Pith Number

pith:UIBKGWES

pith:2014:UIBKGWESVMDDWSYHL56AE3H4SY

not attested not anchored not stored refs pending

Steenrod coalgebras

Justin Smith

arxiv:1401.3618 v16 · 2014-01-15 · 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{UIBKGWESVMDDWSYHL56AE3H4SY}

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	2026-05-18T02:25:32.775069Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a202a35892ab063b4b075f7c026cfc960fff1a1d775c7596a569a19f2e8dacd8

Aliases

arxiv: 1401.3618 · arxiv_version: 1401.3618v16 · doi: 10.48550/arxiv.1401.3618 · pith_short_12: UIBKGWESVMDD · pith_short_16: UIBKGWESVMDDWSYH · pith_short_8: UIBKGWES

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/UIBKGWESVMDDWSYHL56AE3H4SY \
  | 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: a202a35892ab063b4b075f7c026cfc960fff1a1d775c7596a569a19f2e8dacd8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8ffa1c76f992100e58e23d522a00cc06bdf2fc356a6cb2c1daafef025fb6f7f6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AT",
    "submitted_at": "2014-01-15T14:53:50Z",
    "title_canon_sha256": "65178b228dee7b88073856dca7f4280d662ed28743e7d735c95c5410fee799ef"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1401.3618",
    "kind": "arxiv",
    "version": 16
  }
}