Pith Number

pith:757HOGYW

pith:2021:757HOGYWWO2CUA6VWJFARL44VV

not attested not anchored not stored refs pending

Towards Verifiable Mutability for Blockchains

Erik Daniel, Florian Tschorsch

arxiv:2106.15935 v1 · 2021-06-30 · cs.CR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{757HOGYWWO2CUA6VWJFARL44VV}

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	2026-07-05T02:54:01.673533Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ff7e771b16b3b42a03d5b24a08af9cad690eef7d2cc51ea8c48919642c831eac

Aliases

arxiv: 2106.15935 · arxiv_version: 2106.15935v1 · doi: 10.48550/arxiv.2106.15935 · pith_short_12: 757HOGYWWO2C · pith_short_16: 757HOGYWWO2CUA6V · pith_short_8: 757HOGYW

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/757HOGYWWO2CUA6VWJFARL44VV \
  | 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: ff7e771b16b3b42a03d5b24a08af9cad690eef7d2cc51ea8c48919642c831eac

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ef4ec22e4b27ec47a91836a870b0e7e30436ec6dc28e7817ad3dd95cdc924b07",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CR",
    "submitted_at": "2021-06-30T09:37:11Z",
    "title_canon_sha256": "5a03515dc4bcd765a4b01fcece3da79524fe9a4de8088a0878e121d79ee6ee9d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2106.15935",
    "kind": "arxiv",
    "version": 1
  }
}