Pith Number

pith:C7V2N4BI

pith:2005:C7V2N4BIJ4FCHVPULCZOW5FZCL

not attested not anchored not stored refs pending

Seifert surfaces in open books, and a new coding algorithm for links

Mikami Hirasawa, Rei Furihata, Tsuyoshi Kobayashi

arxiv:math/0511152 v1 · 2005-11-07 · math.GT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{C7V2N4BIJ4FCHVPULCZOW5FZCL}

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	2026-05-18T02:57:51.020014Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

17eba6f0284f0a23d5f458b2eb74b912d243d571b1666bbd52f956d9c19f0f34

Aliases

arxiv: math/0511152 · arxiv_version: math/0511152v1 · doi: 10.48550/arxiv.math/0511152 · pith_short_12: C7V2N4BIJ4FC · pith_short_16: C7V2N4BIJ4FCHVPU · pith_short_8: C7V2N4BI

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/C7V2N4BIJ4FCHVPULCZOW5FZCL \
  | 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: 17eba6f0284f0a23d5f458b2eb74b912d243d571b1666bbd52f956d9c19f0f34

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "478aa1ec279537d3d3415a0bd300b34e4406219ed6f671ebe8f763b0fd1cb474",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "math.GT",
    "submitted_at": "2005-11-07T01:00:54Z",
    "title_canon_sha256": "6e75664c4633942df97a65fba2c0f57d56b22a4ad8868d9f122c0655dcedeefa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/0511152",
    "kind": "arxiv",
    "version": 1
  }
}