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 0x8e2c57625c6d6f40d4a1b968ef92b00af8326505cc056b6bf7f2563a98c2b944. 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/085af0fb-aa85-47a8-8738-7bad4d6e0f3b.json and https://artists.proofprofile.net/proofs/artist/085af0fb-aa85-47a8-8738-7bad4d6e0f3b.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 0xcc4fcd8dbcb29b8d70e7d2b6f2949fef5dab504ad602474ecffcc2a7cdb3c702. Chain 2 (Bitcoin): anchored in block 958218 (2026-07-16T00:33:33Z), 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/HUMAG2014141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4320aae0271670bb2fd0a4bdff15348283d4473f2e01d802bd5d8bac65b2c638. 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/HUMAG1400224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f0e562d3e2f8ad1c3707e1a4cae7c5bda31a0e46fcb7cba73e43964e5531b16. 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/HUMAG1500048.
Emlékszem, Sopronban (A Volt Fesztivál himnusza)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeec56ae2a159d11be75693ad10f364ce4bac4881bb67997904d0b087f3921a2f. 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/HUMAG1500306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3403872efc3068500bbb2d5be56b9ebfbd7ac0b2daf22ead919f67fb7b100ea. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/HUMAG1600380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3d5badd6d39389b99f89f683625cd8a2bb49c5bcf677400af2cb3964c6225d8. 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/HUMAG1600383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ddb7131b37e04aa39cc2f3d548fbcf8a6f4c17c4993fbb5446c8781414e618e. Chain 2 (Bitcoin): anchored in block 958686 (2026-07-19T06:43:29Z), 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/HUMAG1600385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73d144de1d37ad10eb94d56cdd3533ac689099f9badd5b11edb24b94e2d32875. 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/HUMAG1600389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0a25b87527cf50fb8e0b9f3e17566a5ba4447fbcad95af668d803887d745d30. 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/HUMAG1600391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea85c888b6017e85cb0c4c730254e4dc50275aa34025edac7fb27c4a696a0742. Chain 2 (Bitcoin): anchored in block 957884 (2026-07-13T16:55:06Z), 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/HUMAG1600514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2d9a13cab60edb88666c339472903cc63ee350ceb00b62bba971783698c8d7f. 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/FR59R1728188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a5b2682a687e79dc06a411f200fbba8d8a304daa650a07857ad6a2fb4c8f3ae. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T02:46:47Z), 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/HUAMV1700011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ec8b674f0969459478ada2c3541bdc5172b155c07c74ddeac4ed01cc2b6c539. Chain 2 (Bitcoin): anchored in block 957884 (2026-07-13T16:55:06Z), 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/HUAMV1800014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6971cf7ea466da8b60d8a252e699c84457565321e201b34c80703dbb9a6ffc1c. Chain 2 (Bitcoin): anchored in block 956482 (2026-07-03T10:33:57Z), 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/HUAMV1900050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b1e28d396a69da34e3a5bc0a61c17d9f6c0f9476d589d4b6f6a2c8d4fdf83d1. 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/HUAMV2100013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f28571e7c34ef7e306d015d4e24501eed7692420c2bb5aeef0f09f0c197ada7. 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/HUAMV2100019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c925632104aa43f0e3ae8f8bd9e5c637eaffb2dd88f45c5c1859de3915a1fc8. 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/HUAMV2100050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7b5697665abce80ae7f3cf91b41b82cef1b013956832dce98ab882ca477bc33. 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/HUAMV2100063.
Csak egyszer égsz (Nagykarácsony filmzene)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36d170610746583f3fc349c538026e023701af3ef3cf0ea04af73dd6e22012b5. 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/HUAMV2100067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f28571e7c34ef7e306d015d4e24501eed7692420c2bb5aeef0f09f0c197ada7. 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/HUAMV2100019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b1e28d396a69da34e3a5bc0a61c17d9f6c0f9476d589d4b6f6a2c8d4fdf83d1. 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/HUAMV2100013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8314c2b3cedcad1e7aa4c98aaff2ec572645c0b0c6c2b7e5ba245966d9599c28. Chain 2 (Bitcoin): anchored in block 958571 (2026-07-18T15:39:25Z), 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/HUAMV2100009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc72c7caf67d27e8a09b73e3145de28eee15ab3881aa7bb7cff397030bfa37169. 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/HUAMV2100070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa54f86dab3982e91933463dbfdd6231c9eac5472ffde36722457b47110defcfd. 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/HUAMV2100072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f6b29c28d43bec15badeb94cb7bbf1331983a39f3285b5509cd38d343263a6d. 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/HUAMV2100194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4ba1ebbef630418dd484668b850df78e3527a17736386036a39b351a8976dcc. 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/HUAMV2100222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2027f503a273c1767060dee8388cccdc29ea5ee54d4340009feb5182a4841e46. 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/HUAMV2100228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedab180f8eb353b6d19ba0d37d9ade79e1dcd02e4c1216e6eb56913fe247c921. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/HUAMV2100104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ddd24274a55800a9f742b9e9efc87187f43d993fbcaac92263e7ec8f62daf73. 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/HUAMV2100107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f6b29c28d43bec15badeb94cb7bbf1331983a39f3285b5509cd38d343263a6d. 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/HUAMV2100194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf59bd3b94ea3e9d8eaf35b00b36f992eae8323974a17e3d265758e2b1cd1b77c. 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/HUAMV2100208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x754da1e08f6a504eb9f3c00298efc0d0c514b21f3e3e55b7eb1604a071e71310. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/HUAMV2100088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2027f503a273c1767060dee8388cccdc29ea5ee54d4340009feb5182a4841e46. 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/HUAMV2100228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b374c9b825a4c7eb245984f178906a97f2d3bbafd5ba6e61dc4399376030a08. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/HUAMV2100206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4ba1ebbef630418dd484668b850df78e3527a17736386036a39b351a8976dcc. 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/HUAMV2100222.
Részegen egy rolleren - Die For You Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x244471617194185a385e1b109b4995f00858ac0ba805a74ccd6ab1f63c5cbf28. 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/HUAMV2100272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7a7fea8380acc2d9744f26c78187b3556dd87e0a4c3224b868121f1350f33a5. 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/HUAMV2100271.
Dolgozzátok fel! (A mi dalaink másoktól)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe631eddf852355380636c589c8104f98ddd8a48e7955490b108f5207f7da8f3f. 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/HUA611602065.