Us the Duo was an American folk pop duo consisting of ex husband-and-wife Michael Alvarado and Carissa Rae Martin. The duo met in Los Angeles, California, United States, in 2011 on the set of an AJ Ra
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 0xcc8337c81d59faf0b0f02e82be7c1e957f5063967bb685c93ea17710decb560c. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/305d8c9e-a8eb-4774-af27-8466dd97418c.json and https://artists.proofprofile.net/proofs/artist/305d8c9e-a8eb-4774-af27-8466dd97418c.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 0xfffb2bab01691a7452990519ab79e526811bc935b815b290ec6d5a2fd54507d6. Chain 2 (Bitcoin): anchored in block 958410 (2026-07-17T12:18:07Z), 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/USUM71405826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77998b432ec190fe44e998c7169ae91c2c913a74499d202464314bfadb2965de. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-17T00:00:47Z), 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/USUM71405827.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedc31ba0d2cebee5fcc632f616b8781a5a064a0e7ba6ea3733a90b985f2ba8b0. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/USUM71405828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc657651d8438e2b47f013b2107dc588ac0752723765d2cee00d79259b964ab65. Chain 2 (Bitcoin): anchored in block 958346 (2026-07-17T04:18:32Z), 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/USUM71405832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15418207bf3d46175623dc3d98840926e8dcd2e3fe632109f16562d445167102. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/USUM71405820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe244e24b94a02a0a32c28a444d593a1f89d60152d1253dac30e43998b0805e99. 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/USUM71405855.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f24a309ae069116b179f678f3117f47354b6c55abc222e5627de93cd6b13414. 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/USUM71405873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ec0fe51c39275c3177c285cdecd01d700b84860ed39fbf79967265019dbb267. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/USUM71405874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe52ea3ddef6a920e2a79ef25a079ca672022caae0b7f94a2c7107eaceaf14a82. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T18:55:58Z), 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/USUM71405875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d56e02529f6e209d60efa62d6936d78b2162bb496f499918fe1a767a349583e. 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/USUM71405880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd92439c1d477ae666ba413c9586624ca12de874f75760295c8fdbae60a335d5c. 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/USUM71413976.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77cc88aef7a1a9a305cbb77d971b1d2e06b1d958334b2bb54ab6cb99c8ccca6c. 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/QZ2Q81600003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb392da09d70499c6c96ebc61e424e62960344948816ad0f7ae930d0a1ee60c41. 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/QZ2Q81600004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d476dd878b22143755efd1d32601d2f506a6cdb92c59159c2f6a50cb607e8f1. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/QZ2Q81600005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5563c52306a3c28ae0c23c12af7ca2c468b80c1f8201bb11c7f9482b103f0b1f. 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/QZ2Q81600007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf981a91c3bf748627ab6017db9345f72f1ee96ce45b204de2e37d6af4d7257c. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T02:47:16Z), 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/QZ2Q81600009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e14bf9128e861c4b67125f5a49f99cd652a07e4b4be20cefac731efe136653a. 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/GBKPL1811844.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95c4e04e1291decf5496b7b03b5ede7fe59f153af72c19a45e2b0cd156d3dc76. 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/GBKPL1811845.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x193b0b21c02304674b18a52f47c9cb618b8c55af99163c5540a94ad79f3aee7b. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/GBKPL1959671.
Our Favorite Time of Year (Deluxe Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bac36f95ffec43ad6f45aaa85228fc7ee2582145fb6a22c467a1c744c983f27. 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/QZ2Q81700011.
No Matter Where You Are (Wedding Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9863f5d3b75c04abf5e91ac75d89bb25f92e03674024249df5b6c813066d459a. 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/GBKPL2004454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0d3e45eda3cf83b968fa50c2ddfed0e60110b146783d28ae5fffe37e8801b7e. Chain 2 (Bitcoin): anchored in block 958611 (2026-07-18T21:24:44Z), 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/GBKPL2009641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x217442c87b8665c2b30c90c7c264edeef5c807d02bffb3b73d8c029c808e5df4. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/GBKPL2014671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f90b98a230558d51ca1c4827e86d32c425f4c82c0a89b374f4e6457e014c658. Chain 2 (Bitcoin): anchored in block 957867 (2026-07-13T14:55:20Z), 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/GBKPL2014674.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd3738a43441f853aa887c7af76961c342010685989b9931c2fc417f0f823577. 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/GBKPL2145473.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d329dce770e1e39595653815208ed97a37b75385dcead10f991b8ca9aae8027. 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/GBKPL2138921.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa715cb13da4601f41e0127c9d66db2ac36f6a97ecece1b6272d0e5679efb2936. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/GBKPL2142449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd28af31ab3a1c5440bc1c0b2f0e09baab0fb00da58445d38edfabb00baaa4894. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T09:16:54Z), 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/GBKPL2144820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e2bde7325569244aad18d2bd4efa27f77b9dfb98bb7a0f53980549de195dc14. 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/GBKPL2140812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x911933467229863d3e8b3ece6c54357d57043274ce5414a9f6be32fd45e1de2f. Chain 2 (Bitcoin): anchored in block 958346 (2026-07-17T04:18:22Z), 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/GBKPL2144061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa09dfa0d880938ba12fd52dbc87ee59a42b99c0dfe4911f5ef1fd2a09e06b3b. Chain 2 (Bitcoin): anchored in block 958404 (2026-07-17T11:34:58Z), 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/GBKPL2159114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdaa84dc5fbfe91b2bb4bae0e292e84df57ab5e8265ac7121bae3e876c2c077b1. 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/GBKPL2294820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2a63a674dfbb198dda0e724c36031a8e838f909198d10dfebdbbdb09290f5e5. 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/GBKPL2205779.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30272240d03410a5655532befc03aa539043c58fb7d525cacf99ecb0df9ad3c6. 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/GBKPL2205780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6289dde543b9305b13516b57983c1670a04f8e1d319791ec8314346b41cdd52. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T00:20:57Z), 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/GBKPL2211325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24a7ffeb0f3b8e633248c571b2e79176c8bd632bf5911735ca415c943ad6db53. Chain 2 (Bitcoin): anchored in block 958501 (2026-07-18T05:33:04Z), 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/GBKPL2211631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x286790c2e52451ce4dc186b7f207b6dc73375b5da3e0b18b8d1bf42ea74e62a9. Chain 2 (Bitcoin): anchored in block 958691 (2026-07-19T07:19:31Z), 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/QMDA62265377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0736ba1d4bb1b0129c75bcddfe5fb04be108fc80aa18593f8c39fb72bdfa925. 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/QM6P42371375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8397bd29669e5d91a770db66dbddd8494a03ee5a13a35fa96ff1e71b27ff6ac3. 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/QM6P42371376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac1913a7e805b0631c3329d8e2682da53d6c7d04fbe7aaff5f51c40d105d04f1. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/QM6MZ2499490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd92439c1d477ae666ba413c9586624ca12de874f75760295c8fdbae60a335d5c. 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/USUM71413976.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e8d85169597bb0272511038208868d9405425b54490320f324f863cc91ab868. 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/USUM71505454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e8d85169597bb0272511038208868d9405425b54490320f324f863cc91ab868. 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/USUM71505454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e8d85169597bb0272511038208868d9405425b54490320f324f863cc91ab868. 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/USUM71505454.
Akustisk Hygge 2020 - Stille og Rolig Musik
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e8d85169597bb0272511038208868d9405425b54490320f324f863cc91ab868. 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/USUM71505454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e8d85169597bb0272511038208868d9405425b54490320f324f863cc91ab868. 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/USUM71505454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd92439c1d477ae666ba413c9586624ca12de874f75760295c8fdbae60a335d5c. 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/USUM71413976.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x620c6700c98bdd851e4e8bbbde4df99d80ae96f2d7a5bdddf66b7e2b3b1f380b. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/USUM71405831.
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