Pith Number

pith:TM7IKH2J

pith:2019:TM7IKH2JXUJSBDS6HUI5VBAU4R

not attested not anchored not stored refs pending

The Hilbert curve of a 4-dimensional scroll with a divisorial fiber

Andrea Luigi Tironi, Antonio Lanteri

arxiv:1902.09942 v1 · 2019-02-26 · math.AG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{TM7IKH2JXUJSBDS6HUI5VBAU4R}

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	2026-05-17T23:52:35.005494Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9b3e851f49bd13208e5e3d11da8414e45fac0b0e0a9b3595f2d68822c257bcd5

Aliases

arxiv: 1902.09942 · arxiv_version: 1902.09942v1 · doi: 10.48550/arxiv.1902.09942 · pith_short_12: TM7IKH2JXUJS · pith_short_16: TM7IKH2JXUJSBDS6 · pith_short_8: TM7IKH2J

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/TM7IKH2JXUJSBDS6HUI5VBAU4R \
  | 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: 9b3e851f49bd13208e5e3d11da8414e45fac0b0e0a9b3595f2d68822c257bcd5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2f250ba6dd6676ee317698ce6cf7c73ef2a704f1b8d573d0a529f11f1f6b3893",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2019-02-26T14:06:54Z",
    "title_canon_sha256": "d77ccc2cb70d7a6c6d673805213279a798b0329da78a13876af9e68bd42c72f8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.09942",
    "kind": "arxiv",
    "version": 1
  }
}