Pith Number

pith:ZQGAKCHI

pith:2016:ZQGAKCHI74UHIXRXYCBR76G62S

not attested not anchored not stored refs pending

Characterization of embedded free boundary surfaces in the ball

Harold Rosenberg, Jos\'e M. Espinar

arxiv:1609.07810 v2 · 2016-09-25 · math.DG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZQGAKCHI74UHIXRXYCBR76G62S}

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	2026-05-18T01:03:26.000495Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cc0c0508e8ff28745e37c0831ff8ded4b1d88222b70bc95e14035f99c8fcbb3c

Aliases

arxiv: 1609.07810 · arxiv_version: 1609.07810v2 · doi: 10.48550/arxiv.1609.07810 · pith_short_12: ZQGAKCHI74UH · pith_short_16: ZQGAKCHI74UHIXRX · pith_short_8: ZQGAKCHI

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/ZQGAKCHI74UHIXRXYCBR76G62S \
  | 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: cc0c0508e8ff28745e37c0831ff8ded4b1d88222b70bc95e14035f99c8fcbb3c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "35c0f2d5d042060aa38baa1244efc07c04ac92e74d1d29241d017865c22a231e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2016-09-25T21:40:07Z",
    "title_canon_sha256": "06aa24ef900aa34cdd7d5e12007e72ff28d46e8b34d22bcc5d51da8cb0425445"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1609.07810",
    "kind": "arxiv",
    "version": 2
  }
}