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 0xd2d7c7cb44a0cc0883721b843a053f8540d20d4887871281d3221bbf537b56e4. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c84604a1-5658-4625-b521-cdf72b8902cf.json and https://artists.proofprofile.net/proofs/artist/c84604a1-5658-4625-b521-cdf72b8902cf.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 0x1fb567f9cd429133b74e25d2d290c3967c723e861ce8af579bb2418f250790cf. 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/USANG2220349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x490d975605fa4868ad42a4f347a2b5d76cb7ee5306053e1668055b3d6247fcbd. 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/US3DF2236315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31b8694650309bd1c69e8c8fb64ac7e4849b4f5f3f5f54ef4b6852352708cf2b. 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/USANG2226490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3ce0007d4d2abd7f38a77434e9b6c2b725c3985afeca78470f72db6f1c0ec04. 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/USANG2240413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19e2c39c3e3ef4ec051a4461463423339e01557cdf9e23eea3c747e8279ad175. 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/USANG2259412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ece926a5d4991e331ef1934d245f63f3a564c39197e2f22c8a3c82353e0d8c7. 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/USANG2259414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28101c1adc11adb6e7d9f979484a0059826fd926d0500708e4ffa0afe7484b34. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USANG2259415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a38a9918837623cc04217ca7c4284ec7d633b0f96fe81ee756b28b5ab95e338. 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/USANG2259416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1883066208c61c21f89115262c2e33b32854a487329f830d70d79326b4442405. 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/USANG2422485.
Quiero Decirle (Ruth de las Plantas Lofi Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0aeef48ae0106cc46945caa323363bc1af15cd35c89e0409c99adcc331021e9. 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/DGA0Q2381984.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fc7f3c89c266e16e78803daa2ece54cac74a3b30bc45f1b019c6840c9b12cb4. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/DGA0P2338576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x332506e69d1348c57b82a383880e214df5aa91349c90b754351b6e9271fbae6d. 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/QM3DF2278603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f7dae21cf0d467d7717735b3a99d9378bc998ce52ab492ee42102c746abfe4f. 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/QM3DF2269204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91ddef93e3551836d586537666ebdab81484ff23578238b63294b7e07c35be7b. 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/QM3DF2213403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5f5339a4ea7a073ece10363f39e7034a5cc965578b47ec98124f6818731a717. 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/GBLFP2349303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3941db0fe65d28f1e2d51665b59aeaa817daebe439e0715cfc29df87457d811e. 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/BC62N2300101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59655ec09528e547f583b79ed28a51cf023d4306530f451ae7a557f0deb06503. 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/USANG2295704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48a8381ec69d1affbfcffdc1adb274ff704965ab3c804f2b9e8ee62d6c9f1784. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-21T20:57:15Z), 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/USANG2238796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3ce0007d4d2abd7f38a77434e9b6c2b725c3985afeca78470f72db6f1c0ec04. 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/USANG2240413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31eaa4f02604a1c51de814b530233fd96ab66841ddc0b97381be8340d714c362. 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/BK4DA2203938.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce1f05d528a19b6d30a5bff6a026b5b8f53abda3160886337561f4b98cc0d9ef. 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/USANG2217801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18464e27aa5205f4049fddb3dcbb4cd9d14f324f47eee806d9ca6fef14dfb174. 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/US3DF2261261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xceee3eb58e36aa0a0ae44795138ddd80e092f57754a0db24de0df4812867d7cb. 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/US3DF2242960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cacdeba1d1941cbc32166dd0c62f920abb716ffc756c15349f52ed20778c526. 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/US3DF2224703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bad80b066b040d646d90e67c6fae4032fe421100ffb7af61b87463cf00a471c. 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/US3DF2209547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0b578fc74ebb581de903fa92dfdd672f4871fc3f440aa78b649aafe4b501731. 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/QM3DF2192430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd20c133e9b7d054b0c1e2d9c7765bea17ee1f042da05729c451649272696ae89. 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/QM3DF2188620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07074dbb67dd6339dd7214645193c888e1819bb831b32678df2e33abdf1f173d. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QM3DF2174083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6e46de2fe0c88de19af3fb3979ee5e4f0601038080ee447ab1d3e540f61f925. 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/QM3DF2166397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8481f0daadba41ecc58cfe2c4408d95f87f84666d2f2983f4003ba87a548fae1. 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/QZNWU2139302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x187a6c168cdd875f138dc7f92726c44e5ad701f84636439035aa1652597569f8. 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/QZMEN2183489.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe807c679011050802cc029e7fef549eeb4e5941ee6674284b40fa76dd5c77efb. 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/SE5BU2173679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x471f073c9054f22afbd3578f9177b0e0122f87cdd7099922f63ceef4401895cb. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/QZHN62146443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1982f2dfbba8891d7187756e47cd9456fb1c9df09003d77a279ed3a1c09e901. 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/QM3DF2128475.