Pith Number

pith:LQ62LCXQ

pith:2015:LQ62LCXQFLQ5BLUGQJUJYEGF26

not attested not anchored not stored refs pending

Functorial Data Migration: From Theory to Practice

David I. Spivak, Eswaran Subrahmanian, Patrick Schultz, Ryan Wisnesky

arxiv:1502.05947 v2 · 2015-02-20 · cs.DB

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{LQ62LCXQFLQ5BLUGQJUJYEGF26}

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	2026-05-18T02:12:10.798523Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5c3da58af02ae1d0ae8682689c10c5d793d43eae81fece6aceb7c9529f9bc8fb

Aliases

arxiv: 1502.05947 · arxiv_version: 1502.05947v2 · doi: 10.48550/arxiv.1502.05947 · pith_short_12: LQ62LCXQFLQ5 · pith_short_16: LQ62LCXQFLQ5BLUG · pith_short_8: LQ62LCXQ

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/LQ62LCXQFLQ5BLUGQJUJYEGF26 \
  | 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: 5c3da58af02ae1d0ae8682689c10c5d793d43eae81fece6aceb7c9529f9bc8fb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "57952ba95b84136ead992d5982b12ca0e8f8d552323b2057c4a0484ec00455c3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DB",
    "submitted_at": "2015-02-20T17:41:40Z",
    "title_canon_sha256": "2b769175bb189c229f1c1f1794e14526d2925520148d891bc4d8dcbd462b1b67"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1502.05947",
    "kind": "arxiv",
    "version": 2
  }
}