0611c52de8b07b531ff8ea307b9c33e9a6fd77655aa945c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ae20a25a3f6e97671acaecbf715e5be973b5436d53aa0365dc25d5d751dffa0d",
    "cross_cats_sorted": [
      "cs.CG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2021-08-26T19:52:26Z",
    "title_canon_sha256": "81e7204812bb8af3a278c093cce2fdf29e663344a4127dbe22ab71889f91fa86"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2108.12015",
    "kind": "arxiv",
    "version": 1
  }
}