Pith Number

pith:4HJEKU6V

pith:2013:4HJEKU6V5LL4ADIZLSIMDKR2HL

not attested not anchored not stored refs pending

A Chandra/HETGS Census of X-ray Variability From Sgr A* During 2012

C. Gammie, D. Haggard, D. Porquet, F. K. Baganoff, J. A. Tomsick, J. Dexter, J. M. Miller, J. Neilsen, M. A. Nowak, N. Degenaar, N. Grosso, P. C. Fragile, Q. D. Wang, R. Wijnands, S. Markoff, S. Nayakshin

arxiv:1307.5843 v1 · 2013-07-22 · astro-ph.HE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4HJEKU6V5LL4ADIZLSIMDKR2HL}

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	2026-05-18T01:48:41.560679Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e1d24553d5ead7c00d195c90c1aa3a3ad4c334b93d88ff91d60bb589fd67801c

Aliases

arxiv: 1307.5843 · arxiv_version: 1307.5843v1 · doi: 10.48550/arxiv.1307.5843 · pith_short_12: 4HJEKU6V5LL4 · pith_short_16: 4HJEKU6V5LL4ADIZ · pith_short_8: 4HJEKU6V

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/4HJEKU6V5LL4ADIZLSIMDKR2HL \
  | 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: e1d24553d5ead7c00d195c90c1aa3a3ad4c334b93d88ff91d60bb589fd67801c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c52c4645993866c4756425f16d6b5de6881115abef94ca7e7ccea379fb5533c4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2013-07-22T20:00:00Z",
    "title_canon_sha256": "97878c3afb5a7ae7b01f5dc28d4a72781ecc7471f5101cd88a28ff116e6d904f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1307.5843",
    "kind": "arxiv",
    "version": 1
  }
}