A tuna (: tunas or tuna) is a saltwater fish that belongs to the tribe Thunnini, a subgrouping of the Scombridae (mackerel) family. The Thunnini comprise 15 species across five genera, the sizes of wh
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 0x67c346fd9ed3b8d09402408197f084b3090840b53735eaee45d547efff56353b. 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/78a49ec5-b866-487c-ae37-3aaf8769bc59.json and https://artists.proofprofile.net/proofs/artist/78a49ec5-b866-487c-ae37-3aaf8769bc59.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Continuar E Seguir O Sonho - Quentro & Tuna Remix
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 0x5338cf5167653ab9b577dc06c09b2f16770f44b850178cb7e047161dfd918baf. 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/DEY472474701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bb45ff7fc87515c38b7ab90d91a6df7eb2e23d28bc2cc0c374c234ca7073ed3. 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/TRCMG2400029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8751333a08f175bc7dd742e218c637d8978531b15f2f1d557140b9605d7e91e. 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/TRCMG2400025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a9fc1b7ce75b4fbdeebab6f95a7afa47b37896592043d0b8c4c9cc3d951c384. 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/TRCMG2400004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4fa4c7200c482c8bb21413f5b6fb93a25769d5807c80bf28a5fcb3605d4d43a. 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/TRCMG2400007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a9fc1b7ce75b4fbdeebab6f95a7afa47b37896592043d0b8c4c9cc3d951c384. 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/TRCMG2400004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6230350f2ecbf332bc18c6e85a55b448cca966e690f6afe079bd0804c5bc51a6. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/TRCMG2400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73e494096d9870f595ac7d7804641252362e69c1c99cb01fce30f806bdd7fc7e. 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/QMFMF2227609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x354401f3c1e900f46b05939276185ebb5432643a0da3aaaaf9a9de68a56c590b. 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/GBKQU2233082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0c65cd94a9d6ad8ae782cf6e9dfb2e66080df1d2ea88cbc5003028cee9c7fc6. 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/GBKQU2137432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf46d321d0dd5ce7ef0502d56e384914ed6fd4a0186741c1fa92d96c84fb2d312. 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/GBKQU2128018.
SAD GENERATION, HAPPY PICTURES (AATM) - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79abe82e292c048989dd5cc6de75a693423201e26a016f5c82a8570c3effbc2f. 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/DED622400327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc96002d6bec9683e0547a5b1f19a05f29044a0f15743465afc2aafcb5cf2dc2a. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/DED622400328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfc526fd55684c2724606aca4ab233f54445722c156b9abb1728a1b4a0cfaff1. 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/DED622400165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5f21aec542c302a06a6ce6b9702fb50e91eccb7a8e11bebeaa01bdbbda4b8ac. 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/DED622400329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4cd747a020c5cd6a0daf8edbf19cf8fd8bc2db4cd2483d585ecb252b0c82c90. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/DED622400330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8edbf9d966a95ee981c0cf7b88266a8d1db79b3329890a08e6280213e20cfa29. 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/DED622400331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x344c9853c396d1dfca21fe9b71767ba8c1e51dde530be3f18e4d54dbc9e394a6. 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/DED622400181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4a1bf5426dad2f86e10d348b4eb5755236aaed4f2fcedd568f30225b19f09de. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/DED622400332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x168c9ee7de357288053b04b683d3b8dd6fc1c99cc0bfed74c848e8627a806500. 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/DED622400182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa752c0b78138f3c1a2727970801eaff5ab4d7f6a36192d448fbae87f54ff116b. 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/DED622400333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7de2e8ccad8f2adaa903115e938568ce5a020256aeb26f304cf562f21273e3b7. 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/DED622400169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd263555e28bce0f91d96f2af7e334136c70fe4e1e11f72004b5deec315def6e5. 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/DED622400334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadea4d49cfd2af6b881f61f8350f520404c7e76c1b87440743911331e482857f. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/DED622400335.
SAD GENERATION, HAPPY PICTURES (feat. Flyana Boss)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6f62a6d5dd0f92a07f0e9627ad3167b2016fc7e776227b87bab8f9224af016b. 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/DED622400185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb26ad0d36bc6e7898fe34bdbc1397a50b1c9e517af0e29d6de6722736689d970. 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/DED622400336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a743403974521347a37d7e91eaee4c3ef59460933f8b582822eab07ac5c7c10. 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/DED622400186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d0300761193480dcdbe080edaf1ab1b0cd54cc5bf52b824abf9589e20aeba79. 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/DED622400337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x236dd68d4b6bbd8ce714575e159d6ec4202f9dc4bda215a0bb2aad371bf5d9c4. 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/DED622400187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3bfd28a6ac8ee98d57b7e2588abc2fe5fed44f62505f62e0059a6d022b807ab. 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/DED622400174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe20577ea65b9c86535d9dc7aa62d0be62cdf7debbea5d7caa92308833c0fc3ef. 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/DED622400175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ec0747d958ac834faf2496cbd3f06069cdc538bd3bd7b76f9c0ea29f1d2788b. 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/DED622400190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x954682fbac790c6c0594407044f1c9f8fe9fe1140d2b14817c63c62b0e48eefe. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/DED622400177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d52be53a6df1d674efb2514b6440cb2dc65f32c9450df14e13016290486d4a9. 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/DED622400178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01232e7f57e45cc8449a8f3e498f468c6883322767c16fb07d8c64eddb6ff384. 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/DED622400317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd69e88dc5c224b89b9b5072ee937bfa88f9b96a56663fe393870f0c662770216. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/TRCMG2400049.
Bécane (Kimotion x Quentro & Tuna Remix)
Bécane - Kimotion x Quentro & Tuna Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6153145abdfbb0b52cf3fb8a6a04b529ed48a1ff0c0e0ef28f7e631bd573c03c. 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/GBCPZ2423450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x253bfa1614f9232430ccaddedb9005397c6eac1cee45bc2ae6116969ff21e94e. 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/QZWFP2451370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6633161654e9d228ea62878c325b331557add96b7e0e07aafcc7bebfe11da68. 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/QZMHL2016170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe9031a2551793d54c08d8b0ed0c62bc39309d6edb2d8d2ab28e4f01faf2fb05. 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/QZWFT2492159.
Future Progressive House Anthems, Vol. 02