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 0xa8486abdd9902ae1e234204911cdfebbbce613c652c9ab452c93b1a6d75d9e7e. 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/14455b90-0712-48c6-8f7e-7dee6173dfb8.json and https://artists.proofprofile.net/proofs/artist/14455b90-0712-48c6-8f7e-7dee6173dfb8.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 0x75b88402e0ac9257542e8084353036b7986fa507fb80058f5a2e3b9629a84cb5. Chain 2 (Bitcoin): anchored in block 957805 (2026-07-13T04:34:37Z), 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/CZA231200632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa20fee7de0637e7438e637f637a621f8c8233bf2dbbb8b7a6cf159b099e42ec4. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/CZA231200633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3db0f4f598c43c1b323a2efdf25abf91a0438915425a0ebe2f3c7e3a7659ce9e. 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/CZA231200634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbac00f04477387f3bbd0a30b422b421e95e91233a175c4606e0a875d22f6212d. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:38:10Z), 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/CZA231200635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11b3d2e6ccc349899f73c79bacada4ae79a00cc9ab76b87171142a27c8a7255f. 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/CZA231200637.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf976f841e5fdb7bebdcf0b6d547dc1d0f81eb1abb909e851b51a45741064d1d6. 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/CZA231200639.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6c5d0be07e3048928160f49db5e10b11fdb1f47625f9f924185f5cd517f97a5. 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/CZA231200640.
Vo Svete Bohatých Ľudí (feat. Gleb & Lkama)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x426440d34d6203195858fac3b13f0738aabc230ae8eb93862212f2ab7ca750c6. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/TCABQ1375155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3ddab3c9dd0e5962b5ba69d8753c016b5075cfefa6597cea359568bd374996f. 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/SKG451300004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafed9895a19dbe7112a199295b97d7ee9540fe40f3633e2862e16997d3992d8c. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T11:41:45Z), 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/SKG451700001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcedec62a230e68ea34407dc639971c7c2a4fe00f725c6a7bda58c5e19cb742fd. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:26:44Z), 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/SKG451700002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fd9fd1336430a7f1fa3f227f33424f2f4b9885b05c0141ccb4f6142d0258864. 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/SKG451500301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x918afb10d9749deb4895cd25e4e5562f4949ff77cf60381364183b9400f39642. 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/SKG451500302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebd8929a92048eb305d71049ea69f994898fb5c4b0e563a54827c51e01959c89. 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/SKG451500303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x302391027ed87a5eaabbe782e7b485329fc27bf54ed95735fe06a7b8878d5054. 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/SKG451500304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11c7a31b88df850efaf6c78c9aa2af0cf03199bceacdeb2b350a49b7b869f632. 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/SKG451500305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57df75e3b4a7cb99d8910e8bab2a41aad692893f14fad77b687ae733a1fea7d0. 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/SKG451500306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1195f20f969ae6fd9a06f61eddaef73d77c24358d113e8e49c4f5a781a2b0aee. 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/SKG451500307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0446d0015da7c81d79926600e78559a8b9df28eb25499cdf2360b78b76e422cb. 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/SKG451500308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe829cbeea82d369dd9a9d161a3664224263011be685e6d0f045efbb30b472b4f. 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/SKG451500309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf333404e17487ea46fa483144ed4a5ce4bc940f81e600f43486aefb909f6019. 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/SKG451500310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2c1541cf582bd9064ca432325c8578236d8a84a5e7d2ab0b4f5de38ae2d3cc3. 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/SKG451500311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38e3b76df0f844574d30a03b7bd818386283595a9c048179b9fc3fb185a22809. 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/SKG451500312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1eff6f4507e83db453ad90167b25582b8de01567cd6abb47516c709482bd871. 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/SKG451500313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bf8e45996d09d4b863cc731733a159b2a7991d570e23783c0b6b101bf623215. 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/SKG451500314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52b3d89334ff18ab6f5e129dc8a4db5edcccfc2e7ceed44357eb4ee6133445eb. 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/SKG451500315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad5f1c41c8af108d9583f5cf2726e6541dc49f2b86bfb04cf808af7b9774687e. 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/SKG451500316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x006f149d638838f0cdd20f4bbb1ae35b26129139b23f5a210dc829742934d4e6. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:39:46Z), 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/TCAFH2041947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x704267b891071f880177d72b0cb9e10b6e3f2c928005ca8410a94dd814f1e03c. 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/SKG451500201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a0856f57296e050cf12242b4f7bb233b3bd140298cbe6cc51ab31376a940152. 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/SKG451500202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ec62ac0a1496555606140e2b496a87f24cdef0e2417e138fc83495d328bfe84. 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/SKG451500203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4704ec6ba384763310d0f1efacf8f8dbfac9fa11f5858b4ef19603c6c608ad07. 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/SKG451500204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29eddaf869915237d30292ce10b9de9d94d9c2cb10a0566c74fb9ef1c39fe612. 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/SKG451500205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1083a9d3cde8f577926f4f3bf2f775367ac32a7f119b0854aef32fa9acd4ede4. 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/SKG451500206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b566475113b2583997a11f8e5f9f82b56db5909e1aeabb6e96fa9f2c88b551f. 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/SKG451500207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0877b8581524989ba93b11e6f3cba8ccca93103e0b8376f2721af6208d068065. 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/SKG451500208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92f4fdb1951d9e483d27bd35c959bb821b6f48b3a2c7f355b3d52ea9205940d3. 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/SKG451500209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x957d5792c7a0914e962442542ad5d59475b5a3644fea6e8936b342429fa7e2fd. 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/SKG451500210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa35a9a4abb503b390379458b05a70633f4ef3a80683b77e6af4e378574386947. 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/SKG451500211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6b1575332a4b8948f35158af48e813f665a7517deaecacdb30d022af84fe811. 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/SKG451500212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c2735b73d0d3ef5e41b3512db9d3de9f1357584e0b77f7cbfd34321a8e2f3df. 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/SKG451500213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1efcd6dc0e382af5e128d1ea0cb75c7295d12c6d9e773fe7c00e3534365f792. 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/SKG451500214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9c61ba9e52acc63fe32e5bdfede67bf28a53e2d4e84982194e07fb461d57ec5. 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/SKG451500215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fe164734453f331336bd6880c3ac360777bd843dd754034fe43d0dd1bd6e57d. 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/CZH112100054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x602c0eed37c5dc624589db3e57c1a40c2fd48df034dea8d928435e160f4ea5ce. 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/CZA232001330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe341d1c0fac3c2fbe64d5dbf93f6ae0bb6c5357e6ce1efec60985716ccc25065. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/USDHM2310264.
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