Pith Number

pith:77RYIOTC

pith:2010:77RYIOTC5MYUVJFVVM6U2S43PA

not attested not anchored not stored refs pending

Back To The Future: On Predicting User Uptime

Matteo Dell'Amico, Pietro Michiardi, Yves Roudier

arxiv:1010.0626 v1 · 2010-10-04 · cs.NI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{77RYIOTC5MYUVJFVVM6U2S43PA}

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	2026-05-18T02:23:47.222308Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ffe3843a62eb314aa4b5ab3d4d4b9b7827a002ba94f5a74aa81aba51a966e32c

Aliases

arxiv: 1010.0626 · arxiv_version: 1010.0626v1 · doi: 10.48550/arxiv.1010.0626 · pith_short_12: 77RYIOTC5MYU · pith_short_16: 77RYIOTC5MYUVJFV · pith_short_8: 77RYIOTC

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/77RYIOTC5MYUVJFVVM6U2S43PA \
  | 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: ffe3843a62eb314aa4b5ab3d4d4b9b7827a002ba94f5a74aa81aba51a966e32c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ba760f75820cf4b26f887251e670ac576b4fd5a31c36539b6cf46e57f23526bd",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.NI",
    "submitted_at": "2010-10-04T15:34:25Z",
    "title_canon_sha256": "a150f5c165e95482ba41d91fb8393b63d244a58fe9afd63053ffd4aaa82df19f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1010.0626",
    "kind": "arxiv",
    "version": 1
  }
}