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 0xddbce5860f951f366581de16af98f2270cc70d9dcc6ed934296f993b91af7309. 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/86e85498-e6d7-42aa-a972-f5c067dd3447.json and https://artists.proofprofile.net/proofs/artist/86e85498-e6d7-42aa-a972-f5c067dd3447.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 0xc2eeab2ab6c651f79258208c8bc796371ccbe56787291b47bb709ad75dcda033. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T04:30:31Z), 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/HUD781400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15f713bd62d14f065f1ee1e73d1e7aebe36bbbe4d42c6461e7e81fd98b085073. 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/HUD781400005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3c6d10d42d6754f38e420557ac1e9457fafbfffa90e1a021ba22cca401ec469. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T10:57:35Z), 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/HUD781400007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e80046e3566e4efe17cf85b662ee595ed48a7ca04612af6c669ac0f395fce4c. Chain 2 (Bitcoin): anchored in block 956859 (2026-07-06T01:42:12Z), 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/HUD781400009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c49c4f79a778073241b045b14e23d8907ce855b1f608fd6be2d5837754c314c. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/HUD781400011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ac7b16b62563777da32b02633ff7045b31d5eb622488ff94ad5e44378b2544c. 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/HUD781400013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x124e55cc748b4826465b8b4df556d3b5d49fd2c3f4a8bc7f6f1d5bdc42a97d50. Chain 2 (Bitcoin): anchored in block 958582 (2026-07-18T16:47:25Z), 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/HUA611700312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x760cc137eae28a3439d10d9ae1f3fa5fe583301a5f9b27ee94ecfb611b074503. 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/HUD781400201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffa2fbe1ddda37984b32e0441a61f5addcfc7587052e6d3cc19fa069a568fce7. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:19:01Z), 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/HUD781400204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa42624d0db5b0f0aedbb4f9f74b8a114a3ff1e9feee3940e86cc1a55c7311c50. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T07:09:57Z), 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/HUD781400210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfaee9de7a7f376365365d7d20edcbc5e16b0188025fc3b311b7df73b0543b54. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T06:27:23Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HUA611900012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b3220193e075c6d44a808a2e21bd9e0484c32b8c3d184844230f7360b3b67af. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/HUD781400304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d0102b905beea3962ece50bf235a2875ad8898d2ca21a6dcf107a9d499f3508. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T05:10:54Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HUD781400306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0754a2a32c20f358fd565f91833eecdc1087f9dac93cf4558f4fbf76c095754. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T10:57:35Z), 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/HUD781400309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed83e09e1ffee10217ad89681752f7b481dac4827f809f9444c77e5848b5c284. 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/HUD781400310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a9574361ae5c914ba2030cf90743177fe8f0c34652abad748064a9753184e0f. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T09:09:27Z), 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/HUD781400313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf376245a5beac3546e4bbf4e110ef9756b04232de3f3a73b30243ff6ec5b4395. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-21T08:26:06Z), 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/HUA611900016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x423eb302cd2faed0609118346cc5251a5f33d20ff1d99ada1cf1cbf1fbc26ff9. Chain 2 (Bitcoin): anchored in block 958785 (2026-07-20T00:22:33Z), 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/HUD781400604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dd37a1cf78ca9db91e5476414596f00c8d9ebc24d4c61d0aa904bb6918f5ae6. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T20:38:50Z), 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/HUD781400606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c8eb11fe773f0c41c2b7fa7f7bc1b5bceeea0c1a9cd2f811cee976e830b66de. 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/HUD781400607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x226fc6af6008d8a6fc13d8937c7cb5ac18728bef5f11dc10589a920ff14d4111. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:10:38Z), 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/HUA612100092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60f7cb8fed624a2dea8645f8bdd5284ee681854857b99e418140b07f4a3781d6. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HUA612100095.
Bulipalota - avagy a Hercegnő, az Unikornis és a Többiek
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc19be20fb66b041044125384587cab7179899eebd6b29dfa888767122576b24. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:03:04Z), 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/HUD781400609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e876f5fa9d67fffeca25d005f3bb6eb8f4b75acd9cf7970e5830fdf1e20a302. 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/HUA612400204.