Pith Number

pith:7JJYFM3R

pith:2018:7JJYFM3RADYQNUSVN5G5PZ7T6L

not attested not anchored not stored refs pending

Tetrahedra and Relative Directions in Space, Using 2 and 3-Space Simplexes for 3-Space Localization

Jan Carlo Barca, Kevin Acres

arxiv:1810.07316 v1 · 2018-10-16 · eess.SP · cs.RO · 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{7JJYFM3RADYQNUSVN5G5PZ7T6L}

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	2026-05-18T00:02:58.843774Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fa5382b37100f106d2556f4dd7e7f3f2d25f3aa39020b8b2d772c0e1a353c855

Aliases

arxiv: 1810.07316 · arxiv_version: 1810.07316v1 · doi: 10.48550/arxiv.1810.07316 · pith_short_12: 7JJYFM3RADYQ · pith_short_16: 7JJYFM3RADYQNUSV · pith_short_8: 7JJYFM3R

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/7JJYFM3RADYQNUSVN5G5PZ7T6L \
  | 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: fa5382b37100f106d2556f4dd7e7f3f2d25f3aa39020b8b2d772c0e1a353c855

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "daed45d1c512c0126f0de44fd11a1d0aa2a27d19f35390989b3aead9f78c95b1",
    "cross_cats_sorted": [
      "cs.RO",
      "math.AG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "eess.SP",
    "submitted_at": "2018-10-16T23:50:35Z",
    "title_canon_sha256": "522d520cf6729cb253c69ff0a3cdcb605102f74154f15cc2c16551f6f48f15bb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1810.07316",
    "kind": "arxiv",
    "version": 1
  }
}