Ren or REN may refer to: People Ren Gill, or Ren, Welsh musician Ren (South Korean singer), member of South Korean boy band NU'EST Renforshort, Canadian singer formerly known as Ren MC Ren, rap
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 0xad0d1428bd4e2cf26886cab458cd940040713f94abf074a7f9772b530f02142c. 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/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 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 0xf408ad6100779c235fad4929b0d3cdc581214128239b2ae5096333e728654dc5. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/JPQ731600004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x983d3b5e37ae95b5dd2d7fb8e8fd7e98e88461b330499a871044d8b0d11d4280. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T12:03:04Z), 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/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 956474 (2026-07-03T08:56:35Z), 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/JPQ731600011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49db4ae835b916b767db1a642b77b729a36af6a4790625519ea659ef4946ac6e. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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 958552 (2026-07-18T13:15:29Z), 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 958242 (2026-07-16T05:02:52Z), 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/TCJPF1774778.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d1f012d48f8771914998d492ee8a72f8d894ead17ebd8de9c2956e32f3b82bb. Chain 2 (Bitcoin): anchored in block 959076 (2026-07-21T23:41:40Z), 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/TCJPF1774779.
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 956822 (2026-07-05T18:48:28Z), 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 956482 (2026-07-03T10:33:57Z), 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/TCJPF1774782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa63190b0797e046c6c81d2bb4e4bd49e0de73fc3d806d4e9c3a3fc7703f19b06. 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/TCJPF1774783.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95835bce7f41d8085415fd70538001da375350c974738c6b797f82ba719b2ab9. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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 0x00bdfed3dce16b7ed3481bde9d18ec176695a276cf30e51c06b1b58680e1b113. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), 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/TCJPF1774785.
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 956634 (2026-07-04T10:04:33Z), 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 956725 (2026-07-05T01:12:41Z), 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/TCJPH1834950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb542c53b499aedc760e08af61059fbf2364db55a20bf1dfbe83fe706c2813506. Chain 2 (Bitcoin): anchored in block 958104 (2026-07-15T05:34:05Z), 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/TCJPH1834951.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17a99a99102464caa804991e3302a306e2c60b3663b79b8b5652bfb34e8e0544. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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 0x17a99a99102464caa804991e3302a306e2c60b3663b79b8b5652bfb34e8e0544. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T06:12:52Z), 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/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 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/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 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/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 957796 (2026-07-13T03:24:42Z), 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/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 956634 (2026-07-04T10:04:33Z), 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 958153 (2026-07-15T12:03:04Z), 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/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.