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 0x135f8cd0a6faeca690d70cd672b39f000f88411f39b91c4bafc887f46bf111de. Chain 2 (Bitcoin): anchored in block 953777 (2026-06-15T11:52:51Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ce66d218-9e78-4694-b0e6-1e5e016c0c54.json and https://artists.proofprofile.net/proofs/artist/ce66d218-9e78-4694-b0e6-1e5e016c0c54.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 0x47a2e9b27bc5d318cb0b77cf9074fce7bc814b8f7568d0dd427c4f6f3eec3585. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/ESA011701534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9edc8f2b923e1d8538b055a6a4b52a54eb1d701e73f85149e6c88513462db0c1. 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/ESA011701536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8cc523904719b87bb88c091cfb5eb604eae1d6d029114ffac81fcd0b68ffe61. 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/ESA011701537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x573ade6ec6213a05a8d94ec2e44759165cb84ed41f041b51b5b86b51086333ea. 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/ESA011701538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dab2a606c6700c5b402c5650556802eaccf3e459d043c2a66471d0137d47cb6. 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/ESA011701545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaad2e5130484e242d5989dfe5a39896df6dd52f430fce9d60f860d28d4a4ba40. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/ESA011701532.
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 0x52c8db0ca8ec86c079b8f5b6763631ad794fcadc379113f8cc9f6c8d2fc714da. 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/ESA011701533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ee0becfc8c097211085250d50f14694a8c131d45187c6d484826a5be92998f4. 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/ESA011701535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe98be9ab398868346e68466c9e57d51d2c3d0ffcbf0019cdf10387b369714910. Chain 2 (Bitcoin): anchored in block 960387 (2026-07-31T10:06:30Z), 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/ESA011701539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb293752940e60cbbc387961e2dc0a45825b27b03141145fe610e23dea0cdbc63. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/ESA011701540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25240dcc9d4e1ade9938c052d1dc3cea55dd4856e3d18416b2d286a14ab53a6d. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/ESA011701541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77d9354e59929e5856a13f14e75c1fa4d66abfe1f706a8299a831b46be315456. Chain 2 (Bitcoin): anchored in block 960355 (2026-07-31T05:49:18Z), 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/ESA011701542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb68e632c689e1938ad96af65e1da05531996b368c6ad3342e9d9c5823c6418ea. 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/ESA011701543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3b7a053e3e202ca8d9949f1f0c02b39e7e70a43b1c39ac4727ce6c605b3bc8d. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/ESA011701544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x361651aa5ade7290c73d0681f5bdcb5bcb23d717b0065d70e3b607d0be9792b9. 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/ESA011411104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8caf833222bd6c14f7e452a0e9eddf680c15c700293b1e82916c3b2f775281c0. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/ESA011411106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc37fbb66bcda28dd654cd3cba2f3fa6c4acaf588e72aaf7514059e96e5ca9101. 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/ESA011411113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99b05c189fe61181a1132d41cd92aa7161f661b10362d428192ba395c80845a7. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/ESA011411105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bce431820932f4cb403f3145a62e547db5583ab1f0d85182911acc5fd3251ca. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/ESA011411107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38a16cae90cb282bf9c3a28e76a223fde3f88189a7aa2d4dba69f09449638b96. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/ESA011411108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba21058f4c5b5d02076b131e58753b98c327acd889ac2e9223c614473a371edc. Chain 2 (Bitcoin): anchored in block 960376 (2026-07-31T09:09:19Z), 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/ESA011411109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdab355f17260949c061bdda894b765b6ac738ce47097fd7483ec4f00bfd2dbb. 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/ESA011411110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6cb1073002b2592e3c19b1ac145ce6818891cefe9328d37e6e48c41d3ed4017. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/ESA011411111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa59a03e8c11a586909047fd7669c367789470f4fa74982910e79f036a2f84b60. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/ESA011411112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4089ffb9b46a765adbfac1c298d02dda1cb03fdffd4eba8d668b73df029de98b. Chain 2 (Bitcoin): anchored in block 960381 (2026-07-31T09:50:11Z), 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/ESA011411114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8eb5d95cde71289ca0b638bfd45904002270ca227e2263d41b83abc0fc780957. 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/ESA011691041.
Soldados de la Música (DubJuggler Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b11dece8f17e3b0e4b265d63dd8b658d44b642b19ca91a18824fce0e65d3817. 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/ESA011405194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1fe9db4ae3b12839d0639e08f1ae7bfa56e93da6b25cb17410a08dc09ed9d10. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/ESA011405195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f154109e82c3b1c00da08fb5d806865daadc47bb3209a8ba1a527de69522bae. 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/ESA011405198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9424a212ccfd7a85304a569f221cabdd34b41b07340eb9f4b2bdad7bc51b1640. Chain 2 (Bitcoin): anchored in block 960389 (2026-07-31T10:20:10Z), 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/ESA011405197.