Pith Number

pith:D5GSNHZE

pith:2025:D5GSNHZEMS2NMEVLGIIWJGYRZN

not attested not anchored not stored refs pending

THH(Z) and the image of J

Arpon Raksit, Sanath K. Devalapurkar

arxiv:2505.02218 v1 · 2025-05-04 · math.AT · math.AG · math.KT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{D5GSNHZEMS2NMEVLGIIWJGYRZN}

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	2026-07-05T10:58:33.847630Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1f4d269f2464b4d612ab3211649b11cb7924e97754ed3cffb7714c9d9dad8f0f

Aliases

arxiv: 2505.02218 · arxiv_version: 2505.02218v1 · doi: 10.48550/arxiv.2505.02218 · pith_short_12: D5GSNHZEMS2N · pith_short_16: D5GSNHZEMS2NMEVL · pith_short_8: D5GSNHZE

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/D5GSNHZEMS2NMEVLGIIWJGYRZN \
  | 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: 1f4d269f2464b4d612ab3211649b11cb7924e97754ed3cffb7714c9d9dad8f0f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "256ae28e293ae11d5655be87e91d142256e1ff35663840a44f4baedb372700d2",
    "cross_cats_sorted": [
      "math.AG",
      "math.KT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AT",
    "submitted_at": "2025-05-04T19:01:32Z",
    "title_canon_sha256": "647ab3c059bde19b5ff14372308767a2516534826ef406de7c12cf4c8ca76858"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2505.02218",
    "kind": "arxiv",
    "version": 1
  }
}