Pith Number

pith:HTY7P6SU

pith:2010:HTY7P6SU4MZTX5LN6MEPDQE2R6

not attested not anchored not stored refs pending

Stems and Spectral Sequences

David Blanc, Hans-Joachim Baues

arxiv:1008.4266 v1 · 2010-08-25 · math.AT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HTY7P6SU4MZTX5LN6MEPDQE2R6}

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	2026-05-18T02:41:50.768845Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3cf1f7fa54e3333bf56df308f1c09a8fa889221a353e74664824b5430044311f

Aliases

arxiv: 1008.4266 · arxiv_version: 1008.4266v1 · doi: 10.48550/arxiv.1008.4266 · pith_short_12: HTY7P6SU4MZT · pith_short_16: HTY7P6SU4MZTX5LN · pith_short_8: HTY7P6SU

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/HTY7P6SU4MZTX5LN6MEPDQE2R6 \
  | 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: 3cf1f7fa54e3333bf56df308f1c09a8fa889221a353e74664824b5430044311f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ce7b000ccd630b8f98aeac9e2a0708eba6ad49d9a909a500b90a9f13ae0f5be6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AT",
    "submitted_at": "2010-08-25T12:53:53Z",
    "title_canon_sha256": "9ee4bcd6880df005d800acdf6a6519f17d49c2b93b711a5605bcb8006678f27e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1008.4266",
    "kind": "arxiv",
    "version": 1
  }
}