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 0x2bfa1d7e8d4837254bd8b194eb6dcd5c4491de5e71fde1480fa62baca0ab8cb2. 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/eeb259ee-8094-4b75-8776-80180050aaa2.json and https://artists.proofprofile.net/proofs/artist/eeb259ee-8094-4b75-8776-80180050aaa2.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 0x9bec1106acd596b4198c9d8804cd55c9e436f3a7a79bbfa0df13c3b09d37492e. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/FI3EF1200205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0d0594e8a351aaab3531b56463aa6a39f473ecf9f3fd74e954f677e9cd25b03. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T11:01:14Z), 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/FI3EF1200206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94a61bcabe22cd6e87b543512408959cdcd7d4c262c11c5e98b7bfe39a1cfe3e. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/FI3EF1200208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e852d84d42f3363325396353956da6bdbb3ad1ad555317a23b0a7acb7377b23. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T08:33:47Z), 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/QZ4JJ1863087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0b1a4d554f7ef2f54762f6d15292cafa08111ef4aeded8fc1cbde25b721bb8b. Chain 2 (Bitcoin): anchored in block 958514 (2026-07-18T06:54:37Z), 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/QZ4JJ1934539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4594dc69d49e43600d578e7419037b60c5462dd597ecdb4ae918553356715d07. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:24:15Z), 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/QZ8LD1969877.
From The Back Cartel Anthem (Jersey Club Version)
Cartel Summer Madness (Jersey Club Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x171b5edd25c495a39d1e4841ac9a4dd5209547419284d167b1ff1801a8ae7d1d. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:58:27Z), 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/QZMER2294513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd46608deab7013b5e0a2bc7df25524e9f87c8dae973b111120e1038eeaf59419. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/QZTAX2341088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff81d7f93d073da75bf2994b30c1b94b3278a3008c17b8e409be2bcb87477786. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QZTAX2339005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cf7d2f284c05df3029ef67195c5ce0069671b42b11bd30ba79eb70429da91a2. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZTAX2387770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x617cd30a3b59360d28717e641ade7758ebbcb4a07deca2df2f124b6ad60f03e7. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:37:30Z), 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/QZTBA2315070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17be8a22fa4342f8b43c3c03b142d043437135b43c5992409985f763011a1756. 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/QZWFM2432518.