Pith Number

pith:RWXXKQQM

pith:2017:RWXXKQQMHEIUOY54CBYEKVAF3P

not attested not anchored not stored refs pending

Quasi-units as orthogonal projections

Tam\'as Titkos, Zsigmond Tarcsay

arxiv:1801.00107 v1 · 2017-12-30 · math.FA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{RWXXKQQMHEIUOY54CBYEKVAF3P}

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	2026-05-18T00:26:59.409253Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8daf75420c39114763bc1070455405dbc6159e75375d0cb1797cccc1f39fd879

Aliases

arxiv: 1801.00107 · arxiv_version: 1801.00107v1 · doi: 10.48550/arxiv.1801.00107 · pith_short_12: RWXXKQQMHEIU · pith_short_16: RWXXKQQMHEIUOY54 · pith_short_8: RWXXKQQM

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/RWXXKQQMHEIUOY54CBYEKVAF3P \
  | 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: 8daf75420c39114763bc1070455405dbc6159e75375d0cb1797cccc1f39fd879

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ea5817c31bbfedfb3c0b7ffc653d89b1ade88c9f2b6b32d600fffb7dd35e5364",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.FA",
    "submitted_at": "2017-12-30T09:36:59Z",
    "title_canon_sha256": "e0c28035f6e4d651026b5f945ee339ca98ec981f17d8ca43edcfe9b3a75adbb9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1801.00107",
    "kind": "arxiv",
    "version": 1
  }
}