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 0xe7a11b7d961dfc5d9f6c867472b9dbbfe3cc695cc099274994c4e9408a9dffde. 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/6a7ff08c-2f43-47de-b077-a905c851c0e6.json and https://artists.proofprofile.net/proofs/artist/6a7ff08c-2f43-47de-b077-a905c851c0e6.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 0x8dd161a67e6105859bf9356979da9c65a4afe9719be02b7e2c124e320c066fa4. 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/USX9P0962585.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e6278b8063e8110ffafb50e015921cdceac81b50e31faa94584e1c18ce12bb7. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-15T23:25:50Z), 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/USX9P0962590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8b248ae5054a36cbbabe8389c4fce8eee087cbde881afc593998bddc7f39095. 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/USHM22086986.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf14b52de97d8802ebb7e9aefbb522b97a3a25517d7b48c712d6ed40dfed75726. 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/USHM22086987.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe27d7bc614ff4aa65c4d590df97e1aece9f1d7c58874497e71ddb85851962c67. 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/USHM22086990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ede59ed15d6aa75ec65f5a5e98244d70eb08c9e368c907b559cee4df8b2e594. 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/USHM22086992.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bac574330954d148094c06e2b8c71e665c4e83af0d362332685fbad86503040. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/USHM22086995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3dbcff0d040859423fc2651ab067b89ded40c0ce3bd9cc4e95b72c5ca76718d. 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/USHM22086996.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3bfa7c971abc299751061ba16db7e8d14f93bec97926eea4b5a8eb702c44dbb. 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/USHM22086998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x244731ef657e7c7e6bfcddf53f49175010b13fd0e3586ad935d0107e6c14a90e. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:04:54Z), 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/USHM22086988.
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 0x57820f1415c8aaf7355027c3476c4257d090a742e10c354b98f71610df3e6e88. 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/USHM22086989.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67d757e31a8d1c6dde580e20517633d5dcea7318fdeae116648d3a354b6a445c. 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/USHM22086991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ead845c89ca1f3f63494fe12806a8b14e570112cff87fcd01075f3fdad709d5. 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/USHM22086993.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab68b67291e60d5dc1eea362e5bcee11a019c30349ce837962c61880f0490598. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/USHM22086997.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8100284bcd16ac82d4c3312830b6c28fa78aa4f8917dd9686e6ca61997c67c4. 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/USHM22086999.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x357071c36f4b0aac9e3066a241fe3f0437fe6c1010fdbbfa86e88668b2080b69. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/USHM22087000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaad7ac524cb5184bec6a64e7caa7225f382ffef4bbf1eb0241e92d268042fbfb. Chain 2 (Bitcoin): anchored in block 958889 (2026-07-20T16:07:08Z), 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/USHM22287789.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73be065f10fb0e81c933f579a16283d4d1decd5fef796634ec5869f61b8d8f3b. 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/USHM22287790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x666a6dcd0691344cf4b807a60b2368feb3399d64dfe16a768af62017b006910a. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/USHM22287791.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6314dc0b194a22f7cdf5bf47dc443a26d3d12a6fe8a3c5f6344e84d16aff32ec. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T14:10:30Z), 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/USHM22287797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43103f0b7757bf06a2677095bf7e57cb627e9e8028a6a703a6b2c36752330f7b. 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/USHM81686422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8773bcff128a6cce4890a7b947aaeb78e2c740ca55c31d7f957bdd8614078616. 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/USHM81686428.
Dark Half Presents Damien Quinn: Disorder
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x338c5b4a45cce9728914a31b62ee4d20c16f6ccf4038835206a04dd66136f9b9. 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/USHM81909878.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4fb896637677dd070e245af7e81e90f7923780eeeedc6a68a4f1e479a56046a. 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/USCGJ1571704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57e14e891297ac4fcbfff4a05f0e61aeb2ff507530037f0aed4322d4a4a4c547. 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/USHM81878486.
The Neverending Gory (Slash:1 - The Nothing)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bb99944490e0d11035a731c1cc677bd18635e629ec07a603a8e37b55b8bd7b4. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/USL4R2400792.
Last Call (The Last Days of Pompeii Remix)
Chapterz: The Lost Pages of Eibon (Rare Sessions from the Witchez Den) [10th Anniversary Edition]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8194c65f1eda2b58d4459dc3cd7c2a2c18c5dfe304c6f501d826dc32f5261853. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/USL4Q2061828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22c481145037d58db36a1485c69232b18fe91b25141828d7f9b8b5667b4bb70d. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/USX9P2085551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ef23a986661b2ea62a5fd544134f316ef0eb8e8a990ad273db81d79d6abfe28. Chain 2 (Bitcoin): anchored in block 960362 (2026-07-31T06:58:00Z), 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/USHM82071413.