Pith Number

pith:T4S6HLOB

pith:2014:T4S6HLOBUG5AAB3TOUF53VRZW4

not attested not anchored not stored refs pending

A-infinity-algebras, spectral sequences and exact couples

Estanislao Herscovich

arxiv:1410.6728 v1 · 2014-10-24 · math.KT · math.AT · math.RA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{T4S6HLOBUG5AAB3TOUF53VRZW4}

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	2026-05-18T02:39:24.694811Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9f25e3adc1a1ba000773750bddd639b73da86d2bb7280f469769235a91f457b1

Aliases

arxiv: 1410.6728 · arxiv_version: 1410.6728v1 · doi: 10.48550/arxiv.1410.6728 · pith_short_12: T4S6HLOBUG5A · pith_short_16: T4S6HLOBUG5AAB3T · pith_short_8: T4S6HLOB

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/T4S6HLOBUG5AAB3TOUF53VRZW4 \
  | 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: 9f25e3adc1a1ba000773750bddd639b73da86d2bb7280f469769235a91f457b1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "125c852f4c1ef3ec4dd55490c3e32f0df27d8e0c470659a33f10c06b1066927b",
    "cross_cats_sorted": [
      "math.AT",
      "math.RA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.KT",
    "submitted_at": "2014-10-24T16:16:41Z",
    "title_canon_sha256": "27d023158a5052a29c7421eaea77563af05c7d3ad54cd6d77d731491460ffc22"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1410.6728",
    "kind": "arxiv",
    "version": 1
  }
}