Pith Number

pith:4OBFCYMY

pith:2019:4OBFCYMYZ3YS7RAGLXABDDQNTH

not attested not anchored not stored refs pending

How to Place Your Apps in the Fog -- State of the Art and Open Challenges

Antonio Brogi, Carlos Guerrero, Isaac Lera, Stefano Forti

arxiv:1901.05717 v2 · 2019-01-17 · cs.DC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4OBFCYMYZ3YS7RAGLXABDDQNTH}

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	2026-07-05T00:22:23.283790Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e382516198cef12fc4065dc0118e0d99cbaf6b9cb47ac6d140c4ba7049800427

Aliases

arxiv: 1901.05717 · arxiv_version: 1901.05717v2 · doi: 10.48550/arxiv.1901.05717 · pith_short_12: 4OBFCYMYZ3YS · pith_short_16: 4OBFCYMYZ3YS7RAG · pith_short_8: 4OBFCYMY

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/4OBFCYMYZ3YS7RAGLXABDDQNTH \
  | 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: e382516198cef12fc4065dc0118e0d99cbaf6b9cb47ac6d140c4ba7049800427

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a9d8fdf6e3bf5f592cc8281bb85b54b75b951d445e7d0e712c0abfe5e2c74ed8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DC",
    "submitted_at": "2019-01-17T10:21:27Z",
    "title_canon_sha256": "c85fa50b1bf9f56d5f38e309cf3355cf5d4b977e622d0e7308ac3fcade3145dd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.05717",
    "kind": "arxiv",
    "version": 2
  }
}