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 0x9989017baec2af339cb7530f072fc79154fc947442b9a838409cba3fc4837940. 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/50e4467c-3adf-42eb-9c4f-9a531625e45f.json and https://artists.proofprofile.net/proofs/artist/50e4467c-3adf-42eb-9c4f-9a531625e45f.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 0x7e14e997af55fdd5f7d1028ee61217e6d8d2d0a0c0f9f45a1449fb0e2d2ab47c. 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/US83Z2352254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f99422b15e28fad075e191c415b9081f873265c58328afb8eec6bb57b7b4f00. Chain 2 (Bitcoin): anchored in block 960309 (2026-07-30T20:35:49Z), 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/US83Z2352256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a9a1592250cb97262a5ed3b55dc38a0841a2b249cd1ee8ed7cdf586d9330c2d. 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/US83Z2021453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1610e009f6929638c0ae955516bdc217605c43c91e30670578e1184b75ba582a. 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/US83Z2146156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9729161aafeea1bcec5e74cf64a55117d427b3bda4bb9716c72a98c21f7080a3. 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/US83Z2496089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x446fe6a33b2ab8b5898c04e120ed2c66f6d771af88d9ed0530b0519706c23b9e. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/DEXN82422217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43e101d93b73fe70e97da4af5caebfdb27ba5714e7a611e65cfc6bcf4768c111. 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/DEXN82422221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56265d7deb8b5f0ed8aef4bf40863435ef8cb10c0c3a922c72f58255010d6664. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/US83Z2486950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb34f2a460830537f8b785420f8fac5af94833c408dfe53ae69bf67c3f1956e23. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/US83Z2458060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5ef0586d47e20f207d1752a6abeb3da654d98492f9a995f945ea7d37876b998. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/US83Z2345797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0db9632f702c21857eac7e189ac92d45701dd3abaf635429b53c099aef81a70a. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/US83Z2335906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2f3f183cf22a5abcc1b03d647f5bd3da32ca590de734bc7b500e945210a3895. 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/US83Z2325221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c79bf80bc8963f0d77b6e6c9728b04118331cecadd10d2679ea930b3ab03810. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/US83Z2318227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78e43b11b942b44d1c68d09937cacf11aa5a681f436ec8f7992387e9bd197c8d. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/US83Z2314107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf3d6b765f8d4942a75eac00e9d7dd8f6194b1595fb767062be2b0c37d2c7795. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/US83Z2311348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefa3d746603b5e624c6ad7ede809ed6072e8ac8fe49aec8b88b9f1613b294373. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/US83Z2303326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38c3f93e037e27960c16fe91cff670746362167656b7839e3bf17358f58b95a0. 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/US83Z2303323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd758ebc5410a73a9943860494edc7078f6421f912d3cef053ddaa91004567209. 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/DEH742228146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13f5ba9fa986e936f04975d2a383a128d08526d9c80ca46adffb9d2e3581f762. Chain 2 (Bitcoin): anchored in block 960113 (2026-07-29T13:38:16Z), 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/US83Z2480504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x755d6b1392b0ecc9aa31465b97678b094540c5ddd57772afa691b14d405b4175. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/DEH742226314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf2c2888f8dc9c3890e95557dc230856abcf0a8f21a89fcae1bfddee6481f580. 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/US83Z2222895.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9324c1e4fc0a73702627d27a8c7df3ddcaea4853db17d614ab3e71561c715034. 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/DEY472275018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb62de275a42cc0dd00a92ce490cb3d81c9f5fe7ce0e148fb996a8dcc115b3116. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/DEY472275019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22f4e48ad68f0b0bac8752bd76b7ca0d42b45464e41d665c984fb6b430f6d886. 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/SEYOK2216199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9a9811aa3636c8b35d3cc1086e67968567c1f9e58920c73dfa10600765b6042. 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/SEYOK2216201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ed4e2d2f083b84139aec5713d4ea3e3a0cb0591480bff5520df706baa262890. 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/DEY472272403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe53f0b73ad154edf6e35bb1bad47ae19a6354f201e0f5f614ebaa791b5fb79eb. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/DEY472272404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96e1638eae890b58e91ba61f37da8e7dd7548c53772212bb2c6681eecdc94874. 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/DEY472272405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30029a2d0b0da2c2b52ed03098a91677c62b98718875d2c68d7ae30a99358345. 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/US83Z2213196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf2c2888f8dc9c3890e95557dc230856abcf0a8f21a89fcae1bfddee6481f580. 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/US83Z2222895.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb313e606abb31fa5dc93e5cd477ba85070d4b64b3d1896400ed06b6ec9428f48. 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/US83Z2237808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4b8252d23500bf39df50b0a18ccbd230a323bcf9db6446d49e1876cbe281923. 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/US83Z2300336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb147da024bef32150831424925e6ec46021b097bcca2a6e96b666d5b21072781. 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/US83Z2229620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab861a670264b982dbcf06eca49d5e99b2e6f1d06fdae65f878b902437d05d4b. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/US83Z2507655.
Könnt Ihr Noch? (Atric & Frida Darko Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x158b7ca111b73d2734d7a13eec5cb2060b06306fd31f22732bbd8d9a5a9da081. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/DETA82400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5ae3be6e0f1db8855c99b7eea4d237885772756ceff0fe48f25e7085adc0aff. 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/DETA82400001.