Sonido Cardenal - La Guardia Albi-Roja Sur
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 0x1f1275931b864bd2d95a86f261ba404bf80a2f463d20e112ed3bb37025cbb4ca. 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/2f59313f-7928-4b03-b039-5ac7ab34cb76.json and https://artists.proofprofile.net/proofs/artist/2f59313f-7928-4b03-b039-5ac7ab34cb76.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 0xe8dba78c4e86048f3dcf448b953b55bb1d9553968b62bdbf6e948167880e64db. Chain 2 (Bitcoin): anchored in block 958498 (2026-07-18T04:54:58Z), 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/QZFZ22552040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ee1202e5ad52df771158655214298f6ea52275beec6314bf2fd56522035792b. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QZFZ22552041.
Rojo Hasta Morir/Yo Te Quiero Ver Campeón
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2df1d0786f109690f0edc4f273f7b36ea9deb8fd6d026b6fcb0b50dd4ceb02a4. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/QZFZ22552043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b96433d6dc011e9ddbbb1fc20d1cb49c2af7eaa128fdb1e40d4601a1a5a7a3d. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/QZFZ22552044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75b5b8bea14ff741baabff15f6c7e671ad2a6093b4a1431617b0d89d973e1cc0. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:03:38Z), 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/QZFZ22552045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a89329cdc84f3f9a285eba2a5658bb0bc1d9cd44d459f063e726fc25c8313cb. 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/QZFZ22552046.
Siempre Con El León/La Banda Del Primer Campeón
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1992b925eee53ab6dae3acf072c70da0e611188f6f01d2b8b132fde9ec041d73. 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/QZFZ22552048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafd927c0ec44609bab19fa8d37a8eb338ccd613006a383899d488cad8ae7a9b3. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/QZFZ22552049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50f50f7074c6b15cc48264cff2414b6a0486da8430a30f9515dbe4a7157f29e0. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-19T22:50:27Z), 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/QZFZ22552052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb561bf23d6b73c89bbe8c821eca5428b8b246eeac691edfa4048963bf6aafc78. Chain 2 (Bitcoin): anchored in block 958355 (2026-07-17T03:11:50Z), 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/QZHN62550033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe22229d78a52f5f657d619749c828cde06010a1f2e1b10b829b84c3c813e3d50. Chain 2 (Bitcoin): anchored in block 957761 (2026-07-12T21:55:15Z), 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/QZHN62550036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcca11c0822678f01b3fbb1d9b19e7fb83ae5e00c3174d31954d0b31242879db7. Chain 2 (Bitcoin): anchored in block 958083 (2026-07-15T01:50:31Z), 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/QZHN62550042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c11a8b568f1cdc208d5daf0107f3489c710685b81dd28440956c6252a22b06f. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T23:50:11Z), 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/QZHN62550044.