Pith Number

pith:SDJLL3DG

pith:2018:SDJLL3DGR7BO5G4L3TX35SBLKG

not attested not anchored not stored refs pending

Data provenance tracking as the basis for a biomedical virtual research environment

Richard McClatchey

arxiv:1803.07433 v1 · 2018-03-19 · 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{SDJLL3DGR7BO5G4L3TX35SBLKG}

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	2026-05-18T00:20:33.240901Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

90d2b5ec668fc2ee9b8bdcefbec82b518e720a0b801538545dd9c84696d3e552

Aliases

arxiv: 1803.07433 · arxiv_version: 1803.07433v1 · doi: 10.48550/arxiv.1803.07433 · pith_short_12: SDJLL3DGR7BO · pith_short_16: SDJLL3DGR7BO5G4L · pith_short_8: SDJLL3DG

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/SDJLL3DGR7BO5G4L3TX35SBLKG \
  | 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: 90d2b5ec668fc2ee9b8bdcefbec82b518e720a0b801538545dd9c84696d3e552

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "968e2efe45a4ef63809627a99842b69cf1094520674bc078f6d36d1d4e5461de",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "cs.SE",
    "submitted_at": "2018-03-19T08:55:59Z",
    "title_canon_sha256": "6e16ab839945be110b01e778b65865a9d99d1af1d4f15a5244f16e1b8719b387"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1803.07433",
    "kind": "arxiv",
    "version": 1
  }
}