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 0x659d32686fdd4542be2f39852a39d1dfb2054d668bb5fc5ebf88b732c949ba5d. 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/92b6dfbb-1f4f-44f1-9d16-ac92c3146a4b.json and https://artists.proofprofile.net/proofs/artist/92b6dfbb-1f4f-44f1-9d16-ac92c3146a4b.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 0x71d6fc8864b0d3f9185289a21a9d6af5a3de7deeef2d56b72133f244cceeafda. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/ES8621600224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcee945c379ca95bc8b6f8c6177ad3a04d8ed5f62110b56839e503aea0b470f5. 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/QZW9K2342598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc40ed497e02790728cc9006924a77c921db47e4f856eb3b1a0105cf83dcd5ffb. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/QZTPX2356973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec9f4e6e15484d679f1490e1e1def4cc6ebf20af41c6f7625586d94c8d450b28. 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/FR10S1641976.
Fuga Inspiración (feat. Big Mancilla, Benny Bajo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4ba401feaa1acc628c30b05ef2ccf26bb77658958250ada71f8600890bcb2ff. 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/FR96X1511498.
Dem Talk Bout War (feat. Big Mancilla & Blaze M)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x874aeeba6cd3e186359fd61fd7c7693d6e3bc17623dc664119efe77216fa85cd. 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/FR2X41642702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed30ee752e7edd37417003871e491969238547728898867e5715a5770ef0e401. 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/CA5KR1511191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21efd66f0806c471d5b20a4783b0b76ad7ddb4760583db981566d35cfe2d55e9. 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/QZHZ31901375.
Próximo Menguante (feat. Big Mancilla) [Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb375fd568e1a89b5696574ab5d2e2c1a4f4c2d1d6b58c972e4a4cb86811e05c. 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/FR2X41731264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04af76128d317dd9c5226b043aa19204eed22cf9da9e35dd9fba7c8749f9aa23. Chain 2 (Bitcoin): anchored in block 960166 (2026-07-29T23:39:29Z), 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/QMPKX1626532.
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 0xdd53c6fe91bffa09c5cc9b8f6a6a2a6f10f19eaf5916c575328a4ebe4563b7e2. Chain 2 (Bitcoin): anchored in block 960276 (2026-07-30T16:01:17Z), 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/USCGJ1896405.
El Tiki (feat. Big Mancilla) - BrainDead Remix
El Tiki (feat. Big Mancilla) [BrainDead Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6573904c9e903eccc50e4055eee58923ef3de92144431b8c872d0579a4919b6. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/FR2X41652810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35b262f90f2f01b5a6382ce2b2fe059577d897f09f9a09306aefe482d0ab81af. Chain 2 (Bitcoin): anchored in block 960422 (2026-07-31T15:27:29Z), 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/US7VG1912697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f5ab1c2b6a02245247a906d4b579deb8d6c122c871040810f8af1524342e6c1. 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/COAKK2000079.