Pith Number

pith:OQQU5V6Z

pith:2015:OQQU5V6ZBN6H3TMHED2QZNEZKY

not attested not anchored not stored refs pending

Prodirect Manipulation: Bidirectional Programming for the Masses

Ravi Chugh

arxiv:1510.06788 v2 · 2015-10-22 · 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{OQQU5V6ZBN6H3TMHED2QZNEZKY}

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	2026-05-18T01:20:03.417216Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

74214ed7d90b7c7dcd8720f50cb4995610d97946e4a76640a144ebde4e5c4ec9

Aliases

arxiv: 1510.06788 · arxiv_version: 1510.06788v2 · doi: 10.48550/arxiv.1510.06788 · pith_short_12: OQQU5V6ZBN6H · pith_short_16: OQQU5V6ZBN6H3TMH · pith_short_8: OQQU5V6Z

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/OQQU5V6ZBN6H3TMHED2QZNEZKY \
  | 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: 74214ed7d90b7c7dcd8720f50cb4995610d97946e4a76640a144ebde4e5c4ec9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "288799ffd1915d47935eafbb53ce3f7cdde9ed66e89f8c481a09a1c7ea4c1d7c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SE",
    "submitted_at": "2015-10-22T23:44:36Z",
    "title_canon_sha256": "71968e09feffc88d6c6afed7df0a651d45d04a324c1c73fd9532df82cc1c2163"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1510.06788",
    "kind": "arxiv",
    "version": 2
  }
}