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 0x870f7c4f8feec0d4be0a7397378f16fa85dd90a611b07e26e2e210629c0176a7. 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/cee910c4-253e-4783-b113-090c8513f2f2.json and https://artists.proofprofile.net/proofs/artist/cee910c4-253e-4783-b113-090c8513f2f2.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 0xd279566ddc97bf563b157b72a8563f68558775ad8f506b2598b4ee718a6ceb4d. Chain 2 (Bitcoin): anchored in block 958473 (2026-07-18T00:52:36Z), 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/DEUU41900886.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22070f391995a3225865e30aadf9f158153ce89cff8f6262bef76ba80fee889c. 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/DEUU41900887.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c1874ef539a8ecd13cbbb5c9f2f072a723bfdd1d822e39232738b1ed60f1797. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T07:08:48Z), 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/NL4NL2006528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0a4371a9836222c000a4a789b0fd810a16f1cfbdc1a214143c4dbb946361ad6. Chain 2 (Bitcoin): anchored in block 957892 (2026-07-13T18:21:16Z), 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/DERD72100067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2459f99749f6a4d5fd3d95287a22d366bd98cfe18e980915657a7ed40b12468a. 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/DERD72100068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9450bad8b0678710738280468934e86bcd967af255c14d6600ad11934369bf3. 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/DERD72100070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65d59ccfcd2f87c74ec28cccc7419e2adcd1afa94e384b1ffe8717192b6f79d3. 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/DERD72100072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x893ad3cff61b8efb8c0bcac7a9776da8b15a2ceeb2f84f9c04a0e26714f69c58. 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/DERD72100073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0fd5e6bc6a44ddd95143782ab6048fc8478371ebfa4063685da0c3e3af8eb48. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:49:52Z), 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/DERD72100074.
Urlaub auf meinem Balkon (Trötenversion)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaeb43b3ebb87f2331a29e5e140a162885919d95c8fb50e272c4758dec21748f9. Chain 2 (Bitcoin): anchored in block 958660 (2026-07-19T04:21:53Z), 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/DERD72200096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bb586a294d442d7b4682b2832386d1787fd07a7ff0f2bc9108bc5d0f0415b45. 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/DERD72300047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x138577cd238eb3d2ad499c93f702848a061f6e58aaab08792bcbbbd8b830e26d. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T20:44:38Z), 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/DERD72300040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17ad5f20d1ffba24c6f6330bc7ff4ed127040f00a219779ef961559165bb1b06. 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/DERD72300038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x258b16cef85c1b3fc3e3b6b757b5228faf626c961c0cc445b449fede10e3a3e9. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:58:45Z), 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/DERD72300039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1eb3f6622180f0b60f811900e8597984876b13dc1e646c82be837c2668663eb1. 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/DERD72300041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x522e14e8b765daf25881ba4d1c445131c7c9c2657073584f32b01e5370ff3a48. Chain 2 (Bitcoin): anchored in block 957919 (2026-07-13T23:58:45Z), 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/DERD72300045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2db982412aedacef10580f0b46aed950eb59bc076269af1b967408e516f38bff. Chain 2 (Bitcoin): anchored in block 956405 (2026-07-02T22:22:35Z), 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/DERD72300046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd02f62fd776756e4ad9cbd484e43480d384dca70d5cdaca167c862945095e9be. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/DERD72300048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35bf4595594ba2ae553aff2767e07e821d3f1b96ef40b2d57f397e1e5f7d5fe8. 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/DERD72300049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7c39efd22f055beff752a982a39960d8322f23f8cb35ddb3b8cfb6c11e69c24. Chain 2 (Bitcoin): anchored in block 958251 (2026-07-16T06:29:25Z), 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/DERD72300050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34e62b3634258daab7305fb367e669a8905882d8c59f4a33c34c173d1276ac28. 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/DERD72300051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d71de8c824fb7f71486f762ef0be7b5b992213a3a1ded7cb4cf201cb4d2e1b8. 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/DERD72400032.
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