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 0xda3dda89137f4d0f9ae96b1f404544ad1ab3ccd27e7057cc4d34a8ecbbbd7108. 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/0c2914c3-7d56-4290-ac2d-02a9a4366237.json and https://artists.proofprofile.net/proofs/artist/0c2914c3-7d56-4290-ac2d-02a9a4366237.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
El Yazısı (Original Motion Picture Soundtrack)
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 0xc90473512c65a08e04745ef5a6bee96c1815adde1f34f70d6f5568c8e6d2a10c. 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/TRBMO1900356.
Beni Affet, Vol. 1 (Original TV Series Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x817c08b01928f35d9c46fb8a0b19e7f254e68ad8c903bfb7d37d8cf542441c08. Chain 2 (Bitcoin): anchored in block 957041 (2026-07-07T13:25:45Z), 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/TRBMO1900368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bed970965892b519260ec1821c37129bc23f7db4043126fc1d4d33b8db7b7fc. Chain 2 (Bitcoin): anchored in block 960167 (2026-07-29T23:42:34Z), 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/TRBMO1900369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e20d034163eaa73888d432a7b213650bb8047f250e66f727dd14bfc1ea7d129. Chain 2 (Bitcoin): anchored in block 957064 (2026-07-07T16:43:08Z), 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/TRBMO1900370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e4aa7ceadc0b50b6c97ee7ffd7b57a79491ec662eccf0e10c62e122ef46e848. 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/TRBMO1900371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ec827f9dac23a753a44dbb5e23730088cf641c59aab81078bd7ded0bf1a697c. 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/TRBMO1900372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff59f043dd26a1ab687344fffd8ad2c7803a11419814d31d6853119da49a738b. 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/TRBMO1900373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e12d74bea929d01ccd90d973c07f6410137a3934f1c45a0fc603ff17d97b141. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), 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/TRBMO1900374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3647d7965b82fbf2f22e0c9e576b0b7fbc020d91aa44aef5c47195e3810be09a. Chain 2 (Bitcoin): anchored in block 960241 (2026-07-30T09:58:01Z), 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/TRBMO1900375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x499854f796ff798547d47224adbe5bd3362055156e9305b3105ea38136a55724. 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/TRBMO1900376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d67f80824b85d26de4afcea84e56332cfa6543f1810a378bdd216d76758e18d. 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/TRBMO1900377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd46231e376273b6f243dcf78b685d0847f675c865e265a9c0e9b5b447a7131b1. 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/TRBMO1900378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6160e8da571cd5efb8b446d548ff37e4c740ae86484630a163d2dca78e04454. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/TRBMO1900379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75f37538def64181a3101a022bc25d7d2f98f1b0bdf6491a65e0cf4d8e932cec. 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/TRBMO1900380.