Pith Number

pith:PIJAXF2X

pith:2017:PIJAXF2X7U63YWCDF4C3FJXHMW

not attested not anchored not stored refs pending

Affine Self-similar solutions of the affine curve shortening flow I: The degenerate case

Chengjie Yu, Feifei Zhao

arxiv:1711.08872 v1 · 2017-11-24 · 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{PIJAXF2X7U63YWCDF4C3FJXHMW}

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	2026-05-18T00:29:41.886877Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7a120b9757fd3dbc58432f05b2a6e765bafe08dd8fea48989979a83580c5f102

Aliases

arxiv: 1711.08872 · arxiv_version: 1711.08872v1 · doi: 10.48550/arxiv.1711.08872 · pith_short_12: PIJAXF2X7U63 · pith_short_16: PIJAXF2X7U63YWCD · pith_short_8: PIJAXF2X

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/PIJAXF2X7U63YWCDF4C3FJXHMW \
  | 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: 7a120b9757fd3dbc58432f05b2a6e765bafe08dd8fea48989979a83580c5f102

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "88b27e904499bbb72c81d87247a81272fcc9a5e6ed93e44aa0685c3b418ccb23",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2017-11-24T05:46:50Z",
    "title_canon_sha256": "b3cd4bdaa722daba1cfff9170563464e3e2df25dca61b288e34392ab5165d405"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1711.08872",
    "kind": "arxiv",
    "version": 1
  }
}