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 0x44672639be08a21ca8d69050bed6be1838f43d0595b96d97ba43773a058e3433. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/83cb5664-507a-47c1-ab69-385cd532c557.json and https://artists.proofprofile.net/proofs/artist/83cb5664-507a-47c1-ab69-385cd532c557.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ddd2fd9526918c6f2e9807f8ec01937c9a587e840cacf29f01516fd834945f5. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/HUC591700322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24ef42c7993b8dbc669e412a6415f7e225aeb58a458107818a21f8535cf2776c. Chain 2 (Bitcoin): anchored in block 959138 (2026-07-22T14:10:55Z), 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/HUC591700326.
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 0x59587e83cebc53ac121d599c9983c45822c686a35bee6500f898bd79b26c7d00. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/HUC591700318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7dd89bb1dbf464fec7930c6f6052d825b803fd37e84282d26f52276e2de7ec8. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/HUC591700320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dd3409feb06a76c9b3f64e926d47fa0b413d6f0017a1e86e1cd2c74a56e28c0. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/HUC591700321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83c3dde7de2250dac2f7dd21551d8d161c137aee54866afce2f61259c40df1a8. Chain 2 (Bitcoin): anchored in block 960340 (2026-07-31T03:15:04Z), 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/HUC591700325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a30a43f8644fa035d4ec068d8a7f232ccb18f4725d5ddb7a2b836374325ecb5. Chain 2 (Bitcoin): anchored in block 960506 (2026-08-01T03:50:58Z), 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/HUC591700327.
Mária Evangéliuma (Jubileumi Koncert - Müpa)
Bódi László Cipő Emlékkoncert (Live at Sziget / 2013)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b3e76871eb1ffef84586fce2335265c0779913c9bc9dc7b45d45d2bceeec433. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/HUUM71300135.
Kék és narancssárga - Live at Sziget / 2013
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8b035a93d0c0ae855757ebae9c324f051f0cb5cef9f73ddeae72553aff3b39f. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/HUUM71300156.
Ha még egyszer láthatnám - Live at Sziget / 2013
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1a6ef96fca3ea2f43c5999d7bb81567c02f86f649a6db95fdba7ec88e345925. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/HUUM71300137.
Ég és föld között - Live at Sziget / 2013
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x589339431b41e628f62d826def18e61df17a365705179166fba1a7af31e64171. 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/HUUM71300168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0af698f7553fd0ad37f8c33ca26cc9e071b2e94b7a6bd40b3683142c2da1d3b5. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/HUA252660728.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8c51f001b71e124849e56207ab44a357bdc932a08a6bc38ca443189547e5113. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/HUA257111501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75b14bbf7a2a78ccee483fc88c3cb791f3f72295eb79cfe8df0580e66c60fd0a. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/HUA257111103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9696bdd377d8dda60d74573e3f0339cebce6bc1900d70e016f2046229cc6d498. 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/HUA251799107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f3fa35190107ef12373d7374b5a999acfe72dc8e5f32291153b0459420b616f. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/HUA257111108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b8845332b94bb7255c272d7e5929d50c3c1eda4b114578cf643613b7ca47d28. Chain 2 (Bitcoin): anchored in block 957055 (2026-07-07T15:12:44Z), 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/HUA257111521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2c6c9ef2caf89b7edfa87246bb8db1e0ccfe0325ac898b1e572baf20d3c2814. 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/HUA257110201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe33709a1143dea5b9e4784fd226c6bb57ef5b1281924062ac04165d2214b6b76. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/HUA257111510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0520ed7aba241265e816f945b77d2ed9601e9a4ef3320a714b0128f714b8319. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/HUA253789907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f7605118df99b5694ec387eb7553604510e5bed621114d72caf00181c85b201. 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/HUA257110301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36505329c5c4c811563fbd0e108891e919176d3c3e6a2d92a4df783510f2f37d. 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/HUA253789904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe57a876127447017071d89d6e9cb4bb871644d2a63b375974ea5a3ed13a6258e. 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/HUA257110312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe129372db089600fe6c2f0d5336ccf86b36d3ee851ee56e3d8e4a51a98d0dba1. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/HUA253792804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10d7da74c79de1e26b7ee1cb61c57734d30f002c60262d2366f4bab2711e421e. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/HUA257110409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1db4295f554d5b0bcca1ac994a904ac43a0fb213d274794624a0dae1da9d1b66. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/HUA257110503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38e965ac1b7d859bfea52cf7dbd9b7e9a12cf04cfea9b091cb7f070e591fdf5a. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/HUA257110504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe12c431b87a8eeddae0f957e14be4d13bb58a61d4a7c02c0c8771a1c2ff7dfb9. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/HUA257129912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd10ab2e4a101fa67cfe6db37cc6185a42a680c8b52f88fd6e22db10f3e6a516. 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/HUA257110803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44c2a794f17b720ae364ccb0825ed550f281dc0c2617d350124a5ef53d76663d. Chain 2 (Bitcoin): anchored in block 957020 (2026-07-07T09:18:01Z), 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/HUA257111001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x239d705672a4d8a0fd224e98fd1210bee494ff9a247ebe5ad20c468cf5a5fbaf. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/HUA257131122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2da78869e04cf3f4cd784c3261029fd2ccce4f28eda4309d36275a05354c805d. 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/HUA257131502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d21543064ac76c5c09220932f45e264f1a8df13a12b4f8d6b79b37746b4b8fc. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/HUA257131509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4a322db58ef28d770018c818722a2749360c5ea7d0db3f412b55b85a52c0fa1. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/HUA253784304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c897f42a2197481ebdc33ddfd608106e8b405b828cb724bfdc9257e622b6e7a. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/HUA253784310.