Pith Number

pith:XAIN5X7O

pith:2021:XAIN5X7OKTCLUTRGSQWPW5NEDF

not attested not anchored not stored refs pending

Tracking Without Re-recognition in Humans and Machines

Drew Linsley, Ennio Mingolla, Girik Malik, Junkyung Kim, Lakshmi N Govindarajan, Thomas Serre

arxiv:2105.13351 v2 · 2021-05-27 · cs.CV · cs.AI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XAIN5X7OKTCLUTRGSQWPW5NEDF}

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	2026-07-05T02:45:50.380867Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b810dedfee54c4ba4e26942cfb75a4195cb571b713b7085502348a2f9308de1f

Aliases

arxiv: 2105.13351 · arxiv_version: 2105.13351v2 · doi: 10.48550/arxiv.2105.13351 · pith_short_12: XAIN5X7OKTCL · pith_short_16: XAIN5X7OKTCLUTRG · pith_short_8: XAIN5X7O

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/XAIN5X7OKTCLUTRGSQWPW5NEDF \
  | 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: b810dedfee54c4ba4e26942cfb75a4195cb571b713b7085502348a2f9308de1f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fc362dd2e4895f75a624cf0cf16ca207f55f856a08c612ddca22884c34ab30fd",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2021-05-27T17:56:37Z",
    "title_canon_sha256": "b82ef2d02b444181fa3c8555bb7a5480bf096fbef99a9d7c50abfbddddafbcee"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2105.13351",
    "kind": "arxiv",
    "version": 2
  }
}