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 0x6f547714afa55cc2b451a81a029d47308e1fda92fb88d987b1fded9daa4416da. 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/14390ecd-8147-4299-95c1-88b68d1aa294.json and https://artists.proofprofile.net/proofs/artist/14390ecd-8147-4299-95c1-88b68d1aa294.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 0x5e0919789c4a7db6499d7b146b254f6c30692b963cb69c5f60e0843e35bf1832. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QZ7R41952649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x776581c0e896e76c9bc0c58b6c892486a5f262039331a46032938eb8b4a4006f. 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/FRX201700373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b05cf58e383006a92ee80f1310d6eaa162084064b3be5161ff249dc1c1db5fe. 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/QM6N21779779.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca75835c37c2b3d5d305ab1751eeda0039fe3dae1311ad0b1f636e3126c1b42c. 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/TCACL1615626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6364f8d10ed983e1f4b2f04aba8b5e9aecd1d9951542c853066ac0e69022fc6. 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/TCACL1617914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda84fca49b6bddee0673a64dfa700418c7e8e6ef4f5be38cc6621f774b9a474f. 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/TCACL1615579.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x428a2be95162b292980e215b197ddacc82be5d337f77f991ac5199dc6b091a90. 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/TCACL1614153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2a5dd5f0ab89e8061aab8935cf13cb38024ed5f3af9788893994c1358417fbe. 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/TCACK1576611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a138bbb56c545b3a337a21f7b9ea26842949bdb624f2a5e94976fa8a2499f0c. 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/TCACK1576587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0912124f8a538c1663070b55a2b0f34134c802547c4f47055b2a7d48c7452ae. 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/TCACK1576640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x374b7ee52f53e069e7bff9b0943e23462b709c46c12ed2256498cc4e072df09d. 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/TCACK1576585.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d73662ba51abdbd859cf2fb959edc0d62a5cc07def47de027f9ce9e115f44eb. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/TCACK1563252.
Somos Diferentes (Remix) [feat. Randy, Franco el Gorila & Myzta] - Single
Somos Diferentes (Remix) [feat. Randy, Franco el Gorila & Myzta]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaed70a45f5e04b45f58937fe5510bb52e83b4bfca1476a121b20f3ec4f21d129. 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/USASN1500196.
Mi Chulita (feat. Franco "El Gorila") - Single
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2a353acdb4a6ad2d3454410279b004b61aa840ebb74a881a312f588b6037252. 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/USASN1403251.
A Tu Disposición (Remix) [feat. Ñejo & Ñengo Flow] - Single
A Tu Disposición (Remix) [feat. Ñejo & Ñengo Flow]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bd5d55c2f9f0246e413a82679921b3b18230651cc8bba6164b594fbcb996aac. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USASN1403073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18f8208c7c86b1d12abbca0e8dcdef43994381766e95689d971d0325f133a0af. 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/USASN1402883.
Somos Diferentes (feat. Dj Luian) :Single
Suelten Pistolas (feat. Cosculluela & Jowell & Randy) - Single
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e510558a26e637ad665da3fe38c4060eb0e325be57b1eeccdc91f3107b8f67c. 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/USASN1401595.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90ce7b9dd7c074b3fcb709b1a6aeca508b2491013b2d64342a8cec3373ae23b7. 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/ES71G1417942.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe80533a580e071fdc8ae213c6c6d805b7ac7339fa88efd69a60bb709c3cde93f. 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/USASN1402963.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51c8299892ef145ab4655efabacc9ce1f4d057c73b0e991e28cf5349c751cf2e. 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/QM6P42076850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c8b3c9417ccf01278ec87708b93b9736297a3c98438b88b75134c5fa182e45a. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QM6MZ1979176.
Que Le Den (Remix) [feat. Guelo Star, Tony Lenta, Galante, Juno & Geda]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb247efb0e7fd38ba46281ce20084233a68d3607e9f6c157cc6bdc21cae7656b. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/QM7AK1400007.
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