Pith Number

pith:TKENOCEQ

pith:2017:TKENOCEQR4JTTN2PL3AGZN4S6J

not attested not anchored not stored refs pending

Round-Trip Sketches: Supporting the Lifecycle of Software Development Sketches from Analog to Digital and Back

Fabrice Hollerich, Sebastian Baltes, Stephan Diehl

arxiv:1708.01787 v1 · 2017-08-05 · cs.SE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{TKENOCEQR4JTTN2PL3AGZN4S6J}

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	2026-05-18T00:38:33.155943Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9a88d708908f1339b74f5ec06cb792f266a337b545518912d88be5bcb693ef68

Aliases

arxiv: 1708.01787 · arxiv_version: 1708.01787v1 · doi: 10.48550/arxiv.1708.01787 · pith_short_12: TKENOCEQR4JT · pith_short_16: TKENOCEQR4JTTN2P · pith_short_8: TKENOCEQ

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/TKENOCEQR4JTTN2PL3AGZN4S6J \
  | 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: 9a88d708908f1339b74f5ec06cb792f266a337b545518912d88be5bcb693ef68

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "df92664740ea2a850486224f5759334653830517608dfac4a34bcb514fe58ed8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SE",
    "submitted_at": "2017-08-05T16:18:07Z",
    "title_canon_sha256": "b7a4842a1e0592863469c0f08c7cce4f88644b19211746f241247ab1138f12e1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1708.01787",
    "kind": "arxiv",
    "version": 1
  }
}