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 0x20db51e0d7aca717edb7ca9187ff1cded9b6ffc4aed5c86a62a01df1fcd1a7b3. 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/57bf409e-477a-4944-9925-fd3b4e8c3cdf.json and https://artists.proofprofile.net/proofs/artist/57bf409e-477a-4944-9925-fd3b4e8c3cdf.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 0xe7c753ac8ddf475418382b5a76efddfff0358bd8d234bcfb732e22d104de5e35. 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/QZWFR2304677.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdf54b4eb503f39dcd1e769541789092774f25a0b918d1a730e44157cd7f7112. 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/QZWFR2304678.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4725310019267222741e23af83979cd3c498f7eead28913282692431bf5c15fd. 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/QZWFR2304679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d299877c860d9438f78c9f8992a52b64825ab767c3c1ae7ef3bc05f56121709. 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/QZWFR2304680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8c2190c11a7e48b9f44ff19728d6fb9cfb018e857b1cf613eed789baaa30772. 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/QZWFR2304681.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a7ac8999ae7c02afbf12e7c633072b324f8f53a2bda199111f8c8637c3a24fb. 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/QZWFR2304682.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3404944a110096fff03847d8cc33f04d9df82944cb64d8c30c63bcfbd0a4f72f. 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/QZWFR2304685.
Awaken Your Soul (Lorenzo Taglieri Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x550cd3f35206c6fbfd2a8e37f37ed7ecfe362465d78acf3f1cdcf00fed97c2c2. 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/QZNWY2339235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb81a6084b7b5bf385f9ca8dc82ae5ab373a7edd204fb555d0579f373ecbe79bb. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T10:04:15Z), 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/QZMHM2205351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb799a97253183f99f8dc24a78ecaafe9df969e73197d0ca1c3e2ce448d587f9. 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/QZHNA2275371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x118228345b26dac7ee3000b14e664a850cd3708507236715b49926ac8bdd7707. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T20:57:24Z), 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/QZDA62202019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x053f05466cc89b1772968a94b4d48b24d37daced4058e704c054e3b6ee3cdfe4. 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/QZDA62202020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8aabe34e6c7b810507e619a1d48004a38f2da49f9b562df3edd69d631757f5b9. 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/QZFZ22219329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56ecb2555094f6f4cfb469f2be52e9cfb4a70a52cdef4edf0df4c8a427c9d687. 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/QZFZ42130936.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc7afdd8f10288ce8787c4f62b62948d7489a4826fdf428e14803fe244567fe3. 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/QZFZ42130930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x452ed54ecf4b77261779df767c84db8517da7ce28b9fef3de0209d2a84c9794a. 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/QZFZ42132339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e13d6ce323356bf9cf64ef9310eb7f2681d391344afcc8b84c4a123be89284f. 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/QZFZ42129508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x080f1ad3b39ee7771aa627324f6af04e4278e11c979c4dad904ce5a3ad3cc9d9. 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/QZFZ42130924.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66c92c130ea5270151a2fd952023abb6fab1a586c282fed5bdb6722e9f431b81. 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/QZMHN2025508.