Orquesta Popular de Cámara Los Amigos del Chango
{"copyright_id":"0xa99a390c6ca3b303ffa0f646813a20ae15a7c50032c66822aa5090d0f284cdac","name":"Orquesta Popular de Cámara Los Amigos del Chango","registered_at":"2026-06-16T15:47:59Z","symbol":"NIM1099681","token_address":"0xbbcf8cffae0f6cc19caa2abd2a0faa7e53a3d01a","type":"artist","uuid":"4b1caac2-eee3-4b17-82a6-af82be46b8c5"}
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 0xa99a390c6ca3b303ffa0f646813a20ae15a7c50032c66822aa5090d0f284cdac. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4b1caac2-eee3-4b17-82a6-af82be46b8c5.json and https://artists.proofprofile.net/proofs/artist/4b1caac2-eee3-4b17-82a6-af82be46b8c5.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 0x7f1302f8ac659381e1cf8e58505e8c21dbddffc6e8217a8e617c224ef8358209. 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/AR6F41600001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed3c31de69d7d0e57573948f7cf5667afbd4642c592b630bac83aca62012fd8b. 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/AR6F41600003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2629da49d87d303791c852a8f8a3a6e3384f23b3a8bb808d8d101fa6e4f2ab18. 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/AR6F41600004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5affb24fa030ebfe838421eca6060b79bfd63ed8bea883227d4ea9183bc8efea. Chain 2 (Bitcoin): anchored in block 960354 (2026-07-31T05:48:18Z), 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/AR6F41600005.
Cuando Muere el Angelito + Réquiem Del Angelito
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x170dccd4d84ce7c9a4ee2a7351fec2b8c6578de1fb8f47690d3b9ffe58c4f548. 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/AR6F41600006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6248e3881fad0d2de1a25af6142397a5e15ac32106a47632b41569ef66d2346. Chain 2 (Bitcoin): anchored in block 960268 (2026-07-30T14:53:07Z), 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/AR6F41600007.
La Fiesta de San Benito + Why Not and Dino
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e26bb468a308a8a7da902b284c84e00f8816aa748478557ae3d71a49122fdbf. Chain 2 (Bitcoin): anchored in block 960362 (2026-07-31T06:58:00Z), 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/AR6F41600008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x773f226469c7bc2ccdb88d39d1b93b3e1ce2fbd72617bf541b35dc56e68d0313. 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/GX5MX2451061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f4bf10f10994e9990e8211a89579639d76530ca970eae573af305bdb2b919bc. Chain 2 (Bitcoin): anchored in block 960509 (2026-08-01T04:30:37Z), 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/GX5MX2485672.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4dffefffebd2d5bb1275e6d009d322f0f6fa5dd85d14159267e41e22987a5cf. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/GX5MX2413328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2554a9ab215216d9d3db6930a4b9d1e8b23c1e41e60bb6345c5208bcc272fff6. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/GX5MX2421627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcde1cc4213b071916520be55d4782a1a0cd535a62f6c243d782dc898e034a3e1. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), 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/GX5MX2471819.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81fb7a303c9fe9fa91bd00e838e443bb0234f6434c437452ba4471e37ced4e13. 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/GX5MX2444010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45c862cb89e699edc47881fd6ba18d41884cc949ce478a9423a533771bade0a3. 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/GX5MX2474785.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbca0b7cf81dd23aa67c3e588bf7ff83717a5c165a37ad329d8b4a8c41cfeae0f. 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/GX5MX2413827.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x957b06000831610954a53200932d4b35889bfacf34e83ad3c5deabd89d3213a4. 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/GX5MX2489901.