Pith Number

pith:TFTJ3EWV

pith:2011:TFTJ3EWVCZ24UTL7WZEGAKQWWF

not attested not anchored not stored refs pending

Topological and algebraic structures on the ring of Fermat reals

Michael Kunzinger, Paolo Giordano

arxiv:1104.1492 v1 · 2011-04-08 · math.AC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{TFTJ3EWVCZ24UTL7WZEGAKQWWF}

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	2026-05-18T02:54:53.905939Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

99669d92d51675ca4d7fb648602a16b14833ac9dbc467b4549787a706ae4d4db

Aliases

arxiv: 1104.1492 · arxiv_version: 1104.1492v1 · doi: 10.48550/arxiv.1104.1492 · pith_short_12: TFTJ3EWVCZ24 · pith_short_16: TFTJ3EWVCZ24UTL7 · pith_short_8: TFTJ3EWV

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/TFTJ3EWVCZ24UTL7WZEGAKQWWF \
  | 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: 99669d92d51675ca4d7fb648602a16b14833ac9dbc467b4549787a706ae4d4db

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "10de4043ce40673a2ff71e4e4b2d1ee824474cae3b255071bfca7179d0a91583",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AC",
    "submitted_at": "2011-04-08T06:02:25Z",
    "title_canon_sha256": "8179ddf7952ffa2f0015b32d0613f642997c7d1145cbc279746706751de61dd0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1104.1492",
    "kind": "arxiv",
    "version": 1
  }
}