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 0x5faf507f8be79e0636292ab400ab9a9fd452119597dbff546cee35ca8cab4ea1. 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/63156224-6013-45a8-823e-219d364a22a5.json and https://artists.proofprofile.net/proofs/artist/63156224-6013-45a8-823e-219d364a22a5.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 0xaad2eb7eac1bf03b0a279588a6fd67ab8e9990148af84312ca52f2ca8c8e43cc. 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/USLD91736320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48a6046cde678b0715eff64b3f05b14e73987620e7e43e8751df6255da6a7c5b. 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/QZQAY2312387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8e73441673714e6cbcff6def6aaae7fb7e93ce889b9fbedbcf3e58791f07be0. 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/QZHN92310260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x126b323052f3f371eaae10fbf969f1f789d2062600795ba518dd386d73d59ef3. 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/QZFYZ2186872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8809c350c91afb20433c326090c343700dc6e1372386db4ffd31664e2a3f4624. 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/QZHN62430919.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5b24e2f3b874043bbeae5fba8a5c79596c4d3b2b7d1c4a4542cb849834bed0d. 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/QZLBC2324748.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bc24daeb5693b90419b3a8f4afe133839c5e78281f825059e09073bcb15a21a. 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/GX8LD2319257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f9a49bf699bde357cfc5179eb4031ad46d0dc5da2ddc05caccbebf6e4884192. 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/TLREW2220325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae75df1df2eee4be8ffca00cd0c5c3e2e6fe3ed30b2423af5130f2c04856c763. 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/QZNJW2246949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf06eb815caa94e715172e6f20fe8bce660ac65d1de9b49851478636ce3e67b77. 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/US3DF2248296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabe88911a46c1fcc79db3361e0a98200277f45e7b6d4fe8551d68be086cf90cc. 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/QZHN82220665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f4692a830228a871c074a851571a2552bf5efb309a79549893f43189e41a852. 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/QZFZ72281305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x420d36e6a849079680e35f78350d92052a5ff3c8d26c6be69a80bb6b7d777d00. 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/USLD91735526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62e4506649b76068a093e9ad7c25ea42c41c4e9fa60a0956839e6430edc29401. 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/USLD91735059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeffcad4b770d81c665fa0bc0b87502fb83f21006e32d160298cdd4c5aaeccf17. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-16T13:51:57Z), 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/QZHN42105841.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a535b5ea49485963cd493dc670dc807a6dee0d8de626542883a0312b1e2415e. 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/QZNWY2096275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadf80d42bdad90d60a470c6d958c15ec3267773050fb878d79c7fe0225b69420. 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/QZVEM2324187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x293a751c041e45fa36739cf2c47a39f57a17f4ccab04b02f1692638790fefe55. 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/QZVEM2324188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3787ce93ef231fb7f04542408e20a09bc9018727a8282885d7bf827cb836c2f3. 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/QZVEM2324190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f187efa7d533124b59841effc49b640f6c3bff10e2788df1567d1df9587499f. 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/QZVEM2324201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1b8d2b953518a3395167d54a81c4fb906aa3cfd72ac3a15e46c77f750ed3ec9. 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/QZVEM2324204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48e85060e6e116c0eb8e4dd6e8b03c7d9fc80b2fb2729f3a8b86ff0be29ea961. 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/QZVEM2324209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x401aaccefd354e30af09020819f65d71855c587c61e794d03adc79cb2a773458. 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/QZVEM2324214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce6dff0b082db342c2f104c4211655e7a5162989845b879a0c7b01aa2b5dd6d5. 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/QZVEM2324226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83c1062899c0198d7f940ac3779e22773a82ae5bb12fc5032209300d59ce69cb. Chain 2 (Bitcoin): anchored in block 960419 (2026-07-31T15:20:33Z), 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/QZVEM2324193.
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 0x87d8af6741301454b66e98ddd19a0fbd64bf0bf26787a862516f37be047720bc. 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/QZPEW2213513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70a0f19f161f07ee1a576475725b011673688dbc0f95f66b142e599732b2c573. 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/QZPEW2213514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd247349c3239d7323865a70005b7a4f2b89eecc0594d49f9527dd72439b4a013. 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/QZDA72110907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5031dab3c7f5caa0c9d8e740fe3561b6bb2bf30505a729e3c46149c7c2429584. 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/QZPEW2213516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5703826638ed322dc442d0fa5a0e5de022c8a76d1f9fbbcbf4febb046ebbb486. 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/QZDA82155936.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03a61c653e07ea2a415c89d4231d3cc9c3a7a771e98023940b76888ad40911ec. 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/QZES62176185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dcf5f1e1fd1ea34d5263171bb9e55a341d5fbfbcb5cd15f75039b9f87f4d504. 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/QZPEW2213518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62a584f495677b66cf64566cb5cccb7d6155840c8b8b0a92747700f732538a06. 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/QZHZ62136784.
Self-Destruct (feat. Erin Parkes & MXNTIS
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d89421377a279fba892a6a98a27dfacadc955dafd1453c1361668a3450d3132. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/QZHZ62136785.