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 0xc0aaad7c515b421a4b3d640f3ed94f3d4e796f8d5cdcd3b9dc96a37bdda46d92. 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/a3ac8ef6-5df9-4338-aa8b-8e6d0e0227f7.json and https://artists.proofprofile.net/proofs/artist/a3ac8ef6-5df9-4338-aa8b-8e6d0e0227f7.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 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 0xea5e1daee3aecb1eff866228e00fe3fbee82494a6e69f8880640829efc27519e. 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/QZHZ62061193.
Pequeña Flor (feat. Impactados X Cristo, Evelyn Vásquez Shalom Pa' Ti & D'fe)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc327ade18cb0f08daa6a02a301d44b2fe39db3a4305704260b851973cd49d278. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/QZ5AB2226389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1637597ad2062e8e19c3fefc05819d1fa202e439b88923759e439e4c4f8a1ffe. 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/USX9P1234820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28f49c310d7538ef5123ea8ae833eecee0844f6987e62fa6dc452a14c434844e. 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/USX9P1234821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x190724497699f1282dd51539d6a51a58d34e3cb4ba99e4874ffedf2571b79af2. 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/USX9P1234822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x585e379f6cbd93b4530aff085402d864b66351f158dfee3c3715922eff48366e. 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/USX9P1234823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c05cbf296e188e443b9a09211947264fe4c473ee29fe7f0d94035d17b8c1f27. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/USX9P1234824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe68fc3785d33063a455e25163253ab58f26365e3721c8390153edee11dee80c7. Chain 2 (Bitcoin): anchored in block 960163 (2026-07-29T23:20:38Z), 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/USX9P1234825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71e086e8d30111aded95a5a488d39d414490a55b18882d731ce56ea2db1b609e. Chain 2 (Bitcoin): anchored in block 960170 (2026-07-29T23:52:38Z), 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/USX9P1234826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x427341d256c7075c1796e887fae958f4611fdc9d92f5b90ef53ec1e98a278a4b. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T18:47:29Z), 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/USX9P1234827.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb48e4f8638beb84351ccd4a450fae0d323a648b68a2323225231e5b8473716bd. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/USX9P1234828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fe934bc0264a77c29ec6e0bd5ba285b4c3a5c07d3df7255bc97eabaa681539c. 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/USX9P1234829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58fe696b17142d2a4d7fb98d9e637a1297d8e5f034d750d216e1709dcb40ad7c. 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/QZW9K2474157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x444ab323bec7f0c77e96dfced802cb52eb54d56d2fcd3f0adcb3240907fccf98. 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/QZNJX2457998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bcda72c892d07742eb2bb1ee4ac10fdd894055b31d3ef7c716f58ac22b44a14. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/QZTVM2340471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59d7fbf53a861269fb6e0e47509266007b203605f15dde1ab1a9a872070426d4. 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/QZHZ62118847.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe67962ae1a44b6411fbcdb309d6acd43091770a0cca10e5f4fd4ba3616a1ed96. 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/US7VG1993581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf800f5f19684e6939cc7bac9392b49e03612d1039f5526283d7acda5255731a8. 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/USHM81827524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc76d94e3b3218e78794e605c7e44f51381edb0c5fc13fc4c50789bba06b3021d. 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/USHM91788670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc235bdc4b9ee7fa383b17a32a66c701e40fa4ac282569e6822496956720ceb29. 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/USHM81655122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c16e66da0c90bfa460070d6a47686e649a3430f5f57d03e699a858f4f8db635. 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/QZGLS1910423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ff39c6f8686619631013fcd3425ed352d89613661b27eede8547836e0a80854. 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/QZGLM2500788.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfedd94ff5381cfc117c07381a8f4c3f8b1fed2d041624dbcce39a3773dbec9da. 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/QZGLS2102840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e775bf7faf787cb971eaca3eb211ac3463f06de786d5d2b7f1d30e0613d032f. 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/QZ5AB2177490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc06e1b1eb5c07f844c252cb72366e8801b64d348e990f56df41f1322b7f02cf6. 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/QZGLM2500789.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb720cdd005904d6cf81a81cfedeb83cd174ce97ab67c1e15e5ec86c3c831a4a3. 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/QZGLM2500790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80df4131d4ce2fc8e7090791c926741e4b6bbcc1931f70fcda78c52872586030. 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/QZNJY2104882.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeab45321604d66d08641b5174bedf672c0958d4a039560ac776154744c0f4ce3. 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/QZ5AB2409886.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13881477ca4a51a7aa3001dbbbad819821472b86c2b922bec7d265ff9d0e52cc. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T14:03:35Z), 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/QZGLM2500792.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda9e8c3e43d1daa7764cebeb8ece6ae436519e00d85fc7004b04ec16aeda4f8d. 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/USCGH1748879.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x253bce2a6f63fb41cb6af3ea4602ca564587b680e0d9c455bfa03da5e788a0ec. 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/USCGH1748880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x118abd49a5d2fb9b26751880047ed864a5ba122c5b3bcfff750b81f07045871a. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/USCGH1748881.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe56e9951081a18727f08bf5a1eded4ac26247b489763de0d510acb493ae5d90. 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/USCGH1748883.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5579ffb169c76f47b21f4a13e28f8cb8e4293ec1597f5d1d5109f1fd1701095. 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/QM9A91627130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x578e2f015e9872fbd8b853fd5f957040e8e925eaace1dd8117fdcac96f685b82. 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/QZTPX2380889.
Un Dios de Grandes Ligas Propiedad de Cristo Live Concierto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c28e3f3436f1dcf293f6fe48047c6697df05cf551124bb41b7ece2bb5821569. 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/QZTPX2100226.