Pith Number

pith:FZUIUEFS

pith:2025:FZUIUEFSGHDVMUGNPH7AICDW6Q

not attested not anchored not stored refs pending

Non collapse of the Sinha spectral sequence for knots in R^3

Andrea Marino, Paolo Salvatore

arxiv:2504.16785 v1 · 2025-04-23 · math.AT · 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{FZUIUEFSGHDVMUGNPH7AICDW6Q}

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.

Cited by

1 paper in Pith

A Fox-Neuwirth Basis for the Sinha Spectral Sequence

Receipt and verification

First computed	2026-07-05T11:08:19.812440Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2e688a10b231c75650cd79fe040876f430c885c871833d78f80043de2e1b5bfd

Aliases

arxiv: 2504.16785 · arxiv_version: 2504.16785v1 · doi: 10.48550/arxiv.2504.16785 · pith_short_12: FZUIUEFSGHDV · pith_short_16: FZUIUEFSGHDVMUGN · pith_short_8: FZUIUEFS

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/FZUIUEFSGHDVMUGNPH7AICDW6Q \
  | 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: 2e688a10b231c75650cd79fe040876f430c885c871833d78f80043de2e1b5bfd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dd61d746dc7253d954f00d71bb4fc1cecdb335a5947edd21fa5a92b5a71d3e92",
    "cross_cats_sorted": [
      "math.GT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AT",
    "submitted_at": "2025-04-23T15:02:19Z",
    "title_canon_sha256": "760761a94c83fa1d372a4dd93342bf1ef75c74f6ffc9e9978fe1db280e8ee543"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2504.16785",
    "kind": "arxiv",
    "version": 1
  }
}