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 0x893ab15bd4514f4d89881582d7bc1ade711c853eb16085c809c7615bb479a52f. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f58542ff-3e1e-4a36-a79c-067bdb866bf3.json and https://artists.proofprofile.net/proofs/artist/f58542ff-3e1e-4a36-a79c-067bdb866bf3.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 0xdbba78451deaa9a2b20e934061cfc2c2c4ff02f8991a6f9bd14e8ba336846cdf. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/USHM91833270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72539da37b283e4ccb92d39b05a828358c777ef042b0790491f2f10aaa102bfc. Chain 2 (Bitcoin): anchored in block 958992 (2026-07-21T12:30:26Z), 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/QM6MZ2010248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4a402e5e7d1be4eede2f8dc6d0ccf791c9330fd5420242d7ab30f040bab4533. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:09:22Z), 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/ARRWN2000044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34a540744fea91f61b38f454c5bbbdb4527450f9a770b8ca3734e70ec418c367. 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/ARRWN2000083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f184ed9d158525d1299021689454151ac6c1ef4ca204e7fe9a7f521133fcbe3. 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/ARH7D2200021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34a540744fea91f61b38f454c5bbbdb4527450f9a770b8ca3734e70ec418c367. Chain 2 (Bitcoin): anchored in block 957919 (2026-07-13T23:58:45Z), 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/ARRWN2000083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30dc97baa1db413dbfcc5e66ba0d9238fcab1ca372005cea9eef1f18dea2a17c. Chain 2 (Bitcoin): anchored in block 958325 (2026-07-16T23:52:54Z), 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/ARH7D2200022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x059e304d6d0d5ab2b3506143e7e2639a448e7e51eb452dcc164e6b867b0f1a1f. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:14:23Z), 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/ARH7D2200023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96ed5d73c0f8125fcab4cc4a4d6cdfce43dc6905fb0730307f623f41fcd8a2d3. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/ARH7D2200025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7d4fe9b2a4115e523f2916fad700532aadb810c9da5e54a78e254c102f2256f. 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/ARH7D2300038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b0df11adf3749772618bf758d948f4c786ca84dc5018afdc87e472e7c78d8f1. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/ARH7D2300044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c0a5c988101844f1f3dc27de091388efd7063aad928c9cf6066d54fcfc70f02. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T10:43:48Z), 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/ARH7D2400063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x590882648c042b100a9eba28fb0e1f409cc86e33b329f5ec121201912c5888c8. 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/ARH7D2400066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8c65d71c157a151fe4847dbfc0e518c2f4bf881fd6d9f36bb452b0ec469f204. 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/ARH7D2400073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7601c934a15ea5426fea279a85a2907a00f08380e301d1949447dd4fb7d1059. 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/ARH7D2400086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x803b079f44aae6749ee858f0df299ad186bf45c7316035994b9eac837038b6a4. 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/ARH7D2400100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9ea70dd93eb962a7e1338d08bd22b450a22ac3ae31aa1853479bda100feefd6. 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/ARH7D2400094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e73189075d48ef3f548b982fd7d3b305c671cdd09704e336d18a7668ab03e55. Chain 2 (Bitcoin): anchored in block 958568 (2026-07-18T15:23:47Z), 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/ARH7D2400095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa919626df2c22e9589d082d899bd25608b282b066ad5ab0baf091829d8029f0c. 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/ARH7D2400096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72ab0134edfa68af611d7a3db1b4453cedbf2edddcbe756d3b8a048165020aa0. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T06:36:47Z), 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/ARH7D2400097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x707a74e52bab311ba4ebe7a1829e02348903d25a5d4bf04b3a16d595dcd77d63. 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/ARH7D2400098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf29bb7270b1f70b863a6843aca595d2fdae4a4eda40340a83f4a60fc18b7562. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T12:44:42Z), 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/ARH7D2500122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e348bd44fe385457bd7e703ca8395bb9ec20324387b0d91cf3ece0d73836c6b. 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/ARH7D2400099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7601c934a15ea5426fea279a85a2907a00f08380e301d1949447dd4fb7d1059. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/ARH7D2400086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x320eae4de526b469ef98dd909adca8264fd52d21ca23efa497acf341ee64a463. Chain 2 (Bitcoin): anchored in block 958918 (2026-07-20T20:07:38Z), 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/ARH7D2400082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x803b079f44aae6749ee858f0df299ad186bf45c7316035994b9eac837038b6a4. 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/ARH7D2400100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50d0eb2e623f9cef34b9283e0bb1aa0780b9f56038ea68886a7107f5e28b1f8b. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/ARH7D2500188.
a todo el mundo le pasa (versión alternativa)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31356de96c81296aeca5dbd314945c992fceaac8e122849cf4f3b800994f8286. 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/ARUM72500090.