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 0x8d938e655d1a0abb387643081a21606abfb822739cb168069ed6eb081c7703f4. 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/8389821b-e01c-4b2f-aa71-532ca1015e55.json and https://artists.proofprofile.net/proofs/artist/8389821b-e01c-4b2f-aa71-532ca1015e55.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 0x176547c2868c5948062106c707aeb725fe0d9900b2f855c02520a4128bf0ddd7. 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/NL4VT2100338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52bad97c08f53cae7d5dbc499ad2cd17c393e2b70493007cd912d66e49b520ae. 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/NL4VT2100294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7cbd28b92145992d204eced1595951ce3390f0c198514436e7ab079a16d282f. 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/NL4VT2100266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7112ecdef6aaf633c8dd41cdae609bc3f2179dcec1e3921218ddf009a56db681. 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/QZ5FN2317539.
City of Starlight (feat. Heleen) [EMKR Remix]
City of Starlight (feat. Heleen) - EMKR Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62f12055eb9aa8723816d01d88a20a3baf8f9aa9662dfb00b4da4c10ae0afed6. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/NL5UG2200101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e36cf7f8f4dbfb04dddd3ae3b99ba15f4f72e3813ef10860d8dc621a1145069. 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/GBWUL2212616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d3db07c82b1a16831fedff642db14426afead6b1bb96f330f4e788c22eed0df. 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/NL4VT2100141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2523289dd1e1ff612873f590aa0c6b3f095b2915d8d28ffc83a5478b92a0c3d1. 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/QZ5FN2203515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68e2a07c25a83c871a2fb7b9cf55089a52aa806164d6931e2c282f05c6e1fa56. 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/NL5UG2200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34dd565b265f73695d28dd43b352081891eba29f8dda3d853e1938fd6ed95857. 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/QZP7F2126880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b09f723d02942d6d8d571fb41d096b1c81efef0197d1828cbd524362a7aabe0. 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/QZP7F2115467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3272e69c44b544e69c6e6a221f2122d666bc92a127d56c787a428b959705c4b. 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/QZP7F2115239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5039f6cb06b918f63b3e756363eee7547479aa389d58df0e1cefe796072f6c15. 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/QZP7F2115238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ade30f74b5ae837f74ac03f05541dc6fcfeb50f8a32f437b90f7a4ac4ced2df. 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/GBLV62025327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dfd8af1af4491aae25662ec5502457cc7d43edf0431dd4e3e8611d6a9028227. 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/GBLV62025328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf12b5ae9050e080b223d4617fad9a673b1787d19601baab56a614d87eadf6c4b. 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/CAWHO2024767.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d483ea618a66fff706b0d29b33e7b93dcb9105437498aa5a81bb7ccbb2eb9d1. 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/CAWHO2019637.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7984435e485c3ca5374756d3f7b6fe20e159936933da31b7866d9c96aad24737. 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/GBWUL2087418.
Spacebound (Quartzo Records Miami Sampler 2019)
A State Of Trance Year Mix 2022 (Selected by Armin van Buuren)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbb92d44dc023380362e1d4f9bfa0281c6abf8ff55bbb1cfb8398a8266327fa9. 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/NL4VT2100140.