Pith Number

pith:GPTZ4WDA

pith:2019:GPTZ4WDAT5TIDM2BPEGKLR34SV

not attested not anchored not stored refs pending

Crumbling Abstract Machines

Andrea Condoluci, Beniamino Accattoli, Claudio Sacerdoti Coen, Giulio Guerrieri

arxiv:1907.06057 v1 · 2019-07-13 · cs.LO · cs.PL

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{GPTZ4WDAT5TIDM2BPEGKLR34SV}

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.

Cited by

1 paper in Pith

A Reversible Crumbling Abstract Machine for Plotkin's Call-by-Value

Receipt and verification

First computed	2026-05-17T23:40:42.563537Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

33e79e58609f6681b341790ca5c77c95607fbe4a4a8802d6e5b51ac7d6c15326

Aliases

arxiv: 1907.06057 · arxiv_version: 1907.06057v1 · doi: 10.48550/arxiv.1907.06057 · pith_short_12: GPTZ4WDAT5TI · pith_short_16: GPTZ4WDAT5TIDM2B · pith_short_8: GPTZ4WDA

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/GPTZ4WDAT5TIDM2BPEGKLR34SV \
  | 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: 33e79e58609f6681b341790ca5c77c95607fbe4a4a8802d6e5b51ac7d6c15326

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "97ea6ced52b3dfbf606a0b0aa7aac71225b14dd2210872343e3ce89210fbe71e",
    "cross_cats_sorted": [
      "cs.PL"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2019-07-13T11:46:02Z",
    "title_canon_sha256": "5243e373bcaadac25c6657dba77757a7ad2109c7d0fac17b0568f3d23fd478d6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.06057",
    "kind": "arxiv",
    "version": 1
  }
}