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 0x2a35d5ea973825d6c32b7fe632b88b2d41ddb8f8294f929128e78a579258803a. 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/24393b87-d7bc-4e5d-a50d-5eb7d17ef37a.json and https://artists.proofprofile.net/proofs/artist/24393b87-d7bc-4e5d-a50d-5eb7d17ef37a.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 0xe752ed571586aa47bece6fb83bd0a932849b99872f826a469bbd07279444d942. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T09:11:53Z), 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/TCABL1201272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6610f22c94fd07190f3f1d0ea72fa50ffaeba9fbaedd61684e49eba57816971c. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/TCABL1201273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc5cdeae014ef5253299834d1d04aeded9f5e268a6e9df0c04023212a6f58f82. 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/TCABL1201280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46f05a3eec4b2de70da730dd157bf7a17b6e07d38c143db6c4724650aa6571ba. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/TCABL1201283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dfeb02ee509e00083d7148c3b7e673c36a97206f984c3eec6d35b50eed19361. Chain 2 (Bitcoin): anchored in block 958660 (2026-07-19T04:21:53Z), 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/TCABL1201284.
Yo No Se Sentir (feat. Tino El Pingüino)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d2f04f1a233110defe210261fb32a62af9d7670fddaed8f1216647659768fb9. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/TCACL1686976.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37b3d2462b092a1895da1298ab97cad84fe6d50bef73835a22824e5a16cff3cf. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/TCACL1687015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d7541f471db4c3879207059c9e3e1195c549c3d23d70b1c3da2d5e3bd91416f. 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/TCACD1525103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3518e912485123843dda1de4f802856c955770c1513b5f49f3217f68a5c959e3. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/TCACD1525108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d68b55045d2bcd2a14ddc6ce6ef3bedeae9c805b6fdbca45d1da6664f13f5eb. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/TCACD1525111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8072613964e779a92932ec8cea9eda375b0a7091b0cdffc60c86ad14927bcfa6. 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/TCACD1525115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5803c797e31a02585d6becaa732c9cf73009f276d0ab2db10c4f3f63cdc07e9c. 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/TCACD1525128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe690a13e60689f9aee16f78e90ae6ccc3d315b1f24aff1fcbb08d86fb5b46a47. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/TCACN1630546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dab2b8d96176a7673823ed4343f09399dec23e0ff0d90508580f82790a57c12. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/TCADE1716474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3011219cbfb1cd805dff72724dd67fdd50a16ec7f8ae2580f7ba2171213d8d8f. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/TCADE1716477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a28ecabf41f489ca59223ed21922ea4427475ef0afd8af9e0cf7f4235e0c026. 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/MX5331700039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf05044a786d95e6e92b19be0a100707e5f2587175ef0cd78631572920bd7f8db. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/MX5331700041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8de7deadada8aa2d14660b4323f397befcfa8aa616be23cfcb26ca585a7a3395. 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/MX5331700042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f23bf8566647e4ee487213dc88fccbddc08f4e1a4185ca45ebbd2f340ff263d. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-15T21:23:21Z), 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/MX5331900065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbbe302acb0105b91baaa0d67ef3e2caff53d608cef5821e26d052e539da5dc9. 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/MX5332000084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x877babdb667eff87e88f3042827f3084f676bc1a35cdc2e33244d3026e203d50. 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/MX5332000085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d1e817557c561657d4e1ddae2a3fb2e1fba9e1ee8c967a84a9529b212ecf400. 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/MX5332000083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b3b899694319729eae427873e3f08c9d05618a73e7616938961eab29dc26933. 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/MX5332000078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20c244e4f2fbd209f9b0dde88b3194a9da5ab048d52108e9b2ea2808008f8d38. 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/MX5332000079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37720047426669d1d66f7d5b22fe764d959a51c348ca8ecaf2c0fd353bafc905. 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/MX5332000080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bf3cdc9c8721716941a7f231e0cc505ca4acc10eeeaddd65564b38d6eb8d227. 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/MX5332000081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc3cd14e292499a694c2b2478b10a886937f7d49311f84005d08aa0170e2ee6c. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/MX5332000082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d1e817557c561657d4e1ddae2a3fb2e1fba9e1ee8c967a84a9529b212ecf400. 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/MX5332000083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbbe302acb0105b91baaa0d67ef3e2caff53d608cef5821e26d052e539da5dc9. 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/MX5332000084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x877babdb667eff87e88f3042827f3084f676bc1a35cdc2e33244d3026e203d50. 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/MX5332000085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2190e28297250465c306e848be8487ee5e474639586d453f6ba52cb0c67602e. 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/MX5332000086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2167f3f2d90e01044463fc423d6f0747b64da4b3de01f453e8189f43efabaecc. Chain 2 (Bitcoin): anchored in block 960212 (2026-07-30T05:43:45Z), 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/MX5332000087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2df0271e51a8692ed986d266905c7aea2de6f066c97b44527ce7ef646c62aa4. 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/USX9P2065589.