Pith Number

pith:X2NDX36U

pith:2015:X2NDX36U7LRSWT7S3OPBELVTOV

not attested not anchored not stored refs pending

Bokstein homomorphism as a universal object

D. Kaledin

arxiv:1510.06258 v2 · 2015-10-21 · math.KT · 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{X2NDX36U7LRSWT7S3OPBELVTOV}

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	2026-05-18T01:29:31.131962Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

be9a3befd4fae32b4ff2db9e122eb3754e2fdb4d91891aaa7c86b65327b4f876

Aliases

arxiv: 1510.06258 · arxiv_version: 1510.06258v2 · doi: 10.48550/arxiv.1510.06258 · pith_short_12: X2NDX36U7LRS · pith_short_16: X2NDX36U7LRSWT7S · pith_short_8: X2NDX36U

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/X2NDX36U7LRSWT7S3OPBELVTOV \
  | 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: be9a3befd4fae32b4ff2db9e122eb3754e2fdb4d91891aaa7c86b65327b4f876

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c1039b6daa13dfbd3a03d5afee9d0675b34c23db576532f8f935ca94636c0b4b",
    "cross_cats_sorted": [
      "math.AG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.KT",
    "submitted_at": "2015-10-21T14:06:14Z",
    "title_canon_sha256": "eae149123ebf3abfd2cba418e01361ec0cbe2684877672d44e49d009b4f96a46"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1510.06258",
    "kind": "arxiv",
    "version": 2
  }
}