{"copyright_id":"0xdfbbe4a428c7539f5c7d2187bcf7bd5c6a4dcecc28bbbeb6e14d7d8a797c741a","name":"Alejandro G. Iñárritu","registered_at":"2026-06-14T09:48:52Z","symbol":"NIM0414936","token_address":"0xa5b81a9ee1f6f57c020da0b8818f2d0cfa0359eb","type":"artist","uuid":"330b31ab-f22e-4c2c-9bcc-6d097aca2bbc"}
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 0xdfbbe4a428c7539f5c7d2187bcf7bd5c6a4dcecc28bbbeb6e14d7d8a797c741a. Chain 2 (Bitcoin): anchored in block 953633 (2026-06-14T12:47:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/330b31ab-f22e-4c2c-9bcc-6d097aca2bbc.json and https://artists.proofprofile.net/proofs/artist/330b31ab-f22e-4c2c-9bcc-6d097aca2bbc.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Bardo (Soundtrack from the Netflix Film)
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 0x9e890753516bad42b715dde2f6a314ea49c3c1b5a2fe8768f7ddae13b62a6ebd. 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/QZ8BZ2203940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42d82f9654253f1b61df46845d0d843ff03cddd948d245ef7a28bacd2cf5747c. 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/QZ8BZ2203941.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf57c4d616084542eb50480aa639007af3f669a7e578d8b4d1a24cc703e3e1568. 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/QZ8BZ2203942.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb162395dbe93c87e8f4d4a9caa7b4a6bb281569d5813a7b56700e43c7e06c7bf. 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/QZ8BZ2203943.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ecd0f206f917ff11180945d8d9ea88b2eaf1d66b868f3a2f720fe9aed68baea. 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/QZ8BZ2203944.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a4973443a24b5159b6b71d52e96551f00818dab47d5b87ca1bca3d9d4345264. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/QZ8BZ2203945.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x492a0747a29b1a270188bdaef171f4a88205be4a05530b1c34d945d933d27be5. 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/QZ8BZ2203946.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4820e32e2ee6a1fe6642d16d2d9da6ad0acceeb783e66ef16ba52d9450500a1a. 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/QZ8BZ2203947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4037a321c6efec33f2817a58574b371d312bd2ac3aaf1ac8fbf4ff0a771975d. Chain 2 (Bitcoin): anchored in block 960164 (2026-07-29T23:23:05Z), 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/QZ8BZ2203948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4020a0702c6941d017f0dd842c6e762783eb5dd381092ca38d9a03c8c9dc4a8. 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/QZ8BZ2203949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0a1c08cbc3a11762bcb5b4bba5e498ecfbb91442a990af2907bd038469119e2. 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/QZ8BZ2203950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0749c29612a186fc60559d33b08a7554ae65c460a33f90d51c5c35cd003874d. 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/QZ8BZ2203951.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ca8b34035c3ec30dc05eb3c91573b50444c6ecde47e5d6f3679b3d0be412c87. Chain 2 (Bitcoin): anchored in block 957055 (2026-07-07T15:12:44Z), 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/QZ8BZ2203952.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf05995b9412e3c44e2f7798cddac33d9b9e4c8fc23fb932d1cde5f0d5b48252b. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/QZ8BZ2203953.
Silbido Arpa Jarocha / Silbido a Cappella
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccb7c638daac1ba9424709f4754e3b87b929661bc263a60fc5b5a9c183e82e96. 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/QZ8BZ2203954.