Pith Number

pith:O5NMIHCH

pith:2017:O5NMIHCH7LNLDUVIRGXW64V7C7

not attested not anchored not stored refs pending

Some characterizations of acyclic maps

G. Raptis

arxiv:1711.08898 v2 · 2017-11-24 · math.AT · math.KT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{O5NMIHCH7LNLDUVIRGXW64V7C7}

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.

Cited by

1 paper in Pith

Modules over algebraic cobordism

Receipt and verification

First computed	2026-05-18T00:16:08.316135Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

775ac41c47fadab1d2a889af6f72bf17edbc294e3e53b1d2694c91f3ffa7f69b

Aliases

arxiv: 1711.08898 · arxiv_version: 1711.08898v2 · doi: 10.48550/arxiv.1711.08898 · pith_short_12: O5NMIHCH7LNL · pith_short_16: O5NMIHCH7LNLDUVI · pith_short_8: O5NMIHCH

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/O5NMIHCH7LNLDUVIRGXW64V7C7 \
  | 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: 775ac41c47fadab1d2a889af6f72bf17edbc294e3e53b1d2694c91f3ffa7f69b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5626bcd58239d17a7b840e67bab37a70adb7a4cca18f0f6bad1d65b82108d844",
    "cross_cats_sorted": [
      "math.KT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AT",
    "submitted_at": "2017-11-24T09:01:38Z",
    "title_canon_sha256": "81359bec2a0f7f856389171f442c9e6a4912d84d4c29d8edd45ecf36bda16b96"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1711.08898",
    "kind": "arxiv",
    "version": 2
  }
}