Pith Number

pith:VRYY55CX

pith:2025:VRYY55CXAAUMHTIJFU2UQBAX5C

not attested not anchored not stored refs pending

Computational Approaches to the Singer Transfer: Preimages in the Lambda Algebra and $G_k$-Invariant Theory

Dang Vo Phuc

arxiv:2507.10108 v4 · 2025-07-14 · math.AT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VRYY55CXAAUMHTIJFU2UQBAX5C}

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	2026-07-05T11:42:55.189122Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ac718ef4570028c3cd092d35480417e89c91434a72e8bb62b7c5682fac08b7d8

Aliases

arxiv: 2507.10108 · arxiv_version: 2507.10108v4 · doi: 10.48550/arxiv.2507.10108 · pith_short_12: VRYY55CXAAUM · pith_short_16: VRYY55CXAAUMHTIJ · pith_short_8: VRYY55CX

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/VRYY55CXAAUMHTIJFU2UQBAX5C \
  | 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: ac718ef4570028c3cd092d35480417e89c91434a72e8bb62b7c5682fac08b7d8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "759e32899cc30ff148a05138e9e2910f2e7295761e381874318296c9c3e81cf7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AT",
    "submitted_at": "2025-07-14T09:47:58Z",
    "title_canon_sha256": "bc7032d5683e4ec47a44b4273aa80509d4b627e808021372e915845c45793136"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2507.10108",
    "kind": "arxiv",
    "version": 4
  }
}