Ezetaerre is a Spanish hip hop group formed in A Coruña in 2015, composed of Miguel García (Garchu), Juan Pirola (Pirola) and Pedro Iglesias (Petrowski). Career The group was formed in June 2015, w
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 0xb567bfa35885d075883bd5ae71510df9b9b9cadb2d953d9a5085b5d9f2042142. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2b6f5b37-e42a-4e1b-971e-05b1ac0e03cf.json and https://artists.proofprofile.net/proofs/artist/2b6f5b37-e42a-4e1b-971e-05b1ac0e03cf.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 0xe1315c7aedd280829dbc45dd120863a4b02dee2f6975f8480ba87f779f5181d0. 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/ES7311800083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa01c41d4ec5fe0734174e7aeeb271d669a445c72487c7ca1a8ce618b6a6162c1. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/ES7311800084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ab5b1b6303811135015f99dd03575017e11b1ac41525f269e245a1da545241e. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/ES7311800089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d262ee1611ae8e94beac735593e6ffdf48d750d590d9ad0e2db10c1011864c1. 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/ES7311800090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fa9a3343b4bbdc3713fe7e766fe6df85f12db0ec57f70f367150669efc926cb. 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/ES7311800098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5aa3b785499f4c747596685db65fd22a152cf6b7aa054ac16b543a8b9c26c82a. 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/ES7311800096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb607887a07ec2a9bd1ce41d91a091a9a82bd4cfcc9766f6e7ca56cffad44f3b. 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/ES7311800100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7a46fad81d6a5ab2457abaf02ecafcdcd0a862ae733102c7a0efb0028e3bc2c. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/ES7311800097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d6f1805a8b9c4cfb4297d5a916578b731d451456f296ca49f795bccc0890eb7. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/ES7311800101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fee75765ae2d7f3ec6624d1f4b85d4f786ec0f9da6f1e3dfb1733f090b81e8d. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/ES7311800103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6df1e7da8a10fc16c3576763c9bc5cdac3ad1c55b7c01dc5e40969f5282569b. 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/ES7311800104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc38b71498c303dce713d5aaed0bd06783603daa44b8e12b45da0a0f1d789cf1b. 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/ES7311800105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0a77707c8643d32952fbfe7689d052b258c3d328aef6ec0eea15216f622987f. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T17:49:57Z), 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/ES7311800099.
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 0x5224a1beafd99659538d991f01880c047d4edf38fb8e2e374572b6d1d2de90b6. Chain 2 (Bitcoin): anchored in block 960185 (2026-07-30T01:32:48Z), 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/ES7311800102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52b20fcb6ca15035a4783de1cafd9b68beec7d124410e778611474c82a5f258b. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/ES7311800106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe68a989cd608aa5ecb051ce88037ee8852fd19420e32597ac6ac2e696f6663c. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/ES7311900120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f3fca080f05383651714e9fab587acbfc59f133db8dac415dd0c2fd561c8f68. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QMDA62186821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f3fca080f05383651714e9fab587acbfc59f133db8dac415dd0c2fd561c8f68. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QMDA62186821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa097474e79974950093c269eb233f8a016e05b68442e69182fb7c9cde404ebca. 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/GBLFP2018251.
Pobo de Artistas - En Directo XX Aniversario
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb679d9624aa90afd672b449a065e36fc694b811dbf751467eb0a5842c0c7ee64. Chain 2 (Bitcoin): anchored in block 960181 (2026-07-30T00:53:20Z), 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/QM4TW2466844.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe96d2a9d7833b1d1aeea6d4cb95873e39e37360fcb9a4460f26d8b82fa64742. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/SEYOK1903722.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x032460031bcd2a33101a4a86aa089074995d3e3c734169384dd1686ca322437e. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/ESA092410357.