Pith Number

pith:FGQ7K2OA

pith:2021:FGQ7K2OAE3AU3V3QELDN3JLZEC

not attested not anchored not stored refs pending

Chu representations of categories related to constructive mathematics

Iosif Petrakis

arxiv:2106.01878 v1 · 2021-06-03 · 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{FGQ7K2OAE3AU3V3QELDN3JLZEC}

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	2026-07-05T02:46:05.300945Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

29a1f569c026c14dd77022c6dda5792098dc4f1f5e7241dd3e5d2d2e8e74ebef

Aliases

arxiv: 2106.01878 · arxiv_version: 2106.01878v1 · doi: 10.48550/arxiv.2106.01878 · pith_short_12: FGQ7K2OAE3AU · pith_short_16: FGQ7K2OAE3AU3V3Q · pith_short_8: FGQ7K2OA

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/FGQ7K2OAE3AU3V3QELDN3JLZEC \
  | 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: 29a1f569c026c14dd77022c6dda5792098dc4f1f5e7241dd3e5d2d2e8e74ebef

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e358da6c52300a2e84dc852a2cd3749b51360e5e62d74871f37a98c3856ffacf",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.CT",
    "submitted_at": "2021-06-03T14:23:02Z",
    "title_canon_sha256": "65ff75e6e18e6461e05c19525285ecab02a17bd044d51bea11122d8d1536e03f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2106.01878",
    "kind": "arxiv",
    "version": 1
  }
}