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 0xd027e3fc87b6e49f8bead9becece2b82e92b054bd75ab7ad3601462e0585696c. 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/78773d4b-8aa1-4ee0-b9ab-ff52e42a2825.json and https://artists.proofprofile.net/proofs/artist/78773d4b-8aa1-4ee0-b9ab-ff52e42a2825.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 0xb27020ebc7996adba184989f6224c7f21384021bdd94e555a385d81685f6970c. Chain 2 (Bitcoin): anchored in block 958384 (2026-07-17T08:27:02Z), 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/CZA161200210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a8837025827328e353cf67ffd19cd9c5d9cffef3009728ebf8c4d7fa2ebabb5. 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/CZA161200218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe131a556d70d20d5b30bfde88be82292f4434d801b2440c34e493bf7f43c3925. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T18:54:07Z), 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/CZA161200221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08c7b2c31be38083b7d9add9ab9b0eeb6cacc2d0c9482408b12c6ff44ce5e536. Chain 2 (Bitcoin): anchored in block 957583 (2026-07-11T15:53:17Z), 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/CZA161200284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0156379d7bce0cf2e10d3bd390b94373b72acb9c37c93b43ee82339ba273973. Chain 2 (Bitcoin): anchored in block 958506 (2026-07-18T06:14:51Z), 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/CZA161200288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf3c14c5acec8a21aa636a7f00874023ee4e3d0238df1c11a9f9e7dfffae6a91. 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/CZA161200290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91376926d669ac1c91aa7e0257d2bce6aa689619bed4a2bd62119a5150cb8010. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/CZA161200291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18f97db0dda03824d18c14ec0d311ac80caa506ebd93f87ad6f458cc4f5c5cf1. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), 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/CZA161200293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd2331ad11c121e70c3f25ce5864c4550064bb91fe32ba1df189368242f8d5c7. 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/CZA161200343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00460722747c50f0346e2a45541d39815632c990f054108b16fb690a8a7f921d. 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/CZA160606716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a78abf77bbb155ebe6a012169e8d73198f91f7e0c24ac619eb9f7ff28051b0c. Chain 2 (Bitcoin): anchored in block 958051 (2026-07-14T19:14:42Z), 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/CZA161200359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ae0ed871313b0eb39a21e9659595d2f2f01222a8acfa4b6f36e4623fdb0458a. Chain 2 (Bitcoin): anchored in block 957587 (2026-07-11T16:48:26Z), 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/CZA161200362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8be1f06bffd4932be0d53c8d1a26b3913c91d52e7da25a6b388d32789c3e2331. Chain 2 (Bitcoin): anchored in block 957583 (2026-07-11T15:53:17Z), 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/CZA161200366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b4c3d6f5cec58e8fdd1781f09ddc62feca3efbf1197b5a127c3cb2c77cf54b4. Chain 2 (Bitcoin): anchored in block 958680 (2026-07-19T06:04:14Z), 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/CZA161200367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb096080846bbea05d3ab9652154aa6f0d3a359a717fea882a669e8dc26fd0a4e. 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/CZA169400774.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1272ac40d66ad89fbbf21ad398bb262b4330d21d22b3b5da93767e853bcfc594. Chain 2 (Bitcoin): anchored in block 959071 (2026-07-21T22:56:27Z), 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/CZA110003003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40e594a23ff7f00c697f2da0a197ed9075288e3032255c8952e1082e19ba3430. 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/CZA110306397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30b7a142ba6aa796ba44da141f0deb236afbdf61391f8edc8a1361c39ecb111d. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T11:41:42Z), 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/CZA250201009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x399ba60fbe0006b53ea882a217ca3c13d1290e9744dc2269f6cbc5ff9f16bf4b. Chain 2 (Bitcoin): anchored in block 958658 (2026-07-19T04:09:09Z), 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/CZA250201010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x090f1772b5af65664b1780ad4831d760e5dc930be79c541a247957fb026d4cab. 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/CZA250201011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb893d769d37196043d9f2dc0e9884d692c23ace3c2e3a52e0157b5579365213. 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/CZA250201023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfca99f14596c64cb50b8f3513d6fdb3fe9c3d5364d6ccdd210be58b4a284e140. 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/CZA250201024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d55994f9a21682b8ee2807b0a511a3a3fa9b79b5c47aafcf35536c8c4c07498. 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/CZA160606564.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3a5736beb1829142bd0872e7ed78e60bdd8fb925bb3ee70276f78e9e0f6fc13. Chain 2 (Bitcoin): anchored in block 958788 (2026-07-19T22:07:06Z), 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/CZA160606961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe46c8712434d9592505f489ec7e563e37896c8ad2c4ff352e3f71393015dcba1. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T06:12:52Z), 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/CZA168000946.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x993adac714f3ad8d9c85cd826d03fa3cd728bdbcb33711b1ae1f2f8b443d085e. 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/CZA167600498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17bb8d7ef5869393965b348846568bd1c88fbb996c0f5c216604bb6f592d2b7f. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T21:20:45Z), 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/CZA160606951.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a3ee4c5d7792b27b654f2dda05b7313f0b1f3ee068ffeb517e8434d5af8e1e8. 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/CZA169051996.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c0a5793aac80997ac0f052c955a33cff30aba084d41686d3fc9b79c45ec8c8d. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/CZA168300840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0dd1bf78ad41aebb4b0b1baa07317991a93e45260a7961905147cf0266aa547. Chain 2 (Bitcoin): anchored in block 958670 (2026-07-19T05:26:23Z), 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/CZA160606848.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebed37cc4c15b796bb50255326c19136258d52fd034d80e479deb53ac24d9461. 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/CZA167900821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x566b6a956006c53aca85dfdb4a8fcbe90951a7441edbdb9b902ee1843912c0cc. 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/CZA168300844.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89b6d81bdf8474e66ca11aaf6e55576f20994d8b814018fad9838ea1506f9b83. Chain 2 (Bitcoin): anchored in block 958947 (2026-07-21T00:53:33Z), 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/CZA167700623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebc137adc8010097abb1daaec72081084ad064151bc68156e643a38318ad195f. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/CZA167600497.
Až Bude Mistrovství Světa V Ledním Hokeji
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cf58f5f255bb3e50b75bbe33023ad27bcc5e2311ee4e254623dbba0890aeb4a. 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/CZA160606240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaafad5df639d34ace4c14f929adabea185dc41ec25b1629f6e7e1c9561db8777. 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/CZA167700619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78d1d732591770cc97226f9a2315bfb9fb97faa60f4d65f2cd7b747942dca960. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/CZA160606978.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf716cd4be65c1f6fe6028eec0e03e866d3e5a443651633ce18b3a4605a60f55a. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/CZA167600430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb64e0cfb38d32be47fb01af75a60c66d8562d9b1c53f695f9fd6a5d7dcee168a. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), 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/CZA160606855.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc88a4d6f1a0508ef7dab07005706bcda4cafdab60f1527dd6a847996edd75be6. 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/CZA167600496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43a2c0457fc599dc2b987476dac1bcef9959d6f5e64cb03ccdbd9d2eac2882b6. 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/CZA167700626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5e4fecb683b251bad8c7a3731f43a4146d1e41c481b4edb49729d873a9e6b71. Chain 2 (Bitcoin): anchored in block 959096 (2026-07-22T03:48:36Z), 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/CZA167100425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b71629bd445121430c8138c53cbccc83ac38a030a363f4929ec0a1b7e8045f1. 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/CZA167900822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ebdcf1bc6d2e989b03e26a60b5da4238a9040b046d5da4da2b1fc184f0978c8. 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/CZA167900428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9860f8914f2b263f96a96e0c3085ceebf23902f46cf90e79dda8e90e3579558. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/CZA160606250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcfe52a0c82e49f52bff7059c9c5f7529ddec9d635589368b04d35a89d1521dd. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/CZA167700627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x232fed3df164b27aa357360f9bffc8028b01ad2f6e15b3f3005fb2181229a9f8. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/CZA168699998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a0a997f98181e3d6b00d51d6c321ae5b8c78aa8a32c1ed58f4a3ea169f2c1ad. Chain 2 (Bitcoin): anchored in block 958680 (2026-07-19T06:04:14Z), 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/CZA169051998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc293c054818def81202fc0dcc3af090f231503b28420e135587c48400600e73e. 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/CZA168599996.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdce55968c429ad877ff4e0da22977f2dd119e85aa3a07a44d4b9c5cddf3ccb78. 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/CZA167700620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ede35d47a2bf33a834cd4b3a5c26e072bbd7611436860f4e2e2a8aa29ef1117. Chain 2 (Bitcoin): anchored in block 957583 (2026-07-11T15:53:17Z), 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/CZA161100403.
Mládek: Zápisky šílencovy (Trilogie úterý, Moje rodina)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d8f7403af3f812ad65fd12e9fa82fbed12453e7e4fc6d161f06baf7efb63189. 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/CZA168386978.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa484fcd1dabdfc2d408a823e7a1a8931238b47bc79bed5b6b4470cbf38cb73c0. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), 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/CZA168396978.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc257f7fd22f93ffb29b17ff267e4c7d4b4dfe726d6a44e6ea54b0ec3a340f5df. 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/CZA167900826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0f7c19d6f847bd1c03f03efb9740dfb61ee9457a232a93b0a642fd9d67f465b. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/CZA167600671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb38dd6c8dd2897bd0e6997913a7f645a180e287c47d19e8a4a07391d3229b955. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/CZA161100678.
Jožin Z Bažin A Dalších 76 Písní - Zlatá Kolekce
Jožin z bažin a dalších 80 písní - Zlatá kolekce
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf760be145b1cf868640957f06d249b6cb1d8b7de296477424b18a40cb8a31a7f. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T19:17:28Z), 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/CZA167600494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa853ddb016c1821a65acca87b57fb3460629a293e55d0f507f4ecc71493e3934. 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/CZA160402863.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa347f1272d1c377c29c6a7cbade7bf41fbd7661b84b1e0859aa1173c3db6d874. 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/CZA161100679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9d8ce763c976184de466100530c6b34bc9a7981c1246ab961f1257841e7ac00. 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/CZA167600492.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4c77f237fb50c3362ca99a8c3d437d4602b897a960fbbeb2fde39baa6cbea37. 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/CZA167600493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26821789984e4a2851f55633e9e969c6ea7e66359e50f7ab29d648209c258ae2. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/CZA167700754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0f7c19d6f847bd1c03f03efb9740dfb61ee9457a232a93b0a642fd9d67f465b. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/CZA167600671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2670d2864ffc07c2e4b12eb5ac482bb6c9be3223e70583bb46b9294326e2bbf. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T16:14:34Z), 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/CZA167700625.
Písničky pro veselé děti a jejich rodiče
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x169d8e758de8f01f58189db5d2737fe682bc8d923846b651e9a8e4a7698d34f8. Chain 2 (Bitcoin): anchored in block 960296 (2026-07-30T19:11:09Z), 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/CZA167700624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c0378ad37486c6b3681ea44a79bc3bd4a84f01615c65ece837118075e2756fd. 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/CZA167700398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc88a4d6f1a0508ef7dab07005706bcda4cafdab60f1527dd6a847996edd75be6. 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/CZA167600496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x993adac714f3ad8d9c85cd826d03fa3cd728bdbcb33711b1ae1f2f8b443d085e. 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/CZA167600498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53bfe06340aac6bca699f7614c0c2be5e4c52357e14dca8de0b4744812f20d37. 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/CZUM70800443.
100 Let S Českou Písničkou Aneb Populární Interpreti Zpívají Dobové Šlágry
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b5aca65b14cc486904c9f92b8dea2174681b6b463c123d41a15d94d27759309. 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/CZA167500565.