Pith Number

pith:TQ3HWBXM

pith:2009:TQ3HWBXM3KCSWXWWDRHM5L4G6O

not attested not anchored not stored refs pending

Introduction of Empirical Topology in Construction of Relationship Networks of Informative Objects

Amir H. Assadi, Hesam T. Dashti, Mary E. Kloc, Rita A. Ribeiro, Tiago Simas

arxiv:0912.4986 v1 · 2009-12-25 · astro-ph.IM · astro-ph.CO · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{TQ3HWBXM3KCSWXWWDRHM5L4G6O}

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	2026-05-18T04:08:04.038605Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9c367b06ecda852b5ed61c4eceaf86f39c9f1f813b679ea50fc82e68d31aa9e7

Aliases

arxiv: 0912.4986 · arxiv_version: 0912.4986v1 · doi: 10.48550/arxiv.0912.4986 · pith_short_12: TQ3HWBXM3KCS · pith_short_16: TQ3HWBXM3KCSWXWW · pith_short_8: TQ3HWBXM

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/TQ3HWBXM3KCSWXWWDRHM5L4G6O \
  | 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: 9c367b06ecda852b5ed61c4eceaf86f39c9f1f813b679ea50fc82e68d31aa9e7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7b706fdb0e6a9e50532deb81ad500b9803c5387208d7d72acd1d647ccdefee50",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2009-12-25T22:27:27Z",
    "title_canon_sha256": "3cfafdf71f97c81bb58d11468cd8adb5c13b1f832343a66dc3904691104c3f42"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0912.4986",
    "kind": "arxiv",
    "version": 1
  }
}