Pith Number

pith:RHWU7HD4

pith:2019:RHWU7HD46DQF2YON66VJC6ZPCT

not attested not anchored not stored refs pending

Semantic Preserving Bijective Mappings for Expressions involving Special Functions in Computer Algebra Systems and Document Preparation Systems

Andre Greiner-Petter, Bela Gipp, Howard S. Cohl, Moritz Schubotz

arxiv:1906.11485 v1 · 2019-06-27 · cs.DL · cs.SC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{RHWU7HD46DQF2YON66VJC6ZPCT}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-17T23:42:04.715782Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

89ed4f9c7cf0e05d61cdf7aa917b2f14feea45beef5b034fe00335b08ea64f3d

Aliases

arxiv: 1906.11485 · arxiv_version: 1906.11485v1 · doi: 10.48550/arxiv.1906.11485 · pith_short_12: RHWU7HD46DQF · pith_short_16: RHWU7HD46DQF2YON · pith_short_8: RHWU7HD4

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/RHWU7HD46DQF2YON66VJC6ZPCT \
  | 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: 89ed4f9c7cf0e05d61cdf7aa917b2f14feea45beef5b034fe00335b08ea64f3d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a06b75b9be7acde2957c04eee7f6927d935baaa2158728d18fe2ee5a30bbe82b",
    "cross_cats_sorted": [
      "cs.SC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DL",
    "submitted_at": "2019-06-27T08:08:09Z",
    "title_canon_sha256": "97aea8f2d05adf01acd0dd5eae93b58aa6825a4ad8e8a0ee6a35d97e095f6be2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1906.11485",
    "kind": "arxiv",
    "version": 1
  }
}