Kollárovci () is a Slovak folk music band consisting of three Kollár brothers and three other musicians. They were formed in 1997 but debuted in 2006. The group performs Slovak folk music in the Podha
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 0xf55ca6685641eaa0f897ce3c113faf8cd08a401e2701a2a820a5d5000dd0336e. 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/fe8c8c1d-97f9-4e47-8f72-2d11627d2b6a.json and https://artists.proofprofile.net/proofs/artist/fe8c8c1d-97f9-4e47-8f72-2d11627d2b6a.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 0xb40334ba7ab6661229e369b7d5c413a3bd642cd37520ffc80c2835d917f5b7fe. 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/SKI811000408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdddbef92413ac71dcb560e513c03e7a69de629fd6bf2a2688ae9fe3224c7dbc. Chain 2 (Bitcoin): anchored in block 957796 (2026-07-13T03:24:42Z), 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/SKI811000412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fb2ca5fe2a740d9747781e693b2e37b9a4c74f8cc32fd1a68dbd599d778f80a. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T05:50:22Z), 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/SKI811100508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x028b5c542b47acb05c6459e55befcc9f86eedf809a4d6aaac1692e5e7c417b49. 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/SKI811100510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48513f698bec4b2124e1379279699f6c1b413cee71d0b66cd990f9d9ead8b66e. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T05:50:22Z), 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/SKI811300701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57dc4136583626fbc21de05ad43e74e0c9288efc7e33aec63428be5d4b315dcb. 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/SKI811300703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1592cee3cae526ba4368ce9bd8222dd2a99bf2dd1e06def6d423945122c983c. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/SKI811300705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f2f730da852b01aa1db603a348f68a3b8631fe1b775524f81645e938aacce72. 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/SKI811300707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bb9c72202256efac31b7a8f9afdbc601e3bf641a9926f350e88547f6c8252dc. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/SKI811300709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34c036822e5b97ec81ba294b3151175aefcad600152a75a33a0807f30ef5826c. 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/SKI811300710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a06d43d1c5aab0b504beeccd99a3783d9aabea2b070019d0e07c533cef0721b. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T15:07:00Z), 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/SKI811300712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd07299da2bada5c94f00cd923be940ebc4beface0bf2dfa9abc00c8f23271862. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/SKI811500801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1128e2f6f2682a2e9efe22460db2c9209a1962da93ec2013f4b55971df718aa6. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/SKI811500807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fa950353bf5d61407625990e4e34942609795f46721d143eb062545bd8847f5. 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/SKI811500809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x289974f462065e5ef64d99e7efb5c5a76da614015faed0d81d077ce11bcb1a41. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/SKI811500810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74bdfeadc479745b7dd91269d3e9c17c8b953880636e05083aa0d8f19b801446. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/SKI811500811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed62395483c9f6ec0b4aba3ec865fe31666044c1f92b4e59d550b3585c0009b3. 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/SKI811700901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55bafc018a074469b26a085dd81661d72cf4b4f47b2010c6dcbfe9a64d2a3c15. 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/SKI811700907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41581cec52980b6c0cd92ebf364002da142f8ea52cc9ea8971fe230465239ede. 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/SKI811700908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbee881622777e808c138e0ced023cdebba581a4ff80f21b9696982f4539bb0a. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/SKI811700909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe60d65f50f7dadf8c7c7182360edd8df28ec915f9b1b6dcda8e4f6a09b0da222. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/SKI811700912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x229e9d6cf5200e9b23577eae5964916e791c8ddba608681a8773540045fa6c45. 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/SKI811901002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80980ad795ac913f40a9dd3e1fdb2eff2706def563e2161cbf33648dfbfaf1fc. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/SKI811901005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3172a1db41e7741580dfde07e9d4873fcfed7c7ed5e15caca04bb599f957ba88. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T05:55:09Z), 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/SKI811901009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed40d4ef05369f389d836c79e3bafeab27dd53b692eb173b2e9d431abbbbecfb. 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/SKI812101101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c5ae121c36692140a421ea2fd6605f69b9fc7e1c38827437cf80f5d704d88e6. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T12:03:04Z), 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/SKI812101102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5e2fdc654277f754f657da38dc7395a30edd421daf54c81e46b4090299367ae. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/SKI812101104.
Chodim svetom sam / Boze, Boze co mam robit / Vezmem si Ta Anicka - Živé
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6755e194aca30e03a6d3eec8d65950051f8a29f5935f4104b77988c5f35a4cae. 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/SKI812101106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0b8ee059fb62df218527664b26762d2818c39879614def1cbfb50536d68a039. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/SKI812101110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc7bc4d9e55a74ae6f5cd7ff642044cc4a7044d9f81c34ff5432cafc4fcd21f0. 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/SKI812101111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb8fd53a5dbd704aecb977f90da8a457ab57e64dc8d3675940f212656507ce16. 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/SKI812101113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c40cb3d8f45786a757e170500abf2de5e51ce843fab9496e5d180b908bdf788. Chain 2 (Bitcoin): anchored in block 958908 (2026-07-20T16:28:12Z), 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/SKI812101114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e81cf6fa36d698315898674f5dfaed64214c46bc240b0b027429fb4be38bcae. 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/SKI812201212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x434bf0e8795645a1b7a4d010ecc51820e165eb12b37fc8e4dd8211d815e6cb52. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/SKI812401301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3be08b21cbbf840151b7c37e5ba88cda36704fe3368177e43066b281d444da4. 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/SKI812401302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaac8c60ff2165e64882c6e6cbcde2f9a96c168f7eb14fdda58196f599b117f42. 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/SKI812401303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86ed2ffb369434fe4cd154042e0935322fbe5e87c872b1fb1469c3490386805e. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/SKI812401306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89708c76147af00e3d9e195827e1f387d2422cc8b63949d84f561cfac5f6e089. 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/SKI812401307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a97fd38aabafb363dbe60f607a96c7854b7a47b79375f7079b41b61b5a011cd. 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/SKI812401310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6130545f13618c0aa9e1af2e91d1e5ba608389dc1ba4d632c96872bdfa59ec1. Chain 2 (Bitcoin): anchored in block 959011 (2026-07-21T13:26:15Z), 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/SKI812401311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaea6250492f958d85629789283dc9abac41a3296779244cd4a3373830a4231d3. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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/SKI812401312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf39395d9660ef269814130d0dfc4d2fb74008cdb8fc279d50067de5ee306d242. 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/CZE561603503.