Pith Number

pith:7JAYNTCK

pith:2015:7JAYNTCKWQQJO7A7SE6KFXMWBY

not attested not anchored not stored refs pending

Taxotopy Theory of Posets I: van Kampen Theorems

Amit Kuber, David Wilding

arxiv:1510.08921 v1 · 2015-10-29 · math.CT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7JAYNTCKWQQJO7A7SE6KFXMWBY}

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	2026-05-18T01:28:24.270999Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fa4186cc4ab420977c1f913ca2dd960e17a18a25442520b56cfdaf53f0f4911f

Aliases

arxiv: 1510.08921 · arxiv_version: 1510.08921v1 · doi: 10.48550/arxiv.1510.08921 · pith_short_12: 7JAYNTCKWQQJ · pith_short_16: 7JAYNTCKWQQJO7A7 · pith_short_8: 7JAYNTCK

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/7JAYNTCKWQQJO7A7SE6KFXMWBY \
  | 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: fa4186cc4ab420977c1f913ca2dd960e17a18a25442520b56cfdaf53f0f4911f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6250ae40bcaa6e6942fab575665fcca3379d38e63ef077b14d9040e0f06cd8d4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CT",
    "submitted_at": "2015-10-29T21:55:37Z",
    "title_canon_sha256": "b4ad9d55fb7f5a53d28f297024e0002d7d900bbf89fbb2c7fcdee4ec17dfe592"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1510.08921",
    "kind": "arxiv",
    "version": 1
  }
}