Pith Number

pith:2IARD4G7

pith:2007:2IARD4G7VKQ4OST7U4HPAQX3L6

not attested not anchored not stored refs pending

Discovery of VHE Gamma Radiation from IC443 with the MAGIC Telescope

et al.), (J. Albert, MAGIC collaboration

arxiv:0705.3119 v2 · 2007-05-22 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2IARD4G7VKQ4OST7U4HPAQX3L6}

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	2026-05-18T03:48:12.413275Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d20111f0dfaaa1c74a7fa70ef042fb5fa4f0a66f6cf814c1c04128032b2f5b51

Aliases

arxiv: 0705.3119 · arxiv_version: 0705.3119v2 · doi: 10.48550/arxiv.0705.3119 · pith_short_12: 2IARD4G7VKQ4 · pith_short_16: 2IARD4G7VKQ4OST7 · pith_short_8: 2IARD4G7

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/2IARD4G7VKQ4OST7U4HPAQX3L6 \
  | 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: d20111f0dfaaa1c74a7fa70ef042fb5fa4f0a66f6cf814c1c04128032b2f5b51

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c732ab1947ab7ad813588ab475e47db162a0423f9df8ced1fa2ccc1cbcde3950",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2007-05-22T09:16:49Z",
    "title_canon_sha256": "c6ba4f151f7408dac09653ebe697254c5e9f7b031f0a52e6ca04631472af903c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0705.3119",
    "kind": "arxiv",
    "version": 2
  }
}