Pith Number

pith:HESYERGI

pith:2015:HESYERGIMPQGUPVO5IKQWKPZNE

not attested not anchored not stored refs pending

The SU(N) Casson-Lin invariants for links

Eric Harper, Hans U. Boden

arxiv:1506.03730 v2 · 2015-06-11 · 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{HESYERGIMPQGUPVO5IKQWKPZNE}

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	2026-05-18T00:56:21.593606Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

39258244c863e06a3eaeea150b29f9691edabfd62502642702a7eed10ec2d7a1

Aliases

arxiv: 1506.03730 · arxiv_version: 1506.03730v2 · doi: 10.48550/arxiv.1506.03730 · pith_short_12: HESYERGIMPQG · pith_short_16: HESYERGIMPQGUPVO · pith_short_8: HESYERGI

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/HESYERGIMPQGUPVO5IKQWKPZNE \
  | 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: 39258244c863e06a3eaeea150b29f9691edabfd62502642702a7eed10ec2d7a1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "448f1a66048247e5b1a7e3027674c090ccd3c8b04daba7f034368840a71d0c16",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GT",
    "submitted_at": "2015-06-11T16:11:34Z",
    "title_canon_sha256": "9307e64c4dbe76198762aa8f7e0eaece6c9890d33a5d803c5fc49ecf329f9e97"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1506.03730",
    "kind": "arxiv",
    "version": 2
  }
}