Pith Number

pith:2URDZO2O

pith:2007:2URDZO2OQHPUNSM5YVEZO22ZAH

not attested not anchored not stored refs pending

Observation of an unexpected hardening in the spectrum of GRB 021206

C. Wigger, E. Bellm, O. Wigger, W. Hajdas

arxiv:0710.2858 v1 · 2007-10-15 · 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{2URDZO2OQHPUNSM5YVEZO22ZAH}

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	2026-07-04T15:10:59.923668Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d5223cbb4e81df46c99dc549976b5901d9a199d57138933e523d97842eaf9471

Aliases

arxiv: 0710.2858 · arxiv_version: 0710.2858v1 · doi: 10.48550/arxiv.0710.2858 · pith_short_12: 2URDZO2OQHPU · pith_short_16: 2URDZO2OQHPUNSM5 · pith_short_8: 2URDZO2O

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/2URDZO2OQHPUNSM5YVEZO22ZAH \
  | 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: d5223cbb4e81df46c99dc549976b5901d9a199d57138933e523d97842eaf9471

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0b10995cd72f0c5820bba21dda60a599789f84c88ef0ed1736eb945e5b45041e",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2007-10-15T16:25:09Z",
    "title_canon_sha256": "6e33414af1f9efc2c5d5e7da0273951f43447cd18f145bc95371c47b5f899c37"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0710.2858",
    "kind": "arxiv",
    "version": 1
  }
}