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 0xc01bb63ddd96d803f83786aad24117e789b86528b573c9f0fd23e58bf90a9527. 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/1a069abb-b9de-48f1-94ff-7fe7f6ab34d6.json and https://artists.proofprofile.net/proofs/artist/1a069abb-b9de-48f1-94ff-7fe7f6ab34d6.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 0xdefefc4710714e655060c73214a523519ce5eaa5738d6488b35778cfdc9b62d5. 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/CACWV2398700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61137472aea59c11eb9d01700a89a1cce524d4e1938948f71b2ae1102f908d69. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/CACWV2399051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcbfda9802ad4bbea0e0cd0540ab886f9a58b1d7929a1bb4d549d239c4e1851e. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/CACWV2399092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa14fa9575b006a88d2c45c691a20a7f2666208f5ca50a7c45aa072893073e89b. 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/CACWV2399089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa837fd24b8f18cbaf0836a0ae000d865c082b462992b6d158f1d8a36da48f8af. 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/CACWV2399091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec4df8707bf747b7cb594c3ed1c63c0df4adedfdff887a7afcef3d695cc6df3b. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/CACWV2399090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a87e8bf51a3bca3c414dad3d57f5d44fad5ae57b269fa9ad1d06bdc015c8b9e. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T21:34:30Z), 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/CACWV2399082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24e3a9932f00a020a0615da26675b476f6295ee2ef9f69a5e637cf5fa15cbcf1. 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/CACWV2399086.
La Cautiva Julia Llanos y Dora Echeverría
Cuestión De Indios y La Fuga De Un Cautivo (Pt 1)
Cuestión De Indios y La Fuga De Un Cautivo (Pt 2)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9386a37b101d9f5d1f8138798de2d2253b0950077caedaaabecb4bef33426af8. Chain 2 (Bitcoin): anchored in block 958397 (2026-07-17T10:29:45Z), 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/ARF220602493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dee3ce1527e0de5734b55375ff0e5da44ab0f8865da8fcca2352a1606738054. Chain 2 (Bitcoin): anchored in block 958697 (2026-07-19T07:58:24Z), 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/ARF220602494.
"Juan Nadie" Vida y Muerte De Un Compadre Pt 1
"Juan Nadie" Vida y Muerte De Un Compadre, Pt. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ddac0f0a725907de9ce968957e34ffcd22e584dff1e5f605e6c346ace81623f. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QZNJX2089944.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70c3dacf618676f2b0b204c22992699974bffcfeb9a4b95986e01d5abeb67073. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T21:07:54Z), 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/QZNJX2089952.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f46ae7769d342f2924f6e7b52e1a31f11becc9bf0783000ae22283faab9c9ec. Chain 2 (Bitcoin): anchored in block 957653 (2026-07-12T04:35:02Z), 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/QZHZ42162661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc19a5edac1f75602f1ba93a292fb70e45bf75cd201ccaaee15903d4e4d65cba. Chain 2 (Bitcoin): anchored in block 958397 (2026-07-17T10:29:45Z), 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/QZHZ42162665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12f0ab789efe4e4d0b652c4ede0aa184ec648df010a73aa48bda5a5cfc93d304. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QZHZ42162672.