Pith Number

pith:EKX2RRXP

pith:2015:EKX2RRXPPOOFWBDYSM3DKDVXWF

not attested not anchored not stored refs pending

A four dimensional hyperbolic link complement in a standard $S^4$

Hemanth Saratchandran

arxiv:1503.07778 v1 · 2015-03-26 · 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{EKX2RRXPPOOFWBDYSM3DKDVXWF}

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	2026-05-18T02:20:18.801380Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

22afa8c6ef7b9c5b04789336350eb7b15c2245dd28067bc2614c053bc433b233

Aliases

arxiv: 1503.07778 · arxiv_version: 1503.07778v1 · doi: 10.48550/arxiv.1503.07778 · pith_short_12: EKX2RRXPPOOF · pith_short_16: EKX2RRXPPOOFWBDY · pith_short_8: EKX2RRXP

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/EKX2RRXPPOOFWBDYSM3DKDVXWF \
  | 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: 22afa8c6ef7b9c5b04789336350eb7b15c2245dd28067bc2614c053bc433b233

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "39c99153a92f2a73251a067f6c7e5c6420ac334f5d3a7a8d895beee38771db01",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GT",
    "submitted_at": "2015-03-26T16:31:24Z",
    "title_canon_sha256": "bca84797c9d70020ca46b4237f7c8cc0348d76176f8473693daba4ec18be5abd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1503.07778",
    "kind": "arxiv",
    "version": 1
  }
}