Agrupación Musical María Stma. de los Dolores
{"copyright_id":"0x3576b94321ff914c3667da38b000a2b6b8cef11aec5af5af398eddb5f0a1acc0","name":"Agrupación Musical María Stma. de los Dolores","registered_at":"2026-06-11T13:45:18Z","symbol":"NIM0038811","token_address":"0x49ca76b194bcf4d4bca70c2c59f7ba672cb61d37","type":"artist","uuid":"1dc34915-6720-4508-a596-9b20f5c5c0e0"}
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 0x3576b94321ff914c3667da38b000a2b6b8cef11aec5af5af398eddb5f0a1acc0. 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/1dc34915-6720-4508-a596-9b20f5c5c0e0.json and https://artists.proofprofile.net/proofs/artist/1dc34915-6720-4508-a596-9b20f5c5c0e0.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 0xe0e3f29d4b8525cce5da399d83cebbc32c527b452e264b0405dfacf4b130dafd. 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/ES18B2200581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53f966557b09fdf36ca1649c7bc3aa05323d9ef4e89c96be742dc87daffd0059. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/ES18B2200585.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x084a005091b7038145d58fa6b9767658765e45d5cc71850bb21ddb21c6c0a332. 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/ES18B2200586.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9986c63bcf1e0a8fd2cceb874998f1dc991a90c0ed89f1995f60b4e09cbd8151. 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/ES18B2200588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3954504d6b3f94156ba66a3a785bd84b17511d138faa0d955b794274628c1a8. 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/ES18B2200589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16292167c3fbb5e5204b68eab6d6393509c02dcd5790fa3744b32406c5cfadb3. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/ES18B2200591.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f8f7ed1ade705fa7aea9cf61fc7ab0094b2dc27d5c23410640c899f3201f75d. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/ES18B2200582.
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 0x0c5b5259300ac967d9f55b76dcb130467ce5612cdff7afb4537ed13c2475de01. 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/ES18B2200583.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94ec73f05597ed1d7d115a342779c5b23fe73dfecf7d2dcd4173829ce15882dc. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/ES18B2200584.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8288a065e7188ca1d7ef530d2d16714c61c371964df5692d0cf2b8615fa5a9db. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/ES18B2200587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb2c965f044d6a823cc5e9d4746015377c75d99437c98a4003b1b7cdc88da727. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/ES18B2200590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11614f1a4a17f2ec3fdac4d30646da37ade388078ba84d1202273f10c3c74461. 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/ES18B2200592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f831a53bc0a7122457b35e21ae76c4ff512f34086fcb414cfad958403066f8a. Chain 2 (Bitcoin): anchored in block 960157 (2026-07-29T22:12:10Z), 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/ES18B2200593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6db9bce42d6522c051c170ffe6c1b9ed4fd0d17f103a85ddf2924b1bc6ef2a8. Chain 2 (Bitcoin): anchored in block 960349 (2026-07-31T05:23:41Z), 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/ES18B2200594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4c1e154a6ce4868d7611922db6932b19c8013aecbfef268db1234c7e30c9e02. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/ES18B2200595.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x306122bd7a4a3dc782ffc02149052399aab70a45f6b950bdf4ec65b284ec0b04. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/ES18B2200596.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x713d323537cc9a33686181a50a4354e0f80ce69b707a99069238a4013726a55f. Chain 2 (Bitcoin): anchored in block 960185 (2026-07-30T01:32:48Z), 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/ES18B2200597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x510290aea7de398bf308c2f5f012980a7ea4d455f58e9798f453043d59a3f202. 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/ES18B1901535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69185ea6a7e87d3d298a8249ca24b601f21e32d7c25767e94984dd5e7a5bd2f4. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/ES18B1901536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a1efbe962c2229ad706033d4c91e54fb01988972398e4865137be39f8136ca1. 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/ES18B1901537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ed7ad8e88176c593efe4d1f7e4fa97ae6580a3574e245a371225d9a6639777e. 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/ES18B1901540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf29784751f313802179d8c9386f3c58fd77994e955bc95d46dcf643aa64c6dd3. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/ES18B1901541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x240944c7f05f4862f6a665a9aad784df8a6c4f5b70a2583ab8c6b71fde668c16. 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/ES18B1901543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7eb3a851c6dc60dbc607b914f981b1139e5c660cfc2b4ae6f6fe5432aa5f03d6. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/ES18B1901534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc94650725038faa57118bddf7d3ae47ecab6cc39c49028673eecf83509bc3eec. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/ES18B1901538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5abaade4021570fc20038dcf6591d08d176fcefbe94dd93793967d73d775902b. 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/ES18B2003760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6f814ea0265eceed0406bf8e7fbd659b35bc9a03b0042322026d5abc00dc61d. 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/ES18B2003761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8eb343e19e5ae42763264ecf1b9ac9019a2ced90ff0a6d0f411319f0c9d6c436. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/ES18B2003769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3183cb6cc1a50192efbb86a13c6d14fe1ee59a91b14d654edcf4288ef7937bbf. 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/ES18B2003772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x275ce37392467c2a64fe737eed491ba954a3c7463ed56f53eecd4e38e09895f5. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/ES18B2003763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ac3fb545588db85aaeee9f2db790a9ab84cfd64bba8aae929e5b52b94a70e9d. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/ES18B2003764.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf60c5c941f0eb4f546f2f3b9ba190b5786aefbc2c188d62007cdd03fc3e37e00. Chain 2 (Bitcoin): anchored in block 960314 (2026-07-30T21:00:46Z), 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/ES18B2003766.