Pith Number

pith:QASX22HI

pith:2013:QASX22HIXEIRBWDQZICSOA2PYX

not attested not anchored not stored refs pending

ResourceSync: Leveraging Sitemaps for Resource Synchronization

Bernhard Haslhofer, Carl Lagoze, Herbert Van de Sompel, Martin Klein, Michael L. Nelson, Robert Sanderson, Simeon Warner

arxiv:1305.1476 v1 · 2013-05-07 · cs.DL

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QASX22HIXEIRBWDQZICSOA2PYX}

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	2026-05-18T03:26:21.680885Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

80257d68e8b91110d870ca0527034fc5cbdc0f4c8070fef940c4e986be14fb32

Aliases

arxiv: 1305.1476 · arxiv_version: 1305.1476v1 · doi: 10.48550/arxiv.1305.1476 · pith_short_12: QASX22HIXEIR · pith_short_16: QASX22HIXEIRBWDQ · pith_short_8: QASX22HI

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/QASX22HIXEIRBWDQZICSOA2PYX \
  | 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: 80257d68e8b91110d870ca0527034fc5cbdc0f4c8070fef940c4e986be14fb32

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "096486ca16fa3caeb476b3d385214366214a78ec83950d7f0e8cf4e81a5a813a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DL",
    "submitted_at": "2013-05-07T11:42:52Z",
    "title_canon_sha256": "921a4a09e339ca524568c84c8014f8507e353e2ef61b21b75fde3adcf34948ff"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1305.1476",
    "kind": "arxiv",
    "version": 1
  }
}