Pith Number

pith:GIL5TG4S

pith:2009:GIL5TG4SXR6V7CKBLRGJTZ2D63

not attested not anchored not stored refs pending

Absorption of 10 Gev--1 Tev Gamma Rays from 3C 279

H. T. Liu, J. M. Bai, L. Ma

arxiv:0905.1447 v1 · 2009-05-10 · astro-ph.CO

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	2026-05-18T03:02:57.662495Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3217d99b92bc7d5f89415c4c99e743f6c9a9d77f6e58a4f0fc174b9fdb2eebc9

Aliases

arxiv: 0905.1447 · arxiv_version: 0905.1447v1 · doi: 10.48550/arxiv.0905.1447 · pith_short_12: GIL5TG4SXR6V · pith_short_16: GIL5TG4SXR6V7CKB · pith_short_8: GIL5TG4S

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/GIL5TG4SXR6V7CKBLRGJTZ2D63 \
  | 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: 3217d99b92bc7d5f89415c4c99e743f6c9a9d77f6e58a4f0fc174b9fdb2eebc9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d543930eba842e6757948fe40326146e3ff6f63f70c8767ad4aaddb5d1d5d993",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-05-10T04:17:19Z",
    "title_canon_sha256": "b88e82102b54d0253685efcd9caad39f7c886d10f5030a421d9539637d5f6c54"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0905.1447",
    "kind": "arxiv",
    "version": 1
  }
}