thumb | right | Nils Poppe Blåjackor Nils is a Scandinavian given name, a chiefly Norwegian, Danish, Swedish and Latvian variant of Niels, cognate to Nicholas. People and animals with the given name
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 0x5eb20ccf0df6c46365b649d8da9811098e220f2e47c95301ee74207ff25ce7f1. 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/ebe42d96-71e2-43bf-bf26-b1f3aefd4b40.json and https://artists.proofprofile.net/proofs/artist/ebe42d96-71e2-43bf-bf26-b1f3aefd4b40.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 0x31281a618e2339899196dc95c91fe1ffd30be868f113895abe3a12ec8549d5df. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/US83Y0552527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe829cd25fe4f1e74c827a9ef26a1ada69be430c4df0fb622cd9b32bdb1e956e7. 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/US83Y0552529.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd98ea9021d208faa5f5d32afd147b8a5c76d0a1e7b66d15e6c36a55515a58474. 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/US83Y0552535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b6d46e75cb635259e5bc92fbc5bae23ea050aae9bb66efd664d142be4921f34. 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/US83Y0552537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ed5672b5ae339c5b1877f79a93a1255d5ea92f78d112381891120643dbfd02a. Chain 2 (Bitcoin): anchored in block 958965 (2026-07-21T04:29:05Z), 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/US83Y0652653.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x542691d4bc961e6bafd2b65d2803e62ccb5f3f8e71e1bdc3bf3d15e391c99da5. 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/US83Y0652659.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70a872fe1aa826ac1128355f99924961dccdeefb75ca0e4a1984b6cf0d02126a. 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/US83Y0652663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x413eede7ca9c15f577a0d0735246f6df4c5123be080d5f46fded737584b9b9dc. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T09:54:29Z), 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/US83Y0652664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbeadca92cbeccd7e9400ea49cd4214475446eb4596a7b58a5f9b8a69f7b89223. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T21:06:40Z), 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/US83Y0952740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bb3cf00a935a7496f038b9618688a20bb84b098498c36133ac4b0c7cb93c3d6. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T02:31:22Z), 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/US83Y0952741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54951409468e90cea0299f56c086d5c7d132a4a9f5b0f094d1b29cfebb833341. 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/US83Y0952743.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2ba0fa673d0ca2a07a3b2ced591f87f475c4bfcbc9623d632c6aa1948fe0bc0. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T17:54:38Z), 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/US83Y0952746.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6446af0fe5540c12513c24e4252831b5862c90ccc7e9591063aa07b1549cf005. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/US83Y0952750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2229968273c32899df51f59c234b99288fd459e219ef49d2bebd7aaf6cf56b70. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/US83Y1052779.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22745f2c9d3679a6fe51d0e98f2015f04d1d1ef94cef3b801fd1164d293a13a0. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-17T04:14:42Z), 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/US83Y1052781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcae3360dd639bd582d39da4a6e93f6acec7aa30ca07e81ad452b193e14ff3d31. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T19:56:00Z), 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/US83Y1052784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f68827801be9448024ff9f736f6a785e6dfd38d6241d7bcf28c3ef08f776d3c. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T10:52:45Z), 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/US83Y1052789.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47049c807e405178322f3b757a9c8a8fc79900932091211dd4b6e87ac737a72d. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T03:57:45Z), 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/US83Y1252795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bab59d7374f3d0beb6ce549cb6db97b67145cfba8badfc6ed08043124075665. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/US83Y1252797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x822e2ec6c0d4109991937736122f904db7e2a8cd9c2721c0595a717c80caa22b. 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/US83Y1252798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8be483c778cbd307decce27c94f41dce68893a7aeeec7113e873f22b6fcc7b81. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T16:21:50Z), 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/US83Y1252799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb46591c4061acec5aaf970ff66f82573a2cabc5217d976f13ba703e41380382d. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/US83Y1252800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ad53f6e8b02abc4839fbe41461938e4478c767cce512431887c507750245c3e. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/US83Y1252801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeba276d52776cec32bac10c55c5dc387a1a09be40beab063223186e6e6211f38. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/US83Y1452820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8fe7d1146a2b7377317b97615f95ef8aa09e458e4774318e0b6e96f96f22793. 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/US83Y1452834.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8af751be63909c632c80cd06b89ad1881af5ef76b081708189847691e8d6e097. 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/US83Y1558247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a45712efb1c9a78e150be14d1454abf7276ffd2eab8afd34e65144cbc7be112. Chain 2 (Bitcoin): anchored in block 959089 (2026-07-22T02:17:57Z), 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/US83Y1558248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf00c754c21e054ce658f69280c0662b4fed9562d8ef44d6cd1a2c1591212f330. 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/US83Y1558249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcd8617436ead86e2a4f1dd83a5be29998fe656db2ab673c81b93f871c837141. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/US83Y1558251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47773a85fabaa516d776e5b0b9b7948ad1afa175dc0b0715443a856fef2dce0b. 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/US83Y1558252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0831b2de6ab8b4af07014631a74986ee81a924c453c0e12f35219cae1d04e267. 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/US83Y1858272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51f7d58ad4a9f17b08da2d1c71648aab1bb8d3c2d726d11f6b6a9cafd806517f. 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/US83Y1858274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75cae3fc2681d18607b0d91c97fa8918f9960f6298db6f6008eab7fb416e1896. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T20:12:32Z), 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/US83Y1858277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9b3f991b0c43b8c60a8211e4855fdd1e4e175155d5a6fb9c46a9e69047c6ed2. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-20T00:19:22Z), 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/US83Y2058308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3dd38d71c17f3ec1ee5e7317fde826dd683f1ebab400d582bd96d68e34da37b. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/US83Y2058309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cd408ee0f51ca3ef12b08f01e6e75a6138cb40efcacd89b2e1c6cc2c33d6ea6. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/US83Y2058310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0984c626a932f99e69b663c124370a620ce42e78f9bb12ee9046045428ea4964. Chain 2 (Bitcoin): anchored in block 959096 (2026-07-22T03:48:36Z), 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/US83Y2058314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x155da782aed53be5700388c55aee4d55ae88e01af619e56f29bf711beb262282. 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/US83Y2258345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1ce0872ae1e78e05d659f090400053efc0b60e6d07980897036d92e13e4d9e7. Chain 2 (Bitcoin): anchored in block 959084 (2026-07-22T00:50:00Z), 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/US83Y2258351.
That's The Way Of The World (Radio Edit)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67ddee6fd4841b6173c8a6cd06f369b047686182d026e4e81dadc8aa030d6234. Chain 2 (Bitcoin): anchored in block 958722 (2026-07-19T11:03:50Z), 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/US83Y2458362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc062885a7c5e59c84239944112ddbe0d44acf910f6f9c25f006331f9d8f361b7. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T17:59:23Z), 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/US83Y2458370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7fe7113d5eaf9f92c2a721eb60cb1efa4d6b92a7c873f00d1fe31d128d6e6cc. 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/US83Y2458372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4497a5f887b5364e8809745c9cf7007afeb4d69942da5289f3bf380787212c19. 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/TCAJQ2536092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb18c14e269c01ba7c4f6721900b2e9c4c3e218e33c058930246dfb772e634505. 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/QMV6Y2000002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde5660b49917fbe83d1cfbd9302118246092b592ed4cf59b31edf980c401175b. 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/QMV6Y2000001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeafb68ed84e5b223456f159f00fc78818d80d9e897331590f60c4bb9b94b677a. 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/QZ2B21600001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e6b52172288e2c5f15c8e704acfa01e52ae07611502c75bf52acc025d297a2a. 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/QZ2B21600002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x542097dbb246f21e666440fb67a7dd6ca84dbe50e27d773f955332650e2ec97c. 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/QZ2B21600004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b82c11453d04e976d532406b191d98966a3d6e0db50cb7bb2fd33057f17e674. 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/QZ2B21600009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff6bf31af8b76e987cb431cad8831a3d43963cf0ff35a0264f3c3e647a02e87d. 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/QZ2B21600007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x754fe56b111036638e29e3509135be847b60fc98e18211d03211e07f25b1c08a. 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/QZ2B21600005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa62d9e51bb3d41de592e32698a83c016721e3efde00b2f6a96c695986566e7b4. 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/QM6P41468572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72023e6860cf13dacb5483f3ee240983b241cdcec60e72f37ce21ddb2616f7bb. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/USNDY2332860.
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 0x095d381de63993deab84e33ccd9e0b392adfb0cc0b06c5b24734faacdd78b547. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/QZ2B21600003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa326f6d35622f8198bd58c27eccf1039ff311ef91a012c810d8c5f48d8e64849. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/QZ2B21600008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf969368328b13f8b138f74cb36fd72de58113d247400c9751de63a7e9eabb177. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/QZ2B21600011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18017c90bd8f6af80ccb51bb2f01382c6cb735907a28b14f28ea1ee6102a6fb1. Chain 2 (Bitcoin): anchored in block 960509 (2026-08-01T04:30:37Z), 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/UST2Y2100369.