Grup Vitamin is a Turkish pop and pop rock band which make parody songs. The Grup Vitamin is composed of Emrah Anul, Selçuk Aksoy and Tolga Sünter. Previously, Ercan Saatçi and İzel were members of th
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 0x23ab7f11900299b70268324b919cdd73372c1e22fcdcf5fbf993dedc320bcbe6. 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/3ac7fbdd-98ec-454f-8607-f38b3eff7a23.json and https://artists.proofprofile.net/proofs/artist/3ac7fbdd-98ec-454f-8607-f38b3eff7a23.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 0x466717ee50a2d7c96674aafaf05798c2b0d2d15c8ea1b7565549597ae35a353b. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/FR96X1723210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb2df0ac0af8ea7d4ab3dd66abf60e56ca9fa9f9216fef26a7ec175526fb059b. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/FR96X1723212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cedede09c6dd49b373d0333ecdcb27c9447accd72fbf21fdbb61c4f9be40bf4. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/FR96X1723214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d8f6e259ca7ed3f14375b7e245337a94229d3c10e505a607c6e4e645037a4b5. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:57:47Z), 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/FR96X1723219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3c29e9b34241670709eba30927f387dde8114d355ddfdb33d30e0f5107b532c. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/FR96X1723220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1e5ef4e8b7ed645d145efffc912c677afa3ba9ec802a5519139760b039bf583. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/TR6931400077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56ef0b43e0a7e34a61a5f55a1fc09cadc422de2a97563fd4cb85f0ef2da616e0. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/TR6931400064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf85f549ca6d0474d8396314170b4fa5ec96e6157be35afbd847c5000badfc841. 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/TR6931400065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe324af6cdce66d5c4b85c5afbea343a892cbbf72fb6bf7dc07886b36c6e6437a. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/TR6931400068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0db67332cbd5c1fc529e5f455b9a220bc0a0cb257365f3ec623432810cc116ef. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/TR6931400070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb6182582fdfbc135dff0697b2f497a1a1d86f5937e06d46f6ecb786151081af. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/TR6931400071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89d52fc05eec87ab0de270bdf964a9c45997afca8b48e92059a0340f0cd4f8d1. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/TR6931400072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03160a4da6456c582397ed6438084e24855bd0e037e375b94cbb41ca9e7d9c9e. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/TR6931400052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a5bd09fa847a5b707a12f98fa676c244c21b9998883915f7bcdc6f3b39bf905. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/TR6931400057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x113ea014522c81c4cc6a183eab38431a23de219115814af75b46288fe48ad3a5. Chain 2 (Bitcoin): anchored in block 957688 (2026-07-12T09:52:21Z), 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/TR6931400058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a0e276f82bcb596271ca55a05516fc6cfcaf57a8d28443cac9b7779f7c4d37a. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T03:05:58Z), 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/TR6931400060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd754778f1a0edfac6000b6fd4cc97ef11339a7e9807774161d92829d81295870. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/TR6931400061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x868d74ea2e7ab49cf1aa72b7d9c1c7bf1b4c94ad94a88c2165a601a5fe2b1b69. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/TR6931400174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6f773e5ae61445fe5b977e4f58ce3e93bbda4dc0d7ad87138c97ab4f5c41474. 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/TR6931400176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d1c0378b1d459e931499ceb2e8ab64f3c2ab238ac519db3f8851d11a53a4811. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/TR6931400177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2d8f43fb2a0f064d4c887aaef232601341abfea7ba0a8db36f39434dda89724. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/TR6931400179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ac08c7a34ac66768800e6fc5c73490949c3c478b1fd63e71546a0f8f82ab8c0. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/TR6931400183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd71da4f5ccb99b844d37c9e4aa9a659fda951644292f68a7d7e951efb71dfc61. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T11:08:10Z), 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/TR6931400088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x390f3162872fda89f37086599dc89599934ee8ea970c6f2d71c5c53b8f44a62e. 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/TR6931400089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70fec95c95c76718aa1b69b4a48b1dc9fcb86c397a261693f9af221770c3ea77. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/TR6931400090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefdae9c0efd81d3b1d989dbcd537e52315edac94044c26f0f01296bbfd8ab480. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/TR6931400091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x129bd50afe7c2d165c21b4bbacaa78750cf4d0347a5a0cc15fba98359844a13b. Chain 2 (Bitcoin): anchored in block 957684 (2026-07-12T09:22:41Z), 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/TR6931400098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bc9d3ae31d69c06c15cf58851a6fe745065a77fdb2a93ed1b37ff06a38c1aca. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/TR6931400097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8487a235aaede9fa5a0860c9867b7186e3afd4ab6aa32b72c14a7a52506b6c87. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T03:28:38Z), 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/TR6931400096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x113ea014522c81c4cc6a183eab38431a23de219115814af75b46288fe48ad3a5. Chain 2 (Bitcoin): anchored in block 958392 (2026-07-17T09:46:31Z), 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/TR6931400058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8951084ef05c3c07e4e3abefbccb66b392ba7de62eb3db4a24d2bbb2b45f358. 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/TR6931400175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66b55920dc4154485860c5f146cdddb20f7e5da87402833e3aa6ea2cdd7ec812. Chain 2 (Bitcoin): anchored in block 957688 (2026-07-12T09:52:21Z), 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/TR6931400063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c84b41e7e43f609bb9822e78eddd6c1c7713dd0ff0465598f73094049108970. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T03:09:17Z), 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/FR6V82487171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ced946d9e7c95b3992b8384c33753cf0124b5f264e8b36f4002ac5d232de10f. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/TR0391500122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc99e2bcea764db420e6dc68eb6ba49d895c70a36e2374198ed5459a9e406e9d0. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/TR0391500123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01231612e6ff42d11d2b9a38476db2b6fd05a1d3cb292267a38ec20db90cb4c4. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/TR0391500124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde28e4522e27d53a3872f38df1d0b0100795dba6b0d63099cd7bfccf44b468b2. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/TR0391500118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ced946d9e7c95b3992b8384c33753cf0124b5f264e8b36f4002ac5d232de10f. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/TR0391500122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01231612e6ff42d11d2b9a38476db2b6fd05a1d3cb292267a38ec20db90cb4c4. 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/TR0391500124.
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