Pith Number

pith:E7I2UM3K

pith:2015:E7I2UM3KDAVARAICEDHTOL2RPE

not attested not anchored not stored refs pending

Contact open books with exotic pages

Burak Ozbagci, Otto van Koert

arxiv:1502.03233 v1 · 2015-02-11 · math.GT · math.SG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{E7I2UM3KDAVARAICEDHTOL2RPE}

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	2026-05-18T00:53:24.717141Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

27d1aa336a182a08810220cf372f5179044ef218bdc5fd558874bc3988f8ace1

Aliases

arxiv: 1502.03233 · arxiv_version: 1502.03233v1 · doi: 10.48550/arxiv.1502.03233 · pith_short_12: E7I2UM3KDAVA · pith_short_16: E7I2UM3KDAVARAIC · pith_short_8: E7I2UM3K

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/E7I2UM3KDAVARAICEDHTOL2RPE \
  | 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: 27d1aa336a182a08810220cf372f5179044ef218bdc5fd558874bc3988f8ace1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "873aacceebef46b7a93616396d115bf95360a0231554074559b84be0b6390c67",
    "cross_cats_sorted": [
      "math.SG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GT",
    "submitted_at": "2015-02-11T09:37:56Z",
    "title_canon_sha256": "9c2950e16fdad852534a1af36abc8b1b0e8578868ceffbd5027d868483bdc214"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1502.03233",
    "kind": "arxiv",
    "version": 1
  }
}