Pith Number

pith:S5D3JEDL

pith:2018:S5D3JEDL7ZVK24UZLWKPGUO466

not attested not anchored not stored refs pending

Problem of Descent Spectrum Equality

Abdelaziz Tajmouati, Hamid Boua

arxiv:1801.09752 v1 · 2018-01-29 · math.SP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{S5D3JEDL7ZVK24UZLWKPGUO466}

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	2026-05-18T00:24:53.924652Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9747b4906bfe6aad72995d94f351dcf7b5615868e069f49bd235a87a7a28f9c1

Aliases

arxiv: 1801.09752 · arxiv_version: 1801.09752v1 · doi: 10.48550/arxiv.1801.09752 · pith_short_12: S5D3JEDL7ZVK · pith_short_16: S5D3JEDL7ZVK24UZ · pith_short_8: S5D3JEDL

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/S5D3JEDL7ZVK24UZLWKPGUO466 \
  | 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: 9747b4906bfe6aad72995d94f351dcf7b5615868e069f49bd235a87a7a28f9c1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "16377aa29eb5f8f4045314d1d9678b0a1c236b72b017e81ea900a6b929994459",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.SP",
    "submitted_at": "2018-01-29T20:54:58Z",
    "title_canon_sha256": "084cba5e7334b947f10bd06b88f0bc5034a2a2d2a834b7ca704264608dc24dc6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1801.09752",
    "kind": "arxiv",
    "version": 1
  }
}