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 0x6a5a2eb9c629fda59f2c20b22ae550d5838d039c26adf7efcf28c8d96e22b808. 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/8771075c-20bd-41ab-bd80-5cfa943fdd13.json and https://artists.proofprofile.net/proofs/artist/8771075c-20bd-41ab-bd80-5cfa943fdd13.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 0x85e1aceef899195bd44b2ef444543e342ec384be4cc584903861354737e12fde. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/GBSMU3140483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8a2a01c040b8cdbf74cda39e52790f01538b89970f52dc888e90136446a316b. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/GBSMU3140484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68bd551a6ecad436c1d8ea09bfd6fa97c8eb2feddd3f14dcd99a1fc75cf4d777. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/GBSMU3140486.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x084f2ffe5b672fafc49bcf6e91a6f98f8ccae3d2a82497c75cee00455db21466. 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/GBSMU3243662.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b13408d43bb2e25e83a31d18d11c61016c0f58036290349536a09dc00acf748. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/GBSMU3243665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d45c89ac7580338e3426093ded81cd09596f9025379eadc05090dbd7d8009b1. 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/GBSMU3243667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb18aaf1c1e3873af18d2f6871904bc4294a2bc70b7f274990704dc2b071f44f. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T02:46:47Z), 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/GBSMU3243669.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81f5b1c50568b45911dce93e69f4c142ee2f27b3e82e84d9bd344f4eb77be7f0. 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/GBSMU3243671.
XIX Convención 2018 En Vivo desde Santiago, Chile
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf960c091b97ac55ea15b80d91ee03cf7d8ae03eaa5f5f65a05db7d1e313d6da. 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/GBSMU6780552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3aa7fc0086287ca263a37c133da7289de8325183618c711ca0ab1555daf3b001. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/GBSMU6780556.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ddf4b45c62da7481de959e104ad63785726fd6d883cb7d0e648f182a3f9e185. 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/GBSMU6780559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86c182eba75e85ce5ef1adfd2a24e29e57234bb6d6e99555c4d9e499afd2a48c. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/GBSMU6780560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc21150f73e801b97b62e5a4eb759827f95a0d6096d6ae820a1c3b0ffa1430126. Chain 2 (Bitcoin): anchored in block 958268 (2026-07-16T08:56:51Z), 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/GBSMU6780563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c5ea645a16b62ac832b9b247a592fa5061e9536994784039166374a3a277d9b. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T10:05:23Z), 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/GBSMU6780565.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cc868172939b2a4417102ccb3daa3a28380cef59d186203819784cff02a80e5. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/GBSMU6780566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3d02456fd17645a27f817e9a86ccdf97befa60f1867f2b606e12e473a9bc3a1. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T09:16:54Z), 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/GBSMU6780568.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b1a5fb12903ccb63978602daf01eae4aa0883bc5ce3e6b2172a9b2278663dba. Chain 2 (Bitcoin): anchored in block 958268 (2026-07-16T08:56:51Z), 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/GBSMU8231912.
Medley: Digno es el Señor / Consagrado a ti / Espíritu Santo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcff45194ac0822fd0c6c7141ad9437632c407acf7e7a1de9d72c588759fc5412. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/GXESV2490369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b1e133d39d533f4c33bdfa5ca5811470688b50e0cf76261b0324e3a1f8f2e19. Chain 2 (Bitcoin): anchored in block 958355 (2026-07-17T03:11:50Z), 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/GXBDT2463997.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36fc82efd4d2147dde7204ba387e52b31cd44634b41e5cd762a0affafb01f8b3. Chain 2 (Bitcoin): anchored in block 958121 (2026-07-15T08:02:12Z), 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/GX89G2557539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5ba93dc43254855605c897a6b174043f1d38318f4446852010a2a0cc9cea31c. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/GX38U2568319.