Pith Number

pith:K6U3LFMF

pith:2019:K6U3LFMFX5R4LN5N3EOADFX57E

not attested not anchored not stored refs pending

Blockchain Mutability: Challenges and Proposed Solutions

Constantinos Patsakis, Efthimios Alepis, Eugenia Politou, Fran Casino

arxiv:1907.07099 v1 · 2019-07-16 · 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{K6U3LFMFX5R4LN5N3EOADFX57E}

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	2026-05-17T23:40:28.099088Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

57a9b59585bf63c5b7add91c0196fdf9307f870b40efee7a52c78e261b9e9bb6

Aliases

arxiv: 1907.07099 · arxiv_version: 1907.07099v1 · doi: 10.48550/arxiv.1907.07099 · pith_short_12: K6U3LFMFX5R4 · pith_short_16: K6U3LFMFX5R4LN5N · pith_short_8: K6U3LFMF

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/K6U3LFMFX5R4LN5N3EOADFX57E \
  | 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: 57a9b59585bf63c5b7add91c0196fdf9307f870b40efee7a52c78e261b9e9bb6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e3c531b4358de69fd1e24a7ef9a20878e203278060924de94f715d7524e6a5c7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CR",
    "submitted_at": "2019-07-16T16:23:25Z",
    "title_canon_sha256": "8c181fc1235d9314a1069b2d7fdd7559447e0382894a5531d4d390ad4e23b796"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.07099",
    "kind": "arxiv",
    "version": 1
  }
}