Pith Number

pith:YHBKNYHB

pith:2013:YHBKNYHBAP2CKE45HT5WS7T3K3

not attested not anchored not stored refs pending

Software Engineering as Instrumentation for the Long Tail of Scientific Software

Daisie Huang, Hilmar Lapp

arxiv:1309.1806 v1 · 2013-09-07 · 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{YHBKNYHBAP2CKE45HT5WS7T3K3}

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	2026-05-18T03:13:57.483381Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c1c2a6e0e103f425139d3cfb697e7b56f25fbcedec53727042d39e6f1fa151a2

Aliases

arxiv: 1309.1806 · arxiv_version: 1309.1806v1 · doi: 10.48550/arxiv.1309.1806 · pith_short_12: YHBKNYHBAP2C · pith_short_16: YHBKNYHBAP2CKE45 · pith_short_8: YHBKNYHB

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/YHBKNYHBAP2CKE45HT5WS7T3K3 \
  | 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: c1c2a6e0e103f425139d3cfb697e7b56f25fbcedec53727042d39e6f1fa151a2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c03f1e474a5ef3fbad35c0fdcf637567c2428f6ec2a668196e4ca4d0469fe24f",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/3.0/",
    "primary_cat": "cs.SE",
    "submitted_at": "2013-09-07T02:31:43Z",
    "title_canon_sha256": "9d4a0ebf6eb53bbe9fe4b32e65a66b94e80a79c4b11f73077209c2301d80aa8c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1309.1806",
    "kind": "arxiv",
    "version": 1
  }
}