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 0x153b9bed1d0cc2a25eaee10bc6bc8d39317c98120d0d1004f81e5111165fe8cb. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bf4057f0-0655-41b6-8676-33f8e100d611.json and https://artists.proofprofile.net/proofs/artist/bf4057f0-0655-41b6-8676-33f8e100d611.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 0x407d8944dcd38b8ae391f0b6218677a6a2929db79d44b641f3956b831b8c1d46. 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/QMAAK2065756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58dda83511a9445bb755e57b166c8c147916b4b7511ff30fb4058c9c0f95641d. 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/USLQ21300002.
January February (Latin Rascals 12" Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19a531ee5e4b276dd901386938dd2f19af78dde8e45c9fefd3e942991232664e. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-21T16:51:50Z), 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/USLQ21300005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e1536de0ed0618fa83bb0437c923918bfdbfec27bc9efc482a5e48320944383. 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/USLQ21300007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9abab852b67ccfb704cc114b5bb172949753508b3bb548507a367a32cac34ae. 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/USLQ21300008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86cc1560e72952f4b85fe757e6723d711c14291204a09e2b321ea524fe18a5c3. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/USLQ21300009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bb6aefed618b227222cccd5adfb4fd4fb06886893994d7caca29b0b14d367d4. 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/USLQ21300010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x998ab5b7915d33aef1250160dd6cb95827a4e528f8ec495c3eaa1345a7014d49. 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/USLQ21300011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf664b1c6b2b8659f4cc38b9d53b0b8eeee682d1848c08116006ba2af930c38be. 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/USLQ21300012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c6b704d6b5c1e832b00bae76347b8f9146a9e4ce010e0ade690384427171c95. 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/USLQ21300015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa114d4147cb2f321ebb6674bee6dd3f6c62d1a8733c95195f9a41e5b65a95ae7. 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/USLQ21300016.
Freestyle Classic Mega Hits Volume 5 (Continuous Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9384c4c9b8e24a812cdec07ba0829f71e4de6366f896a8073d2414ee5e4d3e40. 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/USLQ21300023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb9d2d40dcd9ffc2f597ab3680878654d4ac192945cbddd9a273830aad814144. 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/USLQ21300013.
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
Don't Let This Feeling End (Freestyle) [feat. Lil Suzy]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bdc9bdbfe742b9bb01de39798848fadcc78e9f9c3d088adbf571b9c0b613a8d. 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/USCGJ1524125.
I Cant Live Without You (Melody) [feat. Angelique]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bcd1a21d761f14ed411b9f8b4708a4e20a1889250781aad0a34b6f232bda22b. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/USCGJ1524126.
Do You Remember (Melody) [feat. Reinaldo Gonzalez]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e445a7f65b6d43c906953e2ba7e09e000b2a272a881c92c8be70b8e6e897cd9. 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/USCGJ1524129.
Alone in the Night (Freestyle) [feat. Reinaldo Gonzalez]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf349497552876caf03c3fd1ded2e1ad4c449cf9aefbd52449aff91d6aa3ae0c8. 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/USCGJ1524130.
Girl You Hear Me Crying (Melody) [feat. Nv]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a429d7ce29700cb5f1e0de065070c278fda3677d5eb921e22a782dd371946be. 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/USCGJ1524134.
No One but You (Freestyle) [feat. Eclipse]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff3923e4ac8c40dcf9229261c62d250ddda3188e9ac57c29be332b220f6a4f0d. 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/USCGJ1524139.
I've Been Loving You (Freestyle) [feat. Reinald-O]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67ca8d47d61a07246ead351317867aa388a26b1b9897d8e62b9c2c31b1ddd5a4. 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/USCGJ1524141.
Take Me in Your Arms Again (Freestyle) [feat. Lil Johanna]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfa6ee068dabae509602a08bd09e7a8bc271faf2dbb434135f2a7bcde932bc70. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/USCGJ1524142.
Come Back to Me (Freestyle) [feat. Edee]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee574210f8e9257da82c6ea331d26f0ba0e1bc64e0e8e0a96745b63f5237c8ac. Chain 2 (Bitcoin): anchored in block 960231 (2026-07-30T08:33:28Z), 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/USCGJ1524143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89a1e9d63947232e4db1f18f9697023d9b78b72254186a0315a37dedeaee4bd1. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/DEZ650810754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5eae015776fb1bed821369fe541d26b0cd4d5e32e2ec27a28596b561edfa2c52. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), 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/DEZ650810751.