Istentales is a Sardinian ethnic pop-rock band. The group was formed in Sardinia in 1995 in Nuoro in Sardinia by Gigi Sanna. History The name of the band is taken from one of the most important const
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07448ee3166fad3dbd94e2f218e3fe0a6418bee770cdff037d794d238c5c1038. Chain 2 (Bitcoin): anchored in block 953660 (2026-06-14T17:20:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/51a1da5f-f426-45d7-bd83-e3b0edf356f5.json and https://artists.proofprofile.net/proofs/artist/51a1da5f-f426-45d7-bd83-e3b0edf356f5.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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbe97543e0656c61fd28ff02aa2c9454133eea1c71d3cfac3ee6e291a1fe2d7a. 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/TCAGC2207653.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeeab0eed1830f1b0da39cb992479fee5791940d36050071db6b5e602fae48f83. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/TCAGC2207708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b910d57f967fc8022cc60579f5d14c13bb8657faa1b7f33dd0a0ca00d1dcfb5. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/TCAGC2207710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x686c20e88a1b8d0a8b3f65f76419a9db5570369b24bce9683302146027a57936. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/TCAGB2295227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacd8a6e0046b98e8790d95f2b40aacfb875647634e7796ea42b0a7aa3e1ea1df. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/TCAGC2207714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeef6a584f126b0dd5b78190789f6803f10fa5ead1febb7a68a46bbf4f0ce66c2. 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/TCAGC2207716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85c4362872d0b6811e0607f7c990e564a754811010dc21e88be68ceabc65a0c8. 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/TCAGC2207718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6fe9f4739d6627ba154f080874f6c4a7fbab6942e6784f01d61a01df870d17b. 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/TCAGC2207721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5db7bbfb580b5a93d927de066e9f02e8536f0c7d0515d89dde0a591b338af13b. 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/TCAGC2207725.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7144215ed5b4d083fd52f780260f2236bdd8172ae0a2de77356e8f68b2a6d215. 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/TCAGC2207736.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bfae3a570f1a84b9a3cc66ee5d36f1f9967eabe6988782c25f36854979c4636. Chain 2 (Bitcoin): anchored in block 958538 (2026-07-18T10:30:13Z), 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/TCAHD2301507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x815c3bfc94213cd6d647e05dc1862fd6008ebbdc27b0bf54e48ca13551e2dff5. Chain 2 (Bitcoin): anchored in block 958104 (2026-07-15T05:34:05Z), 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/TCAHD2301509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd514e4751a1805c2c2a6f62d572eaa64592687a7c545985db90e22a8cdf61358. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/TCAHD2301515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc62872b36d7b51ef62b40873dd857fe6947faa02d8aaf623e57f739f00ae000. Chain 2 (Bitcoin): anchored in block 958800 (2026-07-20T00:52:19Z), 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/TCAHD2301516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc9cc6fb3a79510bf8e2a2540fb61e5dd333daeb8f42670267eb6ab256473b52. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/TCAHD2301518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35b4511f1594922a31037ec487408fb5184a28126d643d3b48ea392b90491148. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/TCAHD2301522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc74a70f7c6dee23999491c565d6254879efda89cf27f802366aff741215ace5. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/TCAHD2301524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd753c8c2d01b9e004135b62621ef8a913b7c9749f7ace688f507dc9a9c8c8d8b. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T21:05:52Z), 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/TCAHD2301528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0a075c016e4b7193bc423e07c7a08962126f7fe3c7c9b8ac90bc4d0776c8b9f. Chain 2 (Bitcoin): anchored in block 958639 (2026-07-19T01:18:30Z), 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/TCAHD2301531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddebd520c5af2f180ddf52d111248bc237b04d16ab442d1095d9f85f631f69e9. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/TCAHD2301535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x260aa61aed848ab209a29af9596e81b27231d402e63a1cda168fc54e8900597f. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/TCAHX2498135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1af766f566cc5b0e735463c7c4ab51c25abd3259108920f17d4c690048eb6150. Chain 2 (Bitcoin): anchored in block 958812 (2026-07-20T03:24:09Z), 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/TCAJL2578508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87fa7c15b80f2b5d81b2ffe7548a159efc7bba75334ab30eaf91e8bcfd447476. Chain 2 (Bitcoin): anchored in block 958639 (2026-07-19T01:18:30Z), 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/TCAJL2578523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08647d0eb3038611a083e1e9f7e39f2dd57bf64bf019d4462d3336dbbc6c1053. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), 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/TCAJL2578528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c0f536ec1fcfebce7340c0112979b2d37245dda381ffcd14c73f84b2fc0792b. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/TCAJL2578543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x300b0700beff1b22481faff3ba6806265dd95eba5b42afea82ff43fa5c021f96. Chain 2 (Bitcoin): anchored in block 959096 (2026-07-22T03:48:36Z), 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/TCAJL2578557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a6a4e7d0366583c7de4c64d5fab652cbc9238185dab9733e32532f6d540f8eb. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/TCAJL2578596.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaec72900b75bd450c60f571a4e84a6391f5d0ab3496cd02079ff7f5f5cb7170d. Chain 2 (Bitcoin): anchored in block 958816 (2026-07-20T03:51:05Z), 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/TCAJL2578607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5b3ffdb722691ec9fc4eff06f03aa73287aee4d9d1f22aeeab1fecca64004bf. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/TCAJL2578615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x946d76a9672c67c477c223ed01283f32b275e42d0a52aae19dca4bc12eea236a. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/TCAJL2578621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdba0ea356495ff3821f7a973971c5ba74cd48893c1a76ace0470c5ab86ff6af6. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T17:53:56Z), 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/TCAJL2578624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc682b2b4e03e376844a761757df976ca9a425947224a61566ca45bb630dc37c6. 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/ITZ040400114.