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 0x8ddbec073f361fb7683a0e5a813ba20eed25b79f0cb225c869abe01371270563. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/58c8601e-e984-4853-89d2-d137fd4b3002.json and https://artists.proofprofile.net/proofs/artist/58c8601e-e984-4853-89d2-d137fd4b3002.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 0x1dc73b2954a8f821fd61684839478ea2d13e32a8e1a991304696c0988dc4c2b9. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/FR96X1629769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x860f309478569b1c75f6887ddd29190ac2d5e9a57e4bcba4b0baab6928497881. 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/FR2X41734735.
דברים שעלי אהובים - מתוך המחזה המוסיקלי צלילי המוסיקה"
פנטסיה מיטב שירי סרטים מצוירים ומחזות מוסיקלים (חלק א')
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbed820ae0331f20c64a842c4ecd50d2b16a61716ddad03934854daa66e2772d2. Chain 2 (Bitcoin): anchored in block 957820 (2026-07-13T07:54:01Z), 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/IL7192200931.
דו רה מי - מתוך המחזה המוסיקלי "צלילי המוסיקה"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6910d280285abb9f6e1a4b66baf08809ad04725becb657a1ee74b0d0f7850fb1. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/IL7192200945.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44dccee4f81fafca628c9d26bb7e6d84389e35b1e9dd626e63c6f4b9da927490. 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/FR10S2014351.
מסביב לעולם - מתוך הסרט "מסביב לעולם ב-80 יום"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd58bb687b341d8cec593c5d0f9dd064c3e5845592b8e06d1b4b73ce4b98601f3. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/IL7192200943.
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
זיפיטידודה - מתוך הסרט המצוייר "שירת הדרום"
פנטסיה מיטב שירי סרטים מצוירים ומחזות מוסיקלים (חלק ב')
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x219194003aed3b51d0fe94323b25f08b5412b090e38e6e0a5a4f2c5ee15d2b5a. Chain 2 (Bitcoin): anchored in block 960376 (2026-07-31T09:09:19Z), 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/DGA072230725.
פעם בחלום - מתוך הסרט המצוייר "היפיפה הנרדמת"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9278cabc30472408de11cd861e9c9065b057ae03c8820e5c0aba435ac274707. 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/DGA072230745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x748e0b380f63e9a23efe8f8cb15b8887b3658ec38df51a5bef89bfd8897dd86f. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/FR10S2014349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c16ea42de404d41b1cf4e0ec8104b37979f1dcec1f147bfae94b7237a3c55fa. Chain 2 (Bitcoin): anchored in block 960183 (2026-07-30T01:10:20Z), 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/FR96X1948518.
איך עף הזמן (אוסף השירים המוקדמים של אהוד מנור)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7dc9c42a9857fd5d19201ea4d3091ecd71c84f27f1b02a9d6f7e4ad067e7b05. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/FR2X42061054.