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 0xd50bbc2b6031fe400bdd619a671b57db62175c4ae63db09175c54bcb9c27acec. Chain 2 (Bitcoin): anchored in block 953648 (2026-06-14T15:20:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/36b3084c-7f6d-414c-a275-888139a8ef19.json and https://artists.proofprofile.net/proofs/artist/36b3084c-7f6d-414c-a275-888139a8ef19.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Mysterious Voyages - A Tribute To Weather Report
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 0x8ea4c1c1b3e8b3fb56ac4933e92f329a50f952517f4b77f129bb54c2e9471972. 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/USSM16301053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9c0301cc861dc2aeef9a1cdfc45faa304033e894e06116fa3cd9fcdd49e850d. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USSM10502576.
The Ecstasy of Gold from The Good, The Bad and The Ugly
Coro dell'Accademia Nazionale Di Santa Cecilia
Orchestra dell'Accademia Nazionale di Santa Cecilia
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b19f72e77c0fa01428c14b9b3d09ae91137265377c9de361e0c79c87d98f829. Chain 2 (Bitcoin): anchored in block 957032 (2026-07-07T11:43:09Z), 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/USSM10502628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7521027af3a0d74029121d9cac3552ee948b8c173f0acf67e1b8ebbe151356b. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USCA20602065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50a4d10d593844fd8fc384e88764754fb9bda8742a8109cf1d6b1ef5bf7da682. 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/USQX90800446.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25479c31975752a72163761941a6594b6407ca5cc5c1ab6cbd852db2dafa041d. 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/GBAAA9710480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f8c9f7dafd7e34ddaa94600c8d578727d59a42f7366de05f71ce867c865f053. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USSM10000704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e96d609e3cb14eeb1371df8ec5b8a73b7066fd63659015d2fe72d6fd8f26f2f. 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/USSM19919146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe90d1565eb5c568805e0236563869d9a87dde03fb1ef50577c401981b5bacba. 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/USSM17400043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf49d8f9279832fc0bbb2ffa4df86f1eb1d964680d98165e4d3cd93a2a5cd9cc9. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USSM10000007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cd47662e85463ddf5ce1e50051ddd2d6b3dff02949a0252defca599716755d0. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USSM19602685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92b81c628a5086c475e7bffc0b68e046dc4bbcde7134744ea6ace3abec35d5ad. 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/USSM16800876.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbda00f2b4f295b71efb52cc42b91616a0c6d7fd1e3651873e3c42292ec671bcd. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/USSM10009992.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5930d830d3da761b3315f5ac807dfc160001c20bab01a73200286ff05de3886f. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USSM16400801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe9b0b6a5b81b3bbeb0a9b1b6f025a1287b0af61b35aa79403a957f1b1c29b07. 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/USSM19909181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd6e1f570ca3a1860f110536bb8275ec75e6df8fc07fa7cd3cb62dbafb83737c. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USSM13900056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5842d8d4d04b5324565be4c1cb48e405d6115ff18ce87bd903f8ed4dda45cae4. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USSM10017012.
Cinema Concert: Ennio Morricone at Santa Cecilia
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf49d8f9279832fc0bbb2ffa4df86f1eb1d964680d98165e4d3cd93a2a5cd9cc9. 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/USSM10000007.
Investigation of a Citizen Above Suspicion
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9437f5ba7d66f94f6a35080911d455340e85c7d8e46483b347c1b42c14c4c5fe. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/USSM10000016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5c1f2e4b5b5cfa761973d4f3d27e2cc97943db6194516e1cf67008419e27533. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USSM10000004.
The Good, The Bad and The Ugly Main Theme
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6492bf7a6f32cfeed644edada7bd077fe9105874ae45974c488eefe81afcd75b. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USSM10000010.
Jill's Theme (From "Once Upon a Time in the West")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x206c4619ca2afc478552169ca2efd89d5e52f8ffe3bf2291b5994832cfcebe18. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USSM10000011.
The Ecstasy of Gold (From "The Good, the Bad and the Ugly")
Coro dell'Accademia Nazionale di Sante Cecilia
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1191736fcb126961670ddcea62f5af7aaf9affbac703c7aee26de8226f8d4b9e. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USSM10000013.
Coro giovanile dell'Accademia Nazionale di Santa Cecilia
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0c93bdb6c6cae6d6c98157802a6f65e3c58dfe699f47e88a024206e6bc9fd4a. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/USSM10000021.
Cinema Concerto - Ennio Morricone a Sante Cecilia
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5c1f2e4b5b5cfa761973d4f3d27e2cc97943db6194516e1cf67008419e27533. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/USSM10000004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf49d8f9279832fc0bbb2ffa4df86f1eb1d964680d98165e4d3cd93a2a5cd9cc9. 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/USSM10000007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x206c4619ca2afc478552169ca2efd89d5e52f8ffe3bf2291b5994832cfcebe18. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USSM10000011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0c93bdb6c6cae6d6c98157802a6f65e3c58dfe699f47e88a024206e6bc9fd4a. 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/USSM10000021.
Ennio Morricone conducts Morricone - His Greatest Hits
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf49d8f9279832fc0bbb2ffa4df86f1eb1d964680d98165e4d3cd93a2a5cd9cc9. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USSM10000007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9437f5ba7d66f94f6a35080911d455340e85c7d8e46483b347c1b42c14c4c5fe. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USSM10000016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5c1f2e4b5b5cfa761973d4f3d27e2cc97943db6194516e1cf67008419e27533. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/USSM10000004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x206c4619ca2afc478552169ca2efd89d5e52f8ffe3bf2291b5994832cfcebe18. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USSM10000011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1191736fcb126961670ddcea62f5af7aaf9affbac703c7aee26de8226f8d4b9e. 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/USSM10000013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0c93bdb6c6cae6d6c98157802a6f65e3c58dfe699f47e88a024206e6bc9fd4a. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USSM10000021.
20th Century-Fox Fanfare with the CinemaScope Extension and Street Scene
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fd7e8d3de0d49a492ff3674156366fec7552ddee536bcfa6bb21b5fe7aa6e75. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/USBC17300416.
Main Titles and Calvera's Visit (From "The Magnificient Seven")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87325731f427b207100419dd3a430fd82835d578de5dc5676cf34d59c218d47c. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USBC19710369.
Kings Row; Main Title (From "Kings Row")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1718d0453de4c1fb1e1f8f197b58e7afd7d460b9f637696dabb8a8f3c57732d3. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USBC19101093.
Play it Again - The Classic Sound of Hollywood