Pith Number

pith:EGQAUIKG

pith:2005:EGQAUIKGIIOYN4X3LTB2WZATBO

not attested not anchored not stored refs pending

Ideal triangulations of 3-manifolds II: taut and angle structures

Ensil Kang, J. Hyam Rubinstein

arxiv:math/0502437 v1 · 2005-02-21 · 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{EGQAUIKGIIOYN4X3LTB2WZATBO}

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	2026-05-18T02:41:32.091064Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

21a00a2146421d86f2fb5cc3ab64130b8b78f4818b6cb8b4d29f2e9e8b1c1008

Aliases

arxiv: math/0502437 · arxiv_version: math/0502437v1 · doi: 10.48550/arxiv.math/0502437 · pith_short_12: EGQAUIKGIIOY · pith_short_16: EGQAUIKGIIOYN4X3 · pith_short_8: EGQAUIKG

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/EGQAUIKGIIOYN4X3LTB2WZATBO \
  | 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: 21a00a2146421d86f2fb5cc3ab64130b8b78f4818b6cb8b4d29f2e9e8b1c1008

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8985d1055fc3a84a9b78e7dec4526bba9a2fb3149ea3bbedd209e0a87dfcdd47",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "math.GT",
    "submitted_at": "2005-02-21T14:46:41Z",
    "title_canon_sha256": "4a5b1dde3665876c0c3eaf1fc14584658f8241c6f4aeb436a1c414f14e78f671"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/0502437",
    "kind": "arxiv",
    "version": 1
  }
}