Pith Number

pith:AU6S7TOV

pith:2007:AU6S7TOV6VC2NCS5LPKB6EALMR

not attested not anchored not stored refs pending

Lens space surgeries on A'Campo's divide knots

Yuichi Yamada

arxiv:0705.0090 v2 · 2007-05-01 · 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{AU6S7TOV6VC2NCS5LPKB6EALMR}

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	2026-05-18T01:22:31.264366Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

053d2fcdd5f545a68a5d5bd41f100b6446faeccc7d9c0f3c2661d2ac1dfe39b6

Aliases

arxiv: 0705.0090 · arxiv_version: 0705.0090v2 · doi: 10.48550/arxiv.0705.0090 · pith_short_12: AU6S7TOV6VC2 · pith_short_16: AU6S7TOV6VC2NCS5 · pith_short_8: AU6S7TOV

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/AU6S7TOV6VC2NCS5LPKB6EALMR \
  | 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: 053d2fcdd5f545a68a5d5bd41f100b6446faeccc7d9c0f3c2661d2ac1dfe39b6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f81b1c86e0cc2b68c00cd1dd8bfc4b543d97d174d5cbf4ae4276598683a9a6c0",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "math.GT",
    "submitted_at": "2007-05-01T09:06:27Z",
    "title_canon_sha256": "af85310f7b3b09ce8f181a5ef73c87127f3cb7fab93003da658559f11bbc7cd0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0705.0090",
    "kind": "arxiv",
    "version": 2
  }
}