Pith Number

pith:GIFIG2KX

pith:2011:GIFIG2KX66FW2Z4Q35V5OXU3CQ

not attested not anchored not stored refs pending

Discovery of gamma-ray emission from the Broad Line Radio Galaxy Pictor A

Anthony M. Brown, Jenni Adams

arxiv:1201.0034 v1 · 2011-12-29 · astro-ph.HE

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

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	2026-05-18T01:58:59.561243Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

320a836957f78b6d6790df6bd75e9b141d79811e2dd09ec90b7d10e56faace2f

Aliases

arxiv: 1201.0034 · arxiv_version: 1201.0034v1 · doi: 10.48550/arxiv.1201.0034 · pith_short_12: GIFIG2KX66FW · pith_short_16: GIFIG2KX66FW2Z4Q · pith_short_8: GIFIG2KX

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/GIFIG2KX66FW2Z4Q35V5OXU3CQ \
  | 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: 320a836957f78b6d6790df6bd75e9b141d79811e2dd09ec90b7d10e56faace2f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d0734df4b17192e5c97e4bae0e6c9b4ad37c0ee7659cbb5b125598ed87a4f2b1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2011-12-29T23:10:15Z",
    "title_canon_sha256": "3555601e3027d08b2f8c96d95411b9682f74aeaab569766e95e10d85b0a1a522"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1201.0034",
    "kind": "arxiv",
    "version": 1
  }
}