Pith Number

pith:R7Y764SB

pith:2015:R7Y764SBLNVXAFF6VQZLZFTAG7

not attested not anchored not stored refs pending

Hindman's theorem and idempotent types

Isaac Goldbring, Uri Andrews

arxiv:1508.03613 v1 · 2015-08-12 · math.LO · math.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{R7Y764SBLNVXAFF6VQZLZFTAG7}

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	2026-05-18T01:35:17.126017Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8ff1ff72415b6b7014beac32bc966037eb68ce3b7228688e2b03ad0cc8d7c5df

Aliases

arxiv: 1508.03613 · arxiv_version: 1508.03613v1 · doi: 10.48550/arxiv.1508.03613 · pith_short_12: R7Y764SBLNVX · pith_short_16: R7Y764SBLNVXAFF6 · pith_short_8: R7Y764SB

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/R7Y764SBLNVXAFF6VQZLZFTAG7 \
  | 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: 8ff1ff72415b6b7014beac32bc966037eb68ce3b7228688e2b03ad0cc8d7c5df

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a218184d5df171f77205ef4bf10c573597a5592156278f50d44622b8dc697626",
    "cross_cats_sorted": [
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2015-08-12T20:36:26Z",
    "title_canon_sha256": "8b7e7693e36612094e562dee31608049a49c04ad4edf56ef6f94b60f5d789c6d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1508.03613",
    "kind": "arxiv",
    "version": 1
  }
}