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 0xf0476479efda11bfe13b6780137dbdd8b716dd272f84828eea0d775d9adee7f3. 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/3514029d-491c-47c4-80cf-3deeb6d030a3.json and https://artists.proofprofile.net/proofs/artist/3514029d-491c-47c4-80cf-3deeb6d030a3.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 0x34e6e6ab7be5bc4480a775a417a9b11ca72890fa284b7ab2a5e1916ca578e670. 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/HUC571410163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad0c878dcfe6335e70eecb37a86e663a8eca0a78a64bf469f9bacea92644c400. Chain 2 (Bitcoin): anchored in block 958395 (2026-07-17T10:10:33Z), 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/HUA611601929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41a4043e35e97fba272261ce71a9af2801e23f5c01d8f3a66355b34264691554. 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/HUA611601936.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70f85ad5fe87e2ca201df45c92ea4f53c61b56311c7616619dc52c06772ae60a. Chain 2 (Bitcoin): anchored in block 957671 (2026-07-12T07:35:31Z), 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/HUC571410536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39a1cb81be6e441f9cedde7c4c6900d5b3c98c85fb07e343d7909e159b51537c. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/HUC571410478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x993ef5efc8335e97481b8f651db5ff92f9432e7c7f02fdcfd5486650e05bbb09. 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/HUMAG2200419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e0d07c88ad19ca683f175db140836f8e2764ec9bf90fd904c1e364b04b087bd. 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/HUMAG2200420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99120d3d40d491464d7d919fdbd8a0ee671c554f69bb5815fe3a01870039eac9. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/HUMAG2200409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x288ab753d5950874bb2d3c18b9ea4b14a375ae08fad4bd12edbc3ddefce966a2. 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/HUMAG2200421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c8ce4dcd5990ba4b6dd9d1b747717f0ab69138c13b0d5164d112f9956a5e32c. 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/HUMAG2200410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58d9c7f546c6a8241f47b095916c093c15fb7aa601409fd55fbe310388d5de02. 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/HUMAG2200423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaae14daee54f2461ad6158495ffb82f4887e6ff5fd516ccbeb58bf9b607b3df. 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/HUMAG2200412.
Nagyon nagy szerelmet látok - From "A Király"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82b72086208fa8be680c2f94f84ec85f860da0e5724b401bfca036116be3cb9b. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/HUMAG2200413.
Úgy hittem túl vagyok rajtad - From "A Király"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22d05c866f9935405923232d41fb2221a49f6d0c782dca76882eabeaf56070fd. 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/HUMAG2200414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7be3fdff40fef51dfc6c2395f66affd6cfb080f0cc76dfc26729f109a9b58ad. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T06:33:30Z), 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/HUMAG2200426.
Részegen a legjózanabb - From "A Király"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53f8bd1e09f3f2cb5a86f89380565b0c7dc6808332dfd00636351fe5213d0aae. 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/HUMAG2200415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0af79a1734172066dab01f030b7011ef6392d60bfe91ce299b6540a830bc9c0a. 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/HUMAG2200416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x188ca02c94bd3b501e553a8ca990281a9e019421901cffa555f104155e304c6b. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T21:09:36Z), 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/HUMAG2200428.
Forog a film - Panda Remix From "A Király"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf08eb86023fb076fe16d6e26521e0ca63be038aa388c2d68e3446615832d57da. 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/HUMAG2200418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ce5320bb428bf280013f32c9c77b89223b20de99981ec9c390f1d05a8bdb0d7. 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/HUMAG2400358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38c19b18bcac8d202461b2a925806702a64fe4e61c8e0b3ce90f99bddc91c79d. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/HUMAG2400164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31b08ce87529621aa49267c69f03ed61abee55ef289e3d3b85ea91b25d72758a. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/HUMAG2500074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeed44379ba7ee763e2bb47048dc2a5c7583817d4f2e0e1baaba8b3c5e2e0caab. 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/HUMAG2500075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54b0656680e287a2b4fe31ad7749b2db0156d5b18dec7d3f5e735201d45a7f7d. 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/HUMAG2500076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x609b02a101216132aface88e42020ca88b7044a1767e66ef68bbeb195e4c2e9a. 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/HUMAG2500077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5533403746c8256e989d31c5a535f30bb1bac606cce6ea3cd6f6380f38428428. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/HUMAG2500078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf53373216b99f09ae844d7fafb0772b996c86701125213265cf12003c8e060ad. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/HUMAG2400038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e3fa960fd87d7b28e0d7f20b3fafaa4a21670bc099f4dd852aaa5c3b2259b33. 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/HUMAG2500079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb75c192c7a7f4c22fa3233ad8dfab017766530d9410b217b5e8e3915b236f9b. Chain 2 (Bitcoin): anchored in block 958380 (2026-07-17T07:07:02Z), 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/HUMAG2500080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x318deee12ae0ba4ff47c972568352f64579978535c62d907f79412ed46b6a592. 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/HUMAG2500081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e92766495fd10d41d175ae54da3a101617fd95f5cee8fedba5641d7ef27ce4c. 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/HUMAG2500082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8503a90c5446c5567879a50ca16ea1ca905fffe96d03ca2eaa2dee25a9f99671. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T07:48:27Z), 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/HUA5Q2600012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6fc63a82831640d6862d083192a794fcf8062c02b5e6fdb3e57f838b72b2985. 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/HUMAG2500083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7be4a83e4bad8cc33e1dc1d2a6ab2389e784d6880fe6b4cd5449dfa0670a1aba. 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/HUMAG2500084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ce5320bb428bf280013f32c9c77b89223b20de99981ec9c390f1d05a8bdb0d7. 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/HUMAG2400358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeed44379ba7ee763e2bb47048dc2a5c7583817d4f2e0e1baaba8b3c5e2e0caab. Chain 2 (Bitcoin): anchored in block 958504 (2026-07-18T05:41:32Z), 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/HUMAG2500075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ce5320bb428bf280013f32c9c77b89223b20de99981ec9c390f1d05a8bdb0d7. Chain 2 (Bitcoin): anchored in block 958476 (2026-07-18T01:26:56Z), 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/HUMAG2400358.
Azért vannak a jóbarátok (S.Nagy István leghíresebb slágerei)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08a67114502e6dcda540d12fceaf201a712ac101a37b5939173d4ac5ed1071a4. 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/HUAKG1700900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc17d4e0cee8bc0997cb00d1aecf84bc399819f25660ccb794bb15e60ccb1ca0b. 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/HUAKG1700904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06ac37dee112d05c31ceaf2d3d5edda6f2c0628f97dadc6073b6dde6e6c016d5. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/HUAKG1700914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddd6e2521b818ab0a28d33a284f98292a5a9bab1359f28c7b25e7f300ddedcce. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/HUC571410152.