Pith Number

pith:RRNTWC6P

pith:2016:RRNTWC6PCKCADJQUNCY2D2SIRZ

not attested not anchored not stored refs pending

When can a formality quasi-isomorphism over rationals be constructed recursively?

G.E. Schneider, V.A. Dolgushev

arxiv:1610.04879 v2 · 2016-10-16 · math.KT · 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{RRNTWC6PCKCADJQUNCY2D2SIRZ}

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	2026-05-18T00:40:19.558814Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8c5b3b0bcf128401a61468b1a1ea488e43c2504ba4c5557a42cc18ae7b05e5e5

Aliases

arxiv: 1610.04879 · arxiv_version: 1610.04879v2 · doi: 10.48550/arxiv.1610.04879 · pith_short_12: RRNTWC6PCKCA · pith_short_16: RRNTWC6PCKCADJQU · pith_short_8: RRNTWC6P

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/RRNTWC6PCKCADJQUNCY2D2SIRZ \
  | 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: 8c5b3b0bcf128401a61468b1a1ea488e43c2504ba4c5557a42cc18ae7b05e5e5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fa434addbd9d162f1a4852f02e5a6cfec8d2d949de79fc326049c1ab8ed9d2ca",
    "cross_cats_sorted": [
      "math.AT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.KT",
    "submitted_at": "2016-10-16T16:17:26Z",
    "title_canon_sha256": "8cf6c90d666fc40a5805ad85386845611af700d254cf48297ea2fd6263ead75e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1610.04879",
    "kind": "arxiv",
    "version": 2
  }
}