Pith Number

pith:AABAG2ZU

pith:2019:AABAG2ZUJPVVEGOAXCVFWYKMQT

not attested not anchored not stored refs pending

Vanishing viscosity limit to vortex sheet for the isentropic compressible circularly symmetric 2D flow

Helong Lu

arxiv:1906.10599 v1 · 2019-06-25 · math.AP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{AABAG2ZUJPVVEGOAXCVFWYKMQT}

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	2026-05-17T23:42:15.862551Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0002036b344beb5219c0b8aa5b614c84c254a90ae23421d00e63a8688990e1f3

Aliases

arxiv: 1906.10599 · arxiv_version: 1906.10599v1 · doi: 10.48550/arxiv.1906.10599 · pith_short_12: AABAG2ZUJPVV · pith_short_16: AABAG2ZUJPVVEGOA · pith_short_8: AABAG2ZU

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/AABAG2ZUJPVVEGOAXCVFWYKMQT \
  | 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: 0002036b344beb5219c0b8aa5b614c84c254a90ae23421d00e63a8688990e1f3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1323f56acbf479a7dd6228d11a49ff51f359f3d43115e01863cf1a8d11b7987c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2019-06-25T15:19:05Z",
    "title_canon_sha256": "2912b72f162ad6a08cfd5522811e7abffb7722bbe596ed9c8d3dd4f3772387e0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1906.10599",
    "kind": "arxiv",
    "version": 1
  }
}