Pith Number

pith:AEPGSNF6

pith:2017:AEPGSNF6AGEJYWNGVBWAQNBODC

not attested not anchored not stored refs pending

Arcs on Punctured Disks Intersecting at Most Twice with Endpoints on the Boundary

Assaf Bar-Natan

arxiv:1708.06402 v1 · 2017-08-21 · 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{AEPGSNF6AGEJYWNGVBWAQNBODC}

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	2026-05-18T00:37:41.700566Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

011e6934be01889c59a6a86c08342e1884da865e959c3a47490469e4602394b9

Aliases

arxiv: 1708.06402 · arxiv_version: 1708.06402v1 · doi: 10.48550/arxiv.1708.06402 · pith_short_12: AEPGSNF6AGEJ · pith_short_16: AEPGSNF6AGEJYWNG · pith_short_8: AEPGSNF6

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/AEPGSNF6AGEJYWNGVBWAQNBODC \
  | 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: 011e6934be01889c59a6a86c08342e1884da865e959c3a47490469e4602394b9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c36d373d10c201ba2113fb133cdb7f03fb0d9c22867832447ed4d910c51c601f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GT",
    "submitted_at": "2017-08-21T20:18:22Z",
    "title_canon_sha256": "c1c65258efbffa14a901d329e342aa4da2d0a9c4f0d2cf5a045f648b7250d6bc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1708.06402",
    "kind": "arxiv",
    "version": 1
  }
}