Pith Number

pith:IYPDNTBC

pith:2013:IYPDNTBCAVKMDJK3KNTNOTWKNF

not attested not anchored not stored refs pending

On the finiteness of uniform sinks

Dawei Yang, Yong Zhang

arxiv:1303.2319 v1 · 2013-03-10 · math.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{IYPDNTBCAVKMDJK3KNTNOTWKNF}

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	2026-05-18T03:31:19.354819Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

461e36cc220554c1a55b5366d74eca697f07e886992a8fd49c1343bf30840de4

Aliases

arxiv: 1303.2319 · arxiv_version: 1303.2319v1 · doi: 10.48550/arxiv.1303.2319 · pith_short_12: IYPDNTBCAVKM · pith_short_16: IYPDNTBCAVKMDJK3 · pith_short_8: IYPDNTBC

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/IYPDNTBCAVKMDJK3KNTNOTWKNF \
  | 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: 461e36cc220554c1a55b5366d74eca697f07e886992a8fd49c1343bf30840de4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2f93b6792b0e1c251ea3b3a197393bcfefb3626b60aa3593168117b5dece7e51",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DS",
    "submitted_at": "2013-03-10T13:11:18Z",
    "title_canon_sha256": "aac5bcd644fe009bbc4171c93edf7469c584c91789d0ce650fe57bb533adab22"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1303.2319",
    "kind": "arxiv",
    "version": 1
  }
}