Frank John Yankovic (July 28, 1915 – October 14, 1998) was an American accordion player and polka musician. Known as "America's Polka King", Yankovic was considered the premier artist to play in the S
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 0x05f9b72bcd213f48f83cf65250f6529589552c3770cca008857f4854b4805fc7. 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/e8320d29-b5a0-4e8d-bbb1-31bded704cd7.json and https://artists.proofprofile.net/proofs/artist/e8320d29-b5a0-4e8d-bbb1-31bded704cd7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Plays In Person The All Time Great Polkas
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 0xc37a050aadaaf52bef77f08d82e4ef04f80b5cea44fa236cd5c83766840d2e71. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/USSM19912908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x079fa47e7c228eef2a656619ab5958360caf6f4da9ab4667c7a706402b1787fb. 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/USSM19912909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e91e60f35a0bfcacb795dc4a8d33d81a0b723a8c1c2c6701eae4b84b37f9ead. 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/USRC16808008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46bf9d301a83bac460fedcd7a962975177bb3df6bad73333668aa09d1e90fac5. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:20:41Z), 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/USRC16808006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5f734d574bd1bcd9a11121fc3660a6522a47a40d8a163a91c1b432ca1792577. 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/USRC16808005.
Frankie Yankovic - Toe Tappin' Happy Polkas
Frank Yankovic & Friends: Songs of the Polka King, Vol. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34fbd9a4a9e4ba5fbdbc9fae100b3b28358c3a27f81eaba2d42f83dac4f561d8. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/USSM19912446.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf73ac3c03423528b012fdc6b1193e3b3b639156f72eb30d435bfda0f7e276232. 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/USSM10404088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x453a6e4038e82dab0feec20dcdba5f0d70efc4a68cfdc0479aef049e6bef890e. 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/USHM81152097.
Frankie Yankovic With The Great Johnny Pecon
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb943a031beed158cee5cf6fea7a56d6d4a29007465190a7e9945da6abc75ab40. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/GBLGL0905537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b8f567a7345fe7f1c15c0e8879601ab01654a42a0426334988e4020c061dd6d. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/USHM91493672.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71e007659a787596eae647b7415e5602718845dabfb48aa64bb4961a91d7f7c0. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/USHM91493674.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0abb9aae05c835223aa3f01afd6ac022dfa83561158a69c1ef6a2a200f049796. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/USHM91493675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26488e5835c9cf21b7e495be28a6ffe13b6c17e19df9b1769b37b4781c497a00. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:55:30Z), 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/USHM91493678.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f3d694347d99b5f7b9a5a03f39abf612f8224c0c9c4ea75d5f740e2eb06e3ae. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:19:55Z), 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/USHM91141520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f0d5ec13a3e92bc1625db3a19a08ac9ccf1ce6efbc41bfb7dd8a7d1b77aa84a. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T22:00:07Z), 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/USHM91141525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe97ccde94543faeb308878753a6fda579c3b71251aa3c43b7ce8ad4563bdc98b. 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/USHM91141530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05b678d1dbc7ee2773882b5ef10db17927295b8af5b6d9f392aa3cc5e8c777f1. 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/USHM91141537.
Chicken Dance!: The Original Party Music Classic by Polka King Frankie Yankovic
Who Stole the Kishka (feat. Kinky Friedman) [2021 Remaster]
Frank Yankovic & Friends: Songs of the Polka King (The Ultimate Collection)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc9c3aef95387b4f1a82bc9177d82866f15e986dd154e43a39fc2592797d066b. 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/QMBZ91918678.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x861f42bba27aa5bcfd4e37460e88c7be3d45996f859a62a5e1a3d845bc942b9f. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T09:16:54Z), 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/QM4TX1953036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2592bbdacc18eb533cdfa29af01731e0ec58e6d71e4bcc576dffa3149850a4e5. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T06:27:23Z), 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/QM4TX1953040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca7ddac01570205050be48493f93ec9ebfdc5bb616bddf893fdef1014686c18b. Chain 2 (Bitcoin): anchored in block 959051 (2026-07-21T19:48:03Z), 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/QM4TX1953041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52f065f5baf2be77c756e02e0b5d5c228cbfb98e5c248445a9fe158d47a1e86e. Chain 2 (Bitcoin): anchored in block 958407 (2026-07-17T12:08:48Z), 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/QM4TX1953042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba7e3847be7b95106b8fc4ff333ec909f2a03590995ad803ef0060c0bd855b0f. 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/USSM19912439.