Pith Number

pith:D5BITJVC

pith:2008:D5BITJVCDJ42WM4GI75NNNTKFX

not attested not anchored not stored refs pending

On the construction of A-infinity structures

Johannes Huebschmann

arxiv:0809.4791 v1 · 2008-09-27 · math.AT · 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{D5BITJVCDJ42WM4GI75NNNTKFX}

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	2026-05-18T03:31:31.277397Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1f4289a6a21a79ab338647fad6b66a2ddff00804c6e607ca82ae0cc3bb366213

Aliases

arxiv: 0809.4791 · arxiv_version: 0809.4791v1 · doi: 10.48550/arxiv.0809.4791 · pith_short_12: D5BITJVCDJ42 · pith_short_16: D5BITJVCDJ42WM4G · pith_short_8: D5BITJVC

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/D5BITJVCDJ42WM4GI75NNNTKFX \
  | 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: 1f4289a6a21a79ab338647fad6b66a2ddff00804c6e607ca82ae0cc3bb366213

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "11dc8df82bb3aca8e270cae71523160ecf92dad212afa6417d46de7870aff63b",
    "cross_cats_sorted": [
      "math.AG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AT",
    "submitted_at": "2008-09-27T18:48:20Z",
    "title_canon_sha256": "4a00081d94f7d3973c682462a1d44fcb34d8b0487942a25f29c5ebc3ef2a8d20"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0809.4791",
    "kind": "arxiv",
    "version": 1
  }
}