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 0xc6932b29ca90fbaf1c5480efaaa413c615b28ec1612d0b14d7f98a91c5f8520a. 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/d70070de-db97-488e-93f1-78765baa688b.json and https://artists.proofprofile.net/proofs/artist/d70070de-db97-488e-93f1-78765baa688b.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 0xb22edbddf6748ff22125d41a9cdda0a051c44bc11ac0dd9ffd2e837215867df0. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:37:30Z), 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/QZDA82173909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90dd06811ddfa6d0edf7045956e7a711a2d1c58e17bbfda015b2a1e42a5f92ef. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QZHN52166419.
Corridones De La Vieja Escuela, Vol. 3 (live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe732004ab17fef863dd83d57f80fed9f5880b84ed98b732f6608ead89a0ad6aa. Chain 2 (Bitcoin): anchored in block 956397 (2026-07-17T03:11:59Z), 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/QZHNA2170118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6b3d2f9edbeeab30353ded6ac82114d3a2b6bc243c71f5df4857f158167b95a. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/QZHNA2170127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9400972a1b5c3133229ecf679e33ca878b25cb45cf5e72960701e60877373b3. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QZFYY2215407.
Corridones De La Vieja Escuela, Vol. 5 (En vivo)
Corridones y Unas Joyas Prestadas (En Vivo Vol.6)
El Corrido De Moy (Pacifico En La Hielera) - En vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d6faaab94604153d2ab9a4360f491d6250e1032dddeacf4084a3bfee49cfeb3. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/QZPLS2240897.
Entre Corridones y Decepciones (En Vivo Vol.8) [En vivo]
Corridones y Canciones En Vivo, Vol. 7 (En vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b225fad913110d8aa291c2184a184a3db1ce42d6f48fbe32516eb46766611bd. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T02:36:18Z), 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/QZK6K2351363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef42562a423ea3abd48d4f94fd242a527a64dce5e25a6700c8e46e3572fe333f. Chain 2 (Bitcoin): anchored in block 958602 (2026-07-18T19:28:16Z), 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/QZNWS2371103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcf56306e53cbf61a7f3e1a9f396a70d3cd6c09e979290a0cf3617b4b10dc353. Chain 2 (Bitcoin): anchored in block 958965 (2026-07-21T04:29:05Z), 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/QZNWS2371107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x630a4372929227a63bcb65be62146f9c8e535070495e17cd2677cb375afaa4fe. 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/QZNWS2371108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67cc459e7185c286b38cf392c3a4c515b9bdbfd9a993e190c858022a885ef3ca. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZNWS2371109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd4a7b931518fc4cf1cf0d6ec657da6a3acbd580116120eefd7679988e5994fa. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/QZNWS2371110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80a35a91276e5cfff2636065ffee9d52998158ca3c27ffe7c2443648c11b5b87. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZNWS2371124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1e47afa9814d0dcffc0b07a53d2d143fc4c310f363ceb2b2085728a9f02b3ff. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QZPLS2441798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x854e43719e43cec668c9c0744149ed4db3a19c07187b73f6cf88fe2f71c645ad. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T20:06:18Z), 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/QZFZ22556674.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8229cf39ccc969be732f6f8556e89ad3203a81e87eb1b6956a8b488f9a41629. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/QZHN62598935.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad0ccceaaa78263e4e4db214835787ca942e9747a37d491b5067267c75a72c6a. 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/QZHN72501398.
Que Buena Amanecida (El Corrido De El Oscar) [Guitarras y Tuba]
Que Buena Amanecida (El Corrido De El Oscar) - Guitarras y Tuba
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x223d58a6a9b901a9bd179661b2310cae4108549ac6a3cfd455d9c5c196b621ef. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZWFJ2520034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9eda2c2d7010eb10291c3da4e02e11b626e1ff96c2a2de9c5afa9c286d6e442. 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/QZZ7U2502214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27f8fb1b77ec90cfbacc957dc60830db6f42cce6fa2d7a0a0ff4cdec15e69a33. Chain 2 (Bitcoin): anchored in block 958865 (2026-07-20T13:03:23Z), 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/QZZ7U2557104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7409a07ebbd3cb2fffe5311e9f74a28f7e550ad9a57ae35b76bed162e76b2505. 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/QT3FA2539195.