Pinguini Tattici Nucleari (; English: "Tactical Nuclear Penguins"), sometimes shortened to PTN, is an Italian indie rock/pop band formed in 2010 in Bergamo. They debuted in 2012 with the EP Cartoni a
{"copyright_id":"0x44fbf3dabb2c84931fa1ffbc3923c9db1b93fd8633349cd0a448863e323d00ee","name":"Pinguini Tattici Nucleari","registered_at":"2026-06-12T08:37:33Z","symbol":"NIM0244359","token_address":"0xd25323dc98aefee6c51af27800f657db4ef6f9a5","type":"artist","uuid":"bd0ea494-46fa-4d5c-bd7c-6e1ad1f53ee0"}
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44fbf3dabb2c84931fa1ffbc3923c9db1b93fd8633349cd0a448863e323d00ee. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bd0ea494-46fa-4d5c-bd7c-6e1ad1f53ee0.json and https://artists.proofprofile.net/proofs/artist/bd0ea494-46fa-4d5c-bd7c-6e1ad1f53ee0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x688fecd0b751df551190b446c6d8bdbc2ae2a3c0970e91ac705a9244d143c1b1. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMPKX1455505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1db951eca8c34c853a267af9637d893d363683fe6fa6ccc3080501e5da3f59ea. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITXEH1700001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2091689c647108744594a1468eb5a9c133abd145a1d16f85c087176c2a11c6fe. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/IT5081900015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8de82c3b5d7a153b6c00e81d9d0931a0eba547e454ff0034c93e4917ede2e13. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITB001900097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3962c7561ff8c768fb4f8639d28c109b1a4d5f4962cf00e1f77dafdfecd150c. Chain 2 (Bitcoin): anchored in block 957751 (2026-07-12T20:41:42Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITB001900117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5be802e49bcf749b30fd140c46728d79d622ad7335067b209f20917c829ef389. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/IT5082000195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4171ac906e9678e6a9b31c35353a8d399045cdf231d5615d5160d94e29b5ad88. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITB002300914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x199312af8f96ec8cfc49a1602775159fd5d7dd19be5ad9163695a61cc2f2976c. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITB002000021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4171ac906e9678e6a9b31c35353a8d399045cdf231d5615d5160d94e29b5ad88. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITB002300914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x914bf51c3d97eabe4df5ee9db2f626f0f34a9e913aa97f861c616de3fa5e5bc9. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITIWE2390122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x199312af8f96ec8cfc49a1602775159fd5d7dd19be5ad9163695a61cc2f2976c. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITB002000021.
Festival di Sanremo - le canzoni più belle
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x199312af8f96ec8cfc49a1602775159fd5d7dd19be5ad9163695a61cc2f2976c. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITB002000021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x199312af8f96ec8cfc49a1602775159fd5d7dd19be5ad9163695a61cc2f2976c. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITB002000021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91ff87b662070190299fb59e8766784cd912ba12e575627d9ec1a7a5f7815dd8. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITB001900067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4171ac906e9678e6a9b31c35353a8d399045cdf231d5615d5160d94e29b5ad88. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITB002300914.