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 0xf27c8b21c29ec2877465cb517808924c8396b8d9086dc9bb31eae90f688455cf. 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/b9a07685-1538-4f36-8a40-7ad80c1fc3c0.json and https://artists.proofprofile.net/proofs/artist/b9a07685-1538-4f36-8a40-7ad80c1fc3c0.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 0xc87e382ea27e5e5ada13677857e6871629b7ba8264816d41af5c55e1cc5b2ba6. 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/QZK6L2024456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb2404261b60b4dd6ea3c0f752d038ceedbd2ddff87cd099bd8caa3621618b0f. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/QZK6H2059896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafb6ed67d96a13cd6b219c8d961386f58bd5c0cd44adb1aff74709305f29e527. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/QZK6H2059897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81697e4064f14db271311fc8867c2f843a28b18241f0e1b7eed0ec41ba6579bb. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/QZK6H2059898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03ea107ae75662b507f8cb20cccf04562db04ebf37b4726ba384324f3f099dae. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QZMEM2013993.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50bddfcff4ea37b379c4c87f1de2e7b867ce976410d095be5589cf205366d4a1. Chain 2 (Bitcoin): anchored in block 958987 (2026-07-21T09:04:56Z), 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/QZES82144526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31f99a703e6e34bbd5ebc0fc402fafc0d66a789a3b62328d06f97cae47b0ccb4. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/QZMEN2114574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed9670beece1e2f4c4d71c2f81b0af92b308606720c560014f2516837f14e939. Chain 2 (Bitcoin): anchored in block 958397 (2026-07-17T10:29:45Z), 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/QZFYX2221180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a7ae8134ba429a4f3209fad6d3f2f05fcdc6ca1c1e99510d77d7990244e970f. Chain 2 (Bitcoin): anchored in block 958554 (2026-07-18T13:17:01Z), 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/QZHN32247866.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7edb13f8fc163aa8354902218118ba41b1354ed22d18a420de82224b96cde9e4. 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/QZK6Q2205626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86d508083b2aaac6fe95d2dacca6575c4025c60fa403bb20d202fa6785e29c25. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T10:57:35Z), 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/QZTB22297768.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc83d21a6c3c85211197f9e732e6aa4c4362dc4bce2d06352010ca84e273e90ed. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZHN42324788.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f76c096ba215a15e933bbe13e5a831201400c3b0bb1116028e1658e63084e12. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/QZNWZ2391619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x324ba45c51dbdeefae49e416633cc7b24d698b5c9fde416bb22cc2dd74b89b0a. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/QZTB92307542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x911d8fbfd7ab2ffe8c3d34460ddfdc25b603367d7c7e81aaa167dc96c68f6bcc. Chain 2 (Bitcoin): anchored in block 958788 (2026-07-19T22:07:06Z), 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/QZFZ22433264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74e786a3128398385eb410717f3f5e715d123eb9438f6d34ecc4716420c3df20. 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/QZFZ22433269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x758cf82db950cce1f848147945cc45ac6a06bb37f34c44b2509a36122d84a672. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T22:26:20Z), 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/QZFZ22433271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ed9602cba3d059eea55b7a4717b40fbbb333dd51170c61afe891350e66dcd56. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/QZDA72465796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8e81d19dd81ca25952d49f15762c9c9536114c4410a6b47a91d47c94aa7a7fb. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:09:21Z), 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/QZHNB2482203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06f6bf24d1508f6b32fffbd72bb4d52523fc6a6794cc910615811c48cd0d81b7. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZFZ72587643.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8bc3f60b5650411427c408efd20e5c254cc64b3854eb1d38ec79ce56b84b6ce. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:29:34Z), 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/QZK6Q2587872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9e0c04bccfdfe34ff30a3d365ca1e04fb70ea18e1a5212aaba058b04b29b09a. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T12:04:27Z), 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/QZWFE2574128.
Moner Liser Pt. II - Nullen & Einsen Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53d7ef5ac399c08051c56b5d4f573ae9e2ab2cb144a65e1b2bf9076d08989290. 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/QZWFE2574132.
Old Schauerberg Road - Nullen & Einsen Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8c5f592ca816be5f5de597d4e0a0360d2bed9646fdc204a30a3c0db7773adc1. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/QZWFE2574134.