Pith Number

pith:R5TBHU7Z

pith:2017:R5TBHU7ZVLY34TTCMKBVQ6VULP

not attested not anchored not stored refs pending

Special Guards in Chromatic Art Gallery

Hamid Hoorfar

arxiv:1709.02996 v2 · 2017-09-09 · cs.CG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{R5TBHU7ZVLY34TTCMKBVQ6VULP}

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	2026-05-18T00:30:16.421590Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8f6613d3f9aaf1be4e626283587ab45bf3c6609df25183c729fd1e4a7f85f01b

Aliases

arxiv: 1709.02996 · arxiv_version: 1709.02996v2 · doi: 10.48550/arxiv.1709.02996 · pith_short_12: R5TBHU7ZVLY3 · pith_short_16: R5TBHU7ZVLY34TTC · pith_short_8: R5TBHU7Z

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/R5TBHU7ZVLY34TTCMKBVQ6VULP \
  | 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: 8f6613d3f9aaf1be4e626283587ab45bf3c6609df25183c729fd1e4a7f85f01b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a6b387a892d42a7e0474974556a26c75bd9e84cb149ce1c741733b878dbacecc",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CG",
    "submitted_at": "2017-09-09T19:20:43Z",
    "title_canon_sha256": "4706013e2d716431ff4bb6a0134a9f0ed862ea5f629b329652e0934d413cfef8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1709.02996",
    "kind": "arxiv",
    "version": 2
  }
}