Pith Number

pith:BVYNLNEP

pith:2005:BVYNLNEPJPRLU4OEO776KA2NIK

not attested not anchored not stored refs pending

Algebraic models of Poincare embeddings

Don Stanley, Pascal Lambrechts

arxiv:math/0503605 v1 · 2005-03-25 · math.AT · math.GT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BVYNLNEPJPRLU4OEO776KA2NIK}

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	2026-05-18T02:41:32.069407Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0d70d5b48f4be2ba71c477ffe5034d42b0f2e9a90e3cf9e87a8b70abd840bcb7

Aliases

arxiv: math/0503605 · arxiv_version: math/0503605v1 · doi: 10.48550/arxiv.math/0503605 · pith_short_12: BVYNLNEPJPRL · pith_short_16: BVYNLNEPJPRLU4OE · pith_short_8: BVYNLNEP

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/BVYNLNEPJPRLU4OEO776KA2NIK \
  | 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: 0d70d5b48f4be2ba71c477ffe5034d42b0f2e9a90e3cf9e87a8b70abd840bcb7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c9d3c0927ffa5e62a016454e2065d6c8ded586e361c3c5149c6d7faa4455a356",
    "cross_cats_sorted": [
      "math.GT"
    ],
    "license": "",
    "primary_cat": "math.AT",
    "submitted_at": "2005-03-25T15:47:00Z",
    "title_canon_sha256": "47d741d68a227403e1217bfd7af3b3080a3a8ff164931be9d530532ecd9b7d6f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/0503605",
    "kind": "arxiv",
    "version": 1
  }
}