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 0x3fbcc47cc33f9a867c50142b278345caa4d09794c27a2f067213a49bbb83bf9f. 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/50eed82b-00af-4c82-ab8f-03b3f2e1fbfd.json and https://artists.proofprofile.net/proofs/artist/50eed82b-00af-4c82-ab8f-03b3f2e1fbfd.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 0x286f80aa1c5c8a89d04d95e24db1d92579ce590f656e95806aee568e27c23544. 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/QZPJ32268843.
Departure To The Front Lines (EPIC Cover)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9e74ccc44f628294af3d58021791bc40573543a078b80872b951bd63b694853. 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/QZPJ32328923.
The Power to Change Everything (From "The Dragon Prince")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf62459696ad506c5b5f0b68544bb999d036b90dae277008e3ea8de6994505805. 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/GX8LE2323951.
House Hightower Theme (Epic Battle Version)
Caelestinum Finale Termini - Dvalin Theme
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54af8411b3a10dc0e47d98f7f2373ff423d8fadc0c391223527a0f57ff396c21. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/GX8LD2232568.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fb5570b5d4d54f644e8aab21e1036b5d8b10db97ddf6e25d8c9e727dfff56a6. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/GX8LD2239864.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27d6b897d869db16a58263704211f07b754f2e64e59dba28adbb9d0f337778d0. 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/GX8LD2223023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03252320b8008c4eb7146b3e0527dfc17406294fdf402237071826cef48df24d. Chain 2 (Bitcoin): anchored in block 959089 (2026-07-22T02:17:57Z), 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/QZPJ32445551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e78b13fed0b613ea6ca84b75e0085500b6263c5adfb90364784d1e1c97220d0. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/GX3HH2395898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9fe66b7222d65d5f8a017570aa5b4f73267652478a954d678d2e5f36277deed. 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/GX4R52339210.
Splinter Wolf / Attack on Titan (Medley)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9b8cc14d200012b3e2986dca112279b45cc1b09d2f7e4000dcb98f685d74016. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/GX5MY2393525.
Attack till we are Ashes (Trailer Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28df399e9a5c1868c539cdb46c0d146fa855da47b8556575039d7dc5e8cafcd0. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/QZPJ32331657.
A Dance Of Dragons: Meleys vs Vhagar Theme (EPIC Cover)
Soundscape to Ardor x Treachery (EPIC Cover)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7eeadad9f8e5276f1f4b01c88ed6b74e345cd7112883c5cadde88deab1e1e4ae. 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/QZPJ32384060.
Overtaken (EPIC Cover) [Remastered 2024]
House Lannister Theme: Rains of Castamere (EPIC Cover)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a0aa3aa48bbe89d896195b8312ef9bb5d07d40e81dcb41f3aa73df5f8b4c7a2. Chain 2 (Bitcoin): anchored in block 959073 (2026-07-21T23:25:37Z), 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/QZPJ32385560.
House Targaryen Theme: Reign of Targaryens (EPIC Cover)
Sung Jinwoo vs Goblins Theme (EPIC Cover)
Hitotsu Toya (Ubuyashiki's Daughters Song)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69821db9b3f2c832cb9486610f31664cd610c6f753b115e152e7bb745fd4188a. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/QZPJ32383000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d80e4162a5012af0aaabb3cacadf9297a305c89809b74c773cc270bf3720f33. Chain 2 (Bitcoin): anchored in block 959088 (2026-07-22T02:14:33Z), 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/QZPJ32410235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43b3837d991923346ac681a85746142b9905071d165fabcc66e20ea15214ada9. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/QZPJ32414507.
Moonlight Sonata - Trailer Version (EPIC Cover)