Pith Number

pith:DU6RTMW4

pith:2015:DU6RTMW42WNLDAQSIFYWAMYBAS

not attested not anchored not stored refs pending

Programmatic and Direct Manipulation, Together at Last

Brian Hempel, Jacob Albers, Mitchell Spradlin, Ravi Chugh

arxiv:1507.02988 v3 · 2015-07-10 · 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{DU6RTMW42WNLDAQSIFYWAMYBAS}

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	2026-05-18T01:17:00.660062Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1d3d19b2dcd59ab18212417160330104b07bab04496477acbf902fbc8dc137f4

Aliases

arxiv: 1507.02988 · arxiv_version: 1507.02988v3 · doi: 10.48550/arxiv.1507.02988 · pith_short_12: DU6RTMW42WNL · pith_short_16: DU6RTMW42WNLDAQS · pith_short_8: DU6RTMW4

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/DU6RTMW42WNLDAQSIFYWAMYBAS \
  | 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: 1d3d19b2dcd59ab18212417160330104b07bab04496477acbf902fbc8dc137f4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "085f495a973ee847c13ba887ba54d6517ca159710e07c1837d9172a9641d065b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.PL",
    "submitted_at": "2015-07-10T18:55:56Z",
    "title_canon_sha256": "9fec79c7df4169dc6733976555d78b840f717fe783338e4b28848bc9057319a7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1507.02988",
    "kind": "arxiv",
    "version": 3
  }
}