Capella de Ministrers is an early music group formed in 1987 in Valencia, Spain, by Carles Magraner. Valencian music is prominent in its repertoire. Work Capella de Ministrers was formed in 1987 in V
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 0x089e4a68cca1723bd9591c533e3fa915fedc0e3b8c121489bcb631d0e9b5ea32. 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/84d17b31-800a-46f9-9c05-c7a98c604b10.json and https://artists.proofprofile.net/proofs/artist/84d17b31-800a-46f9-9c05-c7a98c604b10.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 0xa9d923717a597a1f55ff203a9d44064334d4febe3fb2dffd98cacafa734d7758. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USA561239980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2318b64cfb5e4deef64b99112fce3be3980ccb27213ded28ace6fb772ec945b1. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/USA561239948.
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 0x19c05e7a55bf4cb63f5724791a05fb692076e0268eb249574ef29a7dd535f24a. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/USA561411661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde4cda3f05628383644e54635a4cc49872b7b21828b1e918b8823eb213ba4a32. 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/USA561411663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2be775a8ee119d7969a7d63d150c84e19e3eafcdfa0db48cefc473a22923e33. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USA561411666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3383f5524a87e1fb4c2a4c181ead89415bef0b83938a507691ba3823c5a13f1b. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/USA561411669.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05f259aece7791f91fecdc741e3356494836d3a62f6306639602f0f3ca09b910. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/USA561411656.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51bbbae78694013a5f30aef6893614f3427bdf5c7f5795dd6d9e13b7da8ab4fa. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/USA561411657.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd50ff96004e0848e7c73063842a17ed0947faaf9253ce13ae37f4332de6a3e74. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/USA561411658.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01b47cec1cba901da39312756b13f00c4ddf34f380e7027e5775eac410dde3c5. 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/USA561411659.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb17f0e08d2b60d79bbdd3f9a360b1c5baa7a40066b3e4998fbd292a11b561a1a. Chain 2 (Bitcoin): anchored in block 960489 (2026-08-01T00:40:43Z), 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/USA561411660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2acfa55e6f174102cc5516d8e1050f6b3b0ae4b8b2702050a2352e7b9db7f4a3. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/USA561411662.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce10bd9878810c0375ca2242816228db8b5e5d324187873449b7280664f74cba. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/USA561411664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52c3c22c6655c0a529a51d72baa1c9405d245f3473b2cbbcb74259cf8b672c8f. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/USA561411665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47161dab760d6e496b5055b5ee5ea6fcd69a9e3d57acd5e6f8f7ddffe6530041. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/USA561411667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bb521f6c8752746700104be85e83d1c156a830ee7114fbb17aabd1b2803bbfb. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/USA561411668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88ea3e0d9bf2f8f95bd269054143ffb83a75f3635912cc5fe25477b085d03050. Chain 2 (Bitcoin): anchored in block 960404 (2026-07-31T13:06:57Z), 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/USA561411671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdeac14079591c3a8cf6938718bbd54e79c686b7b9c53bcd49c491d022091e0b0. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/USA561411672.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28045ed39ca75e061b7ae615ca0c2b692fe8b3bb2a7b9906fea94e4ee06ffd0a. Chain 2 (Bitcoin): anchored in block 960389 (2026-07-31T10:20:10Z), 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/USA561411673.