Pith Number

pith:TOR4NQPK

pith:2020:TOR4NQPKHDKVCUWR4RPKAW7XMN

not attested not anchored not stored refs pending

Predictability limit of partially observed systems

Andr\'es Abeliuk, Emilio Ferrara, Kristina Lerman, Zhishen Huang

arxiv:2001.06547 v1 · 2020-01-17 · cs.CY · cs.IT · math.IT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{TOR4NQPKHDKVCUWR4RPKAW7XMN}

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	2026-07-05T00:34:22.087126Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9ba3c6c1ea38d55152d1e45ea05bf7635eb5e306efc33fc09268c6a17f9cce93

Aliases

arxiv: 2001.06547 · arxiv_version: 2001.06547v1 · doi: 10.48550/arxiv.2001.06547 · pith_short_12: TOR4NQPKHDKV · pith_short_16: TOR4NQPKHDKVCUWR · pith_short_8: TOR4NQPK

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/TOR4NQPKHDKVCUWR4RPKAW7XMN \
  | 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: 9ba3c6c1ea38d55152d1e45ea05bf7635eb5e306efc33fc09268c6a17f9cce93

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0cf38f81a2e0fdbd3b5a7e224e8f3353400f1e5f8d8a55860785072bc2e442b2",
    "cross_cats_sorted": [
      "cs.IT",
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CY",
    "submitted_at": "2020-01-17T22:06:53Z",
    "title_canon_sha256": "d3e134a00dd8680499b301f5f4892cc5366613a019a9e7cf35b7c25e1e677830"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2001.06547",
    "kind": "arxiv",
    "version": 1
  }
}