Pith Number

pith:WAEONFQD

pith:2018:WAEONFQDNRJMVZLB7NKKZZUEQG

not attested not anchored not stored refs pending

Mod 2 cohomology ring of a kind of orbit configuration space

Hao Li

arxiv:1812.10104 v1 · 2018-12-25 · 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{WAEONFQDNRJMVZLB7NKKZZUEQG}

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	2026-05-17T23:57:25.084209Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b008e696036c52cae561fb54ace68481a6fd47bb8aac26f023e1bf77cc23f616

Aliases

arxiv: 1812.10104 · arxiv_version: 1812.10104v1 · doi: 10.48550/arxiv.1812.10104 · pith_short_12: WAEONFQDNRJM · pith_short_16: WAEONFQDNRJMVZLB · pith_short_8: WAEONFQD

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/WAEONFQDNRJMVZLB7NKKZZUEQG \
  | 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: b008e696036c52cae561fb54ace68481a6fd47bb8aac26f023e1bf77cc23f616

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1c6fcb78f745ce0de0ef0fa60ab0de84a6209ddbb701d5d913d6641e26270760",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.AT",
    "submitted_at": "2018-12-25T13:36:43Z",
    "title_canon_sha256": "27244834a246b59bd025f054a35712d9cbb91ce56c407255b853814700c6fd89"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1812.10104",
    "kind": "arxiv",
    "version": 1
  }
}