Pith Number

pith:TVAMQQO4

pith:2015:TVAMQQO4NGAYPLBF5S4NKBQ6IV

not attested not anchored not stored refs pending

Non-meridional epimorphisms of knot groups

Jae Choon Cha, Masaaki Suzuki

arxiv:1502.06039 v1 · 2015-02-20 · 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{TVAMQQO4NGAYPLBF5S4NKBQ6IV}

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	2026-05-18T01:15:46.992136Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9d40c841dc698187ac25ecb8d5061e454fd5ccd514b947608aba9a4e79e83478

Aliases

arxiv: 1502.06039 · arxiv_version: 1502.06039v1 · doi: 10.48550/arxiv.1502.06039 · pith_short_12: TVAMQQO4NGAY · pith_short_16: TVAMQQO4NGAYPLBF · pith_short_8: TVAMQQO4

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/TVAMQQO4NGAYPLBF5S4NKBQ6IV \
  | 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: 9d40c841dc698187ac25ecb8d5061e454fd5ccd514b947608aba9a4e79e83478

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7f6c0b4d0c7598643ceef71210f3fc9c103837a5ee2e0ff8294dcc28ddfc6583",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GT",
    "submitted_at": "2015-02-20T23:37:55Z",
    "title_canon_sha256": "a2469cbf33af4a35c3f89472439440f05709e30f14616a776d53ed06c6187683"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1502.06039",
    "kind": "arxiv",
    "version": 1
  }
}