Pith Number

pith:EZYLI5XS

pith:2019:EZYLI5XSUENIDJG7U25HBUNBUK

not attested not anchored not stored refs pending

Towards a taxonomy of atlases and of morphisms between them

Seymour J. Metz

arxiv:1906.11690 v1 · 2019-06-25 · 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{EZYLI5XSUENIDJG7U25HBUNBUK}

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	2026-05-17T23:42:04.076059Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2670b476f2a11a81a4dfa6ba70d1a1a299ee3caed4912964561a810d5245665f

Aliases

arxiv: 1906.11690 · arxiv_version: 1906.11690v1 · doi: 10.48550/arxiv.1906.11690 · pith_short_12: EZYLI5XSUENI · pith_short_16: EZYLI5XSUENIDJG7 · pith_short_8: EZYLI5XS

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/EZYLI5XSUENIDJG7U25HBUNBUK \
  | 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: 2670b476f2a11a81a4dfa6ba70d1a1a299ee3caed4912964561a810d5245665f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "36682e6995e9c54490334bc35ae0e8f19e05266fa80cf8ebb693ac5cb66a9b0c",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "math.AT",
    "submitted_at": "2019-06-25T20:22:16Z",
    "title_canon_sha256": "37e51ff652676af8360c521fa141b6f0e0047f54f9dc5c663c4e619131704a13"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1906.11690",
    "kind": "arxiv",
    "version": 1
  }
}