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 0xad0d1428bd4e2cf26886cab458cd940040713f94abf074a7f9772b530f02142c. 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/64709e56-ba7b-40f6-ac07-3e2de24a650a.json and https://artists.proofprofile.net/proofs/artist/64709e56-ba7b-40f6-ac07-3e2de24a650a.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 0xf408ad6100779c235fad4929b0d3cdc581214128239b2ae5096333e728654dc5. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/JPQ731600004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x983d3b5e37ae95b5dd2d7fb8e8fd7e98e88461b330499a871044d8b0d11d4280. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T14:57:44Z), 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/JPQ731600006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac22b4588ca1735566201dba013fcdc267afd79ad3532810a02a1e223820b2a0. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T14:14:42Z), 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/JPQ731600007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x692bfcd25e98a99a58b73fe116ef0ad32b7b960188be1cd60f626d6b5d048d3f. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T17:59:52Z), 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/JPQ731600009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf8c13faf90e0f3dc21bb3e621451d9cd5bb405396b9c468f479eb7188f58149. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/JPQ731600011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49db4ae835b916b767db1a642b77b729a36af6a4790625519ea659ef4946ac6e. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-17T04:32:38Z), 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/JPQ731600012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bcd03b05111fa0224651f8654286356085d28786fde8bfd2aebd0559b33cc54. Chain 2 (Bitcoin): anchored in block 958554 (2026-07-18T13:17:01Z), 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/TCJPF1774777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x046662c44d1bb0372c92f88eccbf6a8e5f8206ed409d1aeed09543dec109260f. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T07:42:13Z), 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/TCJPF1774778.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x268fbf6ebb0d54e4fe58ee564dbe327b369e7a94758d83168c63670ae578a0fb. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/TCJPF1774781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6114a47aa2793b07878787cba48ae362fa8f59663cd3f02706faf80289146150. 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/TCJPF1774782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cb736fab5d124bac719349cf24d742e128011c8482a863d4a4fbba173bc2451. 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/TCJPF1774780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6114a47aa2793b07878787cba48ae362fa8f59663cd3f02706faf80289146150. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/TCJPF1774782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa63190b0797e046c6c81d2bb4e4bd49e0de73fc3d806d4e9c3a3fc7703f19b06. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/TCJPF1774783.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95835bce7f41d8085415fd70538001da375350c974738c6b797f82ba719b2ab9. 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/TCJPF1774784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98ee9721c8beaa6f3b27fe400f71bbeb6462e40a9c2727d9e443ca61481826a4. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/TCJPG1739394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98ee9721c8beaa6f3b27fe400f71bbeb6462e40a9c2727d9e443ca61481826a4. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/TCJPG1739394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf61f106c5acc40e301a2d3c3abbf9d98af1a6baa59d82edd94630e33ab9a83ad. Chain 2 (Bitcoin): anchored in block 958325 (2026-07-16T23:50:32Z), 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/TCJPH1819504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9d4431f9846a07b10ef1b1c2c3773c93b08a7fc68e037be0986ab70ccc66a2f. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/TCJPH1834947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9551d7d10a1126e6aa6410a8a0208ac3e904ba66689b5ae366255d71aefbffb7. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/TCJPH1834950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb542c53b499aedc760e08af61059fbf2364db55a20bf1dfbe83fe706c2813506. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/TCJPH1834951.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17a99a99102464caa804991e3302a306e2c60b3663b79b8b5652bfb34e8e0544. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T08:57:04Z), 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/JPWP01971138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c86c2c581023ca13cfeb949cdae408de72a9737accea98175a2f79d27ea014e. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/JPWP02000444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf07ba0b247f76f2e040f7ea34cc14a50299b9aa1afbcfe10312d0eabc519a766. Chain 2 (Bitcoin): anchored in block 957638 (2026-07-12T01:56:41Z), 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/JPWP02000886.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67eb612c08572f1d80e224c3919145c6804308af658a036150ee05dc8b6f784e. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/JPWP02170584.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa60872fc5274220383d1fe9a90aa2a1cca0596cdea5e7171152f178a9c48b1ef. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/JPWP02170581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc097f5b6e49ad23b38950a4fb89a303f5124df7cd28a6138f0a1dd59abebc56. 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/JPWP02170582.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47accd65246ee992f09e18040a8c18c8fc0cec3e82c3a206826a32a3f5eded2d. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/JPWP02170585.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b6277c95a3e5b62cf96bfc704972b713a74aaa32c6f45383406953e6b1c42fb. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/JPWP02170587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe88f80c9da9ab66d4781d1517943a98dde6661267e056e73db94eed63b7bad3c. Chain 2 (Bitcoin): anchored in block 957810 (2026-07-13T05:55:46Z), 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/JPWP02200947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb966bb151dbb816464099ea0889e7255df957e8baff8f3efdaa843b6307c6547. Chain 2 (Bitcoin): anchored in block 957632 (2026-07-12T00:10:15Z), 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/JPWP02201234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa336730ec767e813e11970c6ab73b2489e1295635db14aec8c10c87a507bf5ec. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/JPWP02201235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ab5c41fa69b0cc329368a9b12e0fdea2e72fb5a3b9dc073ac2ce4b42cf11b39. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T14:45:50Z), 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/JPWP02201236.
Holding Out For A Hero (Japanese) [Tetris Motion Picture Soundtrack]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f4f4b576291a6fbef0a46325640f7767db64eda93e407f78921e4b02714a213. 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/JPU902204872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f4f4b576291a6fbef0a46325640f7767db64eda93e407f78921e4b02714a213. 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/JPU902204872.