Pith Number

pith:7RTTDPXY

pith:2015:7RTTDPXY3NURYDV63XEJWYGLKZ

not attested not anchored not stored refs pending

On the Expressiveness of Joining

Axel Legay (INRIA), Thomas Given-Wilson (Inria)

arxiv:1508.04854 v1 · 2015-08-20 · cs.LO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7RTTDPXY3NURYDV63XEJWYGLKZ}

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	2026-05-18T01:35:01.376104Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fc6731bef8db691c0ebeddc89b60cb567318d5c126c0c5c861c60c4ddd941a41

Aliases

arxiv: 1508.04854 · arxiv_version: 1508.04854v1 · doi: 10.48550/arxiv.1508.04854 · pith_short_12: 7RTTDPXY3NUR · pith_short_16: 7RTTDPXY3NURYDV6 · pith_short_8: 7RTTDPXY

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/7RTTDPXY3NURYDV63XEJWYGLKZ \
  | 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: fc6731bef8db691c0ebeddc89b60cb567318d5c126c0c5c861c60c4ddd941a41

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7cd458785164bef4b6becfb3ddf8edd058ad8c2e02cee19ef71885ede58039c9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2015-08-20T01:41:18Z",
    "title_canon_sha256": "cdb976e9966e8830f9c461438ef26a2cba6b325b61dee05f42a739a17cc63733"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1508.04854",
    "kind": "arxiv",
    "version": 1
  }
}