Pith Number

pith:HHRTUC24

pith:2013:HHRTUC24MQZHVTLV6EBD4QNID7

not attested not anchored not stored refs pending

An Efficient Authorship Protection Scheme for Shared Multimedia Content

Georgios Pitsilis, Mohamed El-Hadedy, Svein J. Knapskog

arxiv:1309.7640 v1 · 2013-09-29 · cs.MM · 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{HHRTUC24MQZHVTLV6EBD4QNID7}

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	2026-05-18T03:11:25.376489Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

39e33a0b5c64327acd75f1023e41a81fd22819d28f4e2df547b8e346ddac8e09

Aliases

arxiv: 1309.7640 · arxiv_version: 1309.7640v1 · doi: 10.48550/arxiv.1309.7640 · pith_short_12: HHRTUC24MQZH · pith_short_16: HHRTUC24MQZHVTLV · pith_short_8: HHRTUC24

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/HHRTUC24MQZHVTLV6EBD4QNID7 \
  | 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: 39e33a0b5c64327acd75f1023e41a81fd22819d28f4e2df547b8e346ddac8e09

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0547d1e103c09beb51b09a666c8a01f3e276105fa2501534b0c11f7919ddaf9f",
    "cross_cats_sorted": [
      "cs.DL"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.MM",
    "submitted_at": "2013-09-29T19:17:18Z",
    "title_canon_sha256": "02cfa8e301f05912be257ee8c5e5197a33bb9cf451166f8e3343ec2fca71eb1f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1309.7640",
    "kind": "arxiv",
    "version": 1
  }
}