Pith Number

pith:RTNZ7L4A

pith:2017:RTNZ7L4A4TPFHH6DFHFZKFCNLB

not attested not anchored not stored refs pending

Hyperbolic isometries and boundaries of systolic complexes

Tomasz Prytu{\l}a

arxiv:1705.01062 v1 · 2017-05-02 · math.GR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{RTNZ7L4A4TPFHH6DFHFZKFCNLB}

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	2026-05-18T00:00:45.974124Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8cdb9faf80e4de539fc329cb95144d586167f6c1e7a73e66f16065247434654d

Aliases

arxiv: 1705.01062 · arxiv_version: 1705.01062v1 · doi: 10.48550/arxiv.1705.01062 · pith_short_12: RTNZ7L4A4TPF · pith_short_16: RTNZ7L4A4TPFHH6D · pith_short_8: RTNZ7L4A

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/RTNZ7L4A4TPFHH6DFHFZKFCNLB \
  | 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: 8cdb9faf80e4de539fc329cb95144d586167f6c1e7a73e66f16065247434654d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c4870d57bc965607058abb25a2c8c3082194aef1f6a6f1ba99078eb205e7c3e3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GR",
    "submitted_at": "2017-05-02T16:42:47Z",
    "title_canon_sha256": "4829c23d13e17e3163b6460d3aac0e85127c6f6b3c68a3032b5dbc11060163cc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1705.01062",
    "kind": "arxiv",
    "version": 1
  }
}