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 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 0xb70874873e5f4a1a66acacb823a354a40d66a945fe56899ed4a1fe5c29db93cc. 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/9e8b8e17-d397-4bf7-a13a-eff9d5f21252.json and https://artists.proofprofile.net/proofs/artist/9e8b8e17-d397-4bf7-a13a-eff9d5f21252.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Embriágame Suavecito/Los Reyes De La Cumbia
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 0x3f0c4921cac2f42360e21100cf8f482a1025e45eb7af144755f6cddb4d4de34c. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/ARF060701530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf9db07747cacf1fba8515ed498514b125e6bc2d20300134a4a75527abc2d0a5. 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/ARF060701533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0de5ee22c51c4d9eb55fe365bf665e630768568d1abf67144aad1dcb24bd31a7. 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/ARF060701537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x673918f56c77ac45a0214924dc72718025135910aa7cc10922445455c5df2822. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T16:14:34Z), 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/ARF060701545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27d5bc6be63dbc6b4bb1df4148b8a8b9b4ef63598645b45d560df2f1e9d70f57. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T14:09:34Z), 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/ARF060701546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcd2c4c5c9af4973d981f3fdf5b37ef03a03551db5c76dfea92262dc49557c40. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/ARF060701547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c2981e3e2a851964fedad6074ccdb2d20fa925a39ed87064eef39dac802358f. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/ARF060701550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd87e20376e00680f09bd7ae63478dd3a9ef914f5bb10724d52a2d3376a6d256f. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/ARG991047253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd9541fcb3ca8d14ed8ee791ca68605d9ae6c2e7e152861a124757e58a0e553c. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/ARF060701528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f0c4921cac2f42360e21100cf8f482a1025e45eb7af144755f6cddb4d4de34c. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T07:48:27Z), 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/ARF060701530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe057bd027fd82a59b73593d72be388f0dfe4dd319c8b92f49d71f8766df3ac22. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/ARF060701532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec4144f0c7f6112534f78a689974486861dd32175c41b10a264fcdd18017e070. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/ARF060701535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfdfbbf69f637a1066111d8ff4b322b94ba225e9a1d08bae3f017c3b13d7e8eb. 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/ARF060701536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b9acb20e967e3ca47abfc78ca67b9d4c669d1a20769243c82d44f77c7471634. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/ARF060701540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70ced4c2486af00cd5c9e18ab307ee1d28d48009167f01d9fc54650cd1218d0b. 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/ARG991047261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef190abb482815d662bc4f78a4a6444acc37d733246a3e256ee888efd8bf6cbd. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/ARG991047269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2fa85c044d49f0cae002ac91c20ffb3565773e4f8ed1d58f58940a7002c6b6c. Chain 2 (Bitcoin): anchored in block 959088 (2026-07-22T02:14:33Z), 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/ARG991047270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb84a8d9ff130daf46159ca60a23302fe3146c8a69b7a3a5dedc2550c61febe9. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/ART0G1802173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2f7bddae2a5b4f93bd73a2499442cd4814694ca1d13cac86194d464295d7206. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/ART0G1802179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06d90bf11f904f3eb834840d1118f83f97ed80297fb77683871d2fd312a01d57. Chain 2 (Bitcoin): anchored in block 959069 (2026-07-21T22:32:59Z), 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/ART0G1802182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b010a9c613be7810dcc0a31a7bf5435561e56b627306d985440ef52a713751b. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T06:12:52Z), 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/ART0G1802185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35030007f45bcdf1283d5cd7a0df639be978c0cba992e2ce02a0fdbbe0212214. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/ART0G1802186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41d50ea30d4626742093bd907064a1d5972f643f4be3bc585b99a1d036585d6c. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/ART0G1802191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd01c160e01884675f7f4f49779b177a497b142754b4b614a6ee009d56c2db0ca. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/ART0G1802176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x610cf26fb397f720286d1f1f9314391009419b2bf0ae26c697cc19c766c88288. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/ART0G1802183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc60c9bc0ed6609ad73a2500d5895077de826d896aee297a29cf101b6c3c2796f. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/ART0G1802187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f786b4dfc5c90eeb7172b193e769c012277c6478157a127c45b445a7cb0580d. 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/ARG991042330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaacc1267ed0852797dedec5278c87e975513bb2b4afa48426618e8619bc792c4. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/ARG991048196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02724dfd3adecfb4f440286eeef630f65d757a65025081dc1ed00d762e553195. 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/ARG992042655.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d9126a415ce09bfb10d955d02d92021a2ac38f696ef6503b3572b59df9f74b7. 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/QZNJX2550736.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf53538fa3e70fd8fe6d2c38c1bbc165ac9c65c8672ad8fba23c89a056f9d29cd. 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/ARG992045048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3777598cf987081ed07a6d4e489faba5dfc0f85b2975a46227704442e3156b62. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/ARF060701542.