Pith Number

pith:2QWTOD22

pith:2017:2QWTOD22JYFLHUGTYNEMACT6AX

not attested not anchored not stored refs pending

On the Structural Theorem of Persistent Homology

Andrei Pavlichenko, Jan Segert, Killian Meehan

arxiv:1701.02055 v5 · 2017-01-09 · 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{2QWTOD22JYFLHUGTYNEMACT6AX}

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	2026-05-18T00:04:32.699396Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d42d370f5a4e0ab3d0d3c348c00a7e05d1784ec2fcac46b074079aa34d66bb32

Aliases

arxiv: 1701.02055 · arxiv_version: 1701.02055v5 · doi: 10.48550/arxiv.1701.02055 · pith_short_12: 2QWTOD22JYFL · pith_short_16: 2QWTOD22JYFLHUGT · pith_short_8: 2QWTOD22

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/2QWTOD22JYFLHUGTYNEMACT6AX \
  | 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: d42d370f5a4e0ab3d0d3c348c00a7e05d1784ec2fcac46b074079aa34d66bb32

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a19b271c0552a8f821be1b986d04284741c3136ff6f7c53b00502883cd4e30a8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AT",
    "submitted_at": "2017-01-09T02:21:17Z",
    "title_canon_sha256": "48c2f34037b6691292a7f42fd7fc442c3c6e2802d61eb9952d5ca5cdab676cdb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1701.02055",
    "kind": "arxiv",
    "version": 5
  }
}