Pith Number

pith:6EA3MEW5

pith:2006:6EA3MEW5ZXT6MPA47RQRFE7PLF

not attested not anchored not stored refs pending

Generalized string topology operations

Kate Gruher, Paolo Salvatore

arxiv:math/0602210 v1 · 2006-02-10 · 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{6EA3MEW5ZXT6MPA47RQRFE7PLF}

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	2026-05-18T02:57:45.654389Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f101b612ddcde7e63c1cfc611293ef5960f8b89b5e4c46d9afe5de5f430e7b4f

Aliases

arxiv: math/0602210 · arxiv_version: math/0602210v1 · doi: 10.48550/arxiv.math/0602210 · pith_short_12: 6EA3MEW5ZXT6 · pith_short_16: 6EA3MEW5ZXT6MPA4 · pith_short_8: 6EA3MEW5

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/6EA3MEW5ZXT6MPA47RQRFE7PLF \
  | 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: f101b612ddcde7e63c1cfc611293ef5960f8b89b5e4c46d9afe5de5f430e7b4f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "20420b53f6c004b49487843167e623a5baf1be4c6ee7bd7ce457fac1e7f7ec0b",
    "cross_cats_sorted": [
      "math.GT"
    ],
    "license": "",
    "primary_cat": "math.AT",
    "submitted_at": "2006-02-10T10:15:55Z",
    "title_canon_sha256": "c125dea7a91ecf4c69bd9b04d5efaf3a7fb0ade3ddbcc8dd0139ea2e79b014c9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/0602210",
    "kind": "arxiv",
    "version": 1
  }
}