Pith Number

pith:65TJCDXC

pith:2026:65TJCDXC2UOMF62SGKGXEZW4T3

not attested not anchored not stored refs pending

Erdal \.In\"on\"u at 100: From the Sphere to the Plane

Ilmar Gahramanov

arxiv:2606.12452 v1 · 2026-06-04 · physics.hist-ph · math-ph · math.HO · math.MP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{65TJCDXC2UOMF62SGKGXEZW4T3}

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	2026-06-12T00:07:51.119712Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f766910ee2d51cc2fb52328d7266dc9ecde5e5ef3b17c489c91c5be9a1eed8b7

Aliases

arxiv: 2606.12452 · arxiv_version: 2606.12452v1 · doi: 10.48550/arxiv.2606.12452 · pith_short_12: 65TJCDXC2UOM · pith_short_16: 65TJCDXC2UOMF62S · pith_short_8: 65TJCDXC

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/65TJCDXC2UOMF62SGKGXEZW4T3 \
  | 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: f766910ee2d51cc2fb52328d7266dc9ecde5e5ef3b17c489c91c5be9a1eed8b7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7236edb4f4b93a746736c05ed899ffe64835bb6dad872967ca551885fab29d44",
    "cross_cats_sorted": [
      "math-ph",
      "math.HO",
      "math.MP"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "physics.hist-ph",
    "submitted_at": "2026-06-04T15:16:37Z",
    "title_canon_sha256": "5a0dfb819503b2d4b4e20374e476e34662e1bcb67cf14200b1e858469afcf4ac"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.12452",
    "kind": "arxiv",
    "version": 1
  }
}