Pith Number

pith:JDCHUUZZ

pith:2015:JDCHUUZZVWPZWNX6PX3KHV3KHT

not attested not anchored not stored refs pending

An invariant of colored links via skein relation

Francesca Aicardi

arxiv:1508.07107 v3 · 2015-08-28 · 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{JDCHUUZZVWPZWNX6PX3KHV3KHT}

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	2026-05-18T01:25:26.148186Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

48c47a5339ad9f9b36fe7df6a3d76a3cde0fed51af75ae404b33242114d51ee8

Aliases

arxiv: 1508.07107 · arxiv_version: 1508.07107v3 · doi: 10.48550/arxiv.1508.07107 · pith_short_12: JDCHUUZZVWPZ · pith_short_16: JDCHUUZZVWPZWNX6 · pith_short_8: JDCHUUZZ

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/JDCHUUZZVWPZWNX6PX3KHV3KHT \
  | 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: 48c47a5339ad9f9b36fe7df6a3d76a3cde0fed51af75ae404b33242114d51ee8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7f4f512a14fc863970ae7fa3ec8cf9f91194a5b88f3ddc5c2477873e49f15842",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GT",
    "submitted_at": "2015-08-28T07:18:41Z",
    "title_canon_sha256": "167fdfc5518fb67f29e18fd0a4b1986f43e4b4009b2633025c86fdf9087743f3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1508.07107",
    "kind": "arxiv",
    "version": 3
  }
}