Pith Number

pith:SSUYSBKM

pith:2019:SSUYSBKMJFO5SDYXUX4SWWESJ2

not attested not anchored not stored refs pending

Harmonic maps with free boundary from degenerating bordered Riemann surfaces

Chong Song, Lei Liu, Miaomiao Zhu

arxiv:1904.01539 v1 · 2019-04-02 · 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{SSUYSBKMJFO5SDYXUX4SWWESJ2}

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	2026-05-17T23:49:34.407331Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

94a989054c495dd90f17a5f92b58924ea03029e73bc9519601d42a7aa5f83708

Aliases

arxiv: 1904.01539 · arxiv_version: 1904.01539v1 · doi: 10.48550/arxiv.1904.01539 · pith_short_12: SSUYSBKMJFO5 · pith_short_16: SSUYSBKMJFO5SDYX · pith_short_8: SSUYSBKM

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/SSUYSBKMJFO5SDYXUX4SWWESJ2 \
  | 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: 94a989054c495dd90f17a5f92b58924ea03029e73bc9519601d42a7aa5f83708

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1ff007ad632cc0fa876e05dc7852b500eb0cb1fd5241a3e3067988c77bfe1ab6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2019-04-02T16:54:08Z",
    "title_canon_sha256": "bf57db94ab0413acf6c438db5787ed4677be2d00732574dba5aad3e7017da451"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.01539",
    "kind": "arxiv",
    "version": 1
  }
}