Pith Number

pith:JPT4HHUI

pith:2015:JPT4HHUIK4OBPGZHE4PJA2CRQY

not attested not anchored not stored refs pending

A flag representation of projection functions

Daniel Hug, Jan Rataj, Paul Goodey, Wolfgang Weil, Wolfram Hinderer

arxiv:1502.06747 v1 · 2015-02-24 · math.MG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{JPT4HHUIK4OBPGZHE4PJA2CRQY}

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	2026-05-18T02:26:28.731332Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4be7c39e88571c179b27271e9068518622e109e6ee95577eb3b98f5ba93e8997

Aliases

arxiv: 1502.06747 · arxiv_version: 1502.06747v1 · doi: 10.48550/arxiv.1502.06747 · pith_short_12: JPT4HHUIK4OB · pith_short_16: JPT4HHUIK4OBPGZH · pith_short_8: JPT4HHUI

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/JPT4HHUIK4OBPGZHE4PJA2CRQY \
  | 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: 4be7c39e88571c179b27271e9068518622e109e6ee95577eb3b98f5ba93e8997

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f74eb871bd54106114d9c5a3b751d99762831f487ffce825d587452b3934377c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.MG",
    "submitted_at": "2015-02-24T10:15:36Z",
    "title_canon_sha256": "495dc2ad3ae63c017c625087fed7c4fe8f31d395b150b9176aa5da3f044e2107"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1502.06747",
    "kind": "arxiv",
    "version": 1
  }
}