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 0x408dac023f0154ae9a178c13f7a9eb76c6ed547c7ca7ec5c312a69c1bd5461ff. 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/fbad8512-a3b6-4742-85a0-618b4d889892.json and https://artists.proofprofile.net/proofs/artist/fbad8512-a3b6-4742-85a0-618b4d889892.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 0xd4aaea26e5d46779bff17e6531f2158a2d3a9244e5fd69671d6858b60dd25d83. 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/QMGR32276679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31f13ed047ae909032ca289c80ef73b9a56dfce9bec3956f6228e94421ee5ef5. Chain 2 (Bitcoin): anchored in block 958736 (2026-07-19T15:47:36Z), 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/QMGR32276669.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b0d6df073f43f037c7b5bbb8ace8cf9e7b2a7fc6e5a9e229ed6d4eff2367a84. 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/QMGR32276686.
Nadie sabe lo que tiene hasta que lo pierde
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3715d81f1e781d9dcbc6a4ce2f1411c0130c8eff9832586139aaedbe9d58937. 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/QMGR32276687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c6437bea30d69b59767f21dcee8f173efdad68d33528a3288946e9727053230. 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/QMGR32276675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65b3ef432416910f8f949a0c2a696a472046ce11f59303ecdeb80e949eb3f972. Chain 2 (Bitcoin): anchored in block 958142 (2026-07-15T12:39:52Z), 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/QMGR32276668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10eb85d81d11921d399d211f064a39997057a5132dc4e3b7073d8515e8022604. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/QZQAY2156219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c25927a5ecf8d368a80a21e58d9b64bcebdcc62353e052c6f0de14bce8ab822. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T20:46:26Z), 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/QZQAY2186069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e3c7e83a47f9ffff6f99beb87d4a38f4333d4f0dd2be4b0a7c9416177ae9ca6. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T19:59:01Z), 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/QZQAY2169022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02b3f5b44dcab0befbed342eb68e6df1e6cf623538be2fce9ebd59c2309f4346. Chain 2 (Bitcoin): anchored in block 957780 (2026-07-13T00:36:44Z), 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/QZTL92153521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ac8cdd0566a6f91ea97e61cf0bb9bd246f9dcb1a463a1a4694e43e773b331a6. 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/QZTLA2390222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba86d73a58642b5af6730b3a5f260d3ee02a23b358ee2ff983d2dacae66b7c0d. 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/QZTLA2383717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59f559fefa9b00d9c9663ad5c22568bf04750a8cbb73bb9c2f7322e9caf150c3. Chain 2 (Bitcoin): anchored in block 956578 (2026-07-04T02:23:20Z), 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/QZTLA2398389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bb61b5f6c8f3d63bef3ffa615e97d28c259d87867f8367c6dced6cc80efddf1. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/QZTLA2322248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x234c2e1d6d25cdcdef281ce2dd2cdbd786db8b73c133f4a81488148018c1529a. 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/QZTLA2335207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1447475bef8ad8c578c171048cd41dd83f1f304aedcc976ef30f845ee01dd62d. Chain 2 (Bitcoin): anchored in block 956578 (2026-07-04T02:23:20Z), 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/QZTLA2346546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09d7185cac60532dccad1c60ae11c7293746eafdd1c86bf624fa71e9e936d463. Chain 2 (Bitcoin): anchored in block 958392 (2026-07-17T09:46:31Z), 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/QZTLA2322869.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd04ea08abf5d288ba297f0f6e821b84f3f47e5db23b9baf28da9011b752c893b. Chain 2 (Bitcoin): anchored in block 958526 (2026-07-18T09:09:53Z), 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/QZTLA2347328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa69ac2bc8f81782fca9a82164687a99d8c7995a0cb99fe7c9c8564c31f95ea65. 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/QZTLA2355760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd559eb24b4e72e47adda5b976d6ae79a39107df8bb18e9320e6e76696f7d073e. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T23:10:11Z), 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/QZTLA2308736.
Perdido y borracho / la culpa de los dos
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x349544dbc26feca2c44e41b7e035cc03d54bcec4f7d1e785c30742309b6097da. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T17:52:30Z), 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/QZTLA2380706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67acf81195322e3fac0b19f5e55e9e24b4e2d16543da26c630cdb556b713f2d5. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T12:42:58Z), 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/QZTLA2303747.
Hay que saber perder / porque no te vas con el
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x444bbc87b470777a030f1800edb3dc56386315896afbbf57611962c7bbbab70f. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/QZTLA2393342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaec7987e1866821a828d9ef0da29485b7efcbe15c9459ab49c4cbbe765f7348. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/QZTLA2320069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5594d2dd123e6d47287d90232cec5cd9fab1501a9f7ff1962d25c9e491ae6f6. Chain 2 (Bitcoin): anchored in block 958126 (2026-07-15T11:04:38Z), 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/QZTLA2379376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbeaac3f515ca02d3e6c2d12b87a0ab4b3cd43b7125ca9f90fa1dcf2c51d000ac. Chain 2 (Bitcoin): anchored in block 959002 (2026-07-21T11:47:29Z), 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/QZTLA2355030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf452fcbe10cf183de8d086cea66b824c210f6137d2909682ec481a55ef84e936. 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/QZTLA2373669.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56f424178229c40c00abcf2d75073f5159874e19606e1147c105b1a82d5eb50b. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QZTLA2381114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a4824dff7e5b7de5209abc9ff2be855f1c1aa01b0b646dbdb23c323e609c77d. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T17:17:44Z), 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/QZTLA2384287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a2747a521f0eef7deaba638f80b69a6b6660db5f3621c051499fc644029c30e. Chain 2 (Bitcoin): anchored in block 958523 (2026-07-18T08:54:12Z), 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/QZTLA2397722.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf73dce9750fa9a518e7435008c446a8a869c80385b66d7ef5e923c6793659535. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/QZTLA2313770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x150613b84add7bbb0b4ce88cf28dddfe7dd7cf5c23a501ea73bf368cc0f8a8a7. 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/QZTLA2355279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2ab9570406502939e1eb90c636d764a3a366e63b59abe11d890f823ffa0dc7e. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZTLA2433776.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebf2d059d57eadfec6f2613ec78b8a134c9255e8991a260f9755bd67e4adf9b3. 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/QZTLA2543055.