Pith Number

pith:PKMREFMX

pith:2018:PKMREFMX3IDLMDSYLO7NRKI5SO

not attested not anchored not stored refs pending

Algebraic links in the Poincar\'e sphere and the Alexander polynomials

A. Campillo, F. Delgado, S. M. Gusein-Zade

arxiv:1804.03419 v1 · 2018-04-10 · math.AG

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PKMREFMX3IDLMDSYLO7NRKI5SO}

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	2026-05-18T00:18:48.318199Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7a99121597da06b60e585bbed8a91d93912a1491dcdebfc0ce6af09d44e51ccf

Aliases

arxiv: 1804.03419 · arxiv_version: 1804.03419v1 · doi: 10.48550/arxiv.1804.03419 · pith_short_12: PKMREFMX3IDL · pith_short_16: PKMREFMX3IDLMDSY · pith_short_8: PKMREFMX

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/PKMREFMX3IDLMDSYLO7NRKI5SO \
  | 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: 7a99121597da06b60e585bbed8a91d93912a1491dcdebfc0ce6af09d44e51ccf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9bfa4e882e68dbbb79382fda148d25f04f490f8e17a166f0acca3359d6a6c5e7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2018-04-10T09:44:10Z",
    "title_canon_sha256": "fca70c6f223ced87748ac776ba04da99c22e3fa11e092e04f564ca2f71f6f77b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.03419",
    "kind": "arxiv",
    "version": 1
  }
}