Pith Number

pith:726PC3ZD

pith:2013:726PC3ZDZ3HRNO44AIY2MEYCPU

not attested not anchored not stored refs pending

GRB Afterglow Blast Wave Encountering Sudden Circumburst Density Change Produces No Flares

Andrew MacFadyen, Hendrik van Eerten, Ilana Gat

arxiv:1308.4885 v1 · 2013-08-22 · 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	2026-05-18T03:15:19.543359Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

febcf16f23cecf16bb9c0231a613027d057ed7226513b6b62655b0a5d8c8d400

Aliases

arxiv: 1308.4885 · arxiv_version: 1308.4885v1 · doi: 10.48550/arxiv.1308.4885 · pith_short_12: 726PC3ZDZ3HR · pith_short_16: 726PC3ZDZ3HRNO44 · pith_short_8: 726PC3ZD

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/726PC3ZDZ3HRNO44AIY2MEYCPU \
  | 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: febcf16f23cecf16bb9c0231a613027d057ed7226513b6b62655b0a5d8c8d400

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6b56360de2e09067bf3a28ed13c50b13f17293a6ffbe98f7f98b62d4500acee4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2013-08-22T14:50:48Z",
    "title_canon_sha256": "067eb18860c2b6fe6d16375a1267bcebe020688339ddecfbf28f0c279c1a23ef"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1308.4885",
    "kind": "arxiv",
    "version": 1
  }
}