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 0xe8f7f80d16d6bcf1e210765c37aa91705d434f992f14719d39f0822da1950068. 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/50c618b9-baca-457d-a467-0368ce37f53d.json and https://artists.proofprofile.net/proofs/artist/50c618b9-baca-457d-a467-0368ce37f53d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Welcome to the Sensual Hip Hop - Cromo X
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 0x46679fd7cbdf9345d72a0ddd85f4ddc011ce66c8a4655afb345c584efc833ce3. 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/QM6N21572879.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6102d2f0f7eba47589065a789da28ca2c7f677a6f2f445fa2fe0b7c3be5dc2f5. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USLZJ2002775.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09c2329b25e0ae7dd0a32067aca3a3d06e65a7257d949bc5fc530b3f2aec9671. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:17:32Z), 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/QZWDD2270036.
Dime Baby (Remix) [feat. Nengo Flow, Jory Boy, Poeta Callejero, Secreto, Cromo X & Chiko Swagg]
Boy Wonder Presents Chosen Few Urbano Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9c53c89bbefda4b87737c517955d4b5506bd66f4fdbc045a93cab6fa1982618. 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/USASN1502496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d44bcd93ee77a26b2384c17766758ca307e0cc7a13d0e503fd466db08236cb5. 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/USLZJ2174826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbb5e6c97fe302ed08fdd6a816c5e08bf5992d5b5dd020c730189020b2d704f1. 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/QZES62070051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84c3dbbf1a1b943179732f948a0d30734ae7572d1190f9203cba63c501f6229e. 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/GBRKQ2277671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c0c2a4b52ce1f0a56a1d1332b5c060539ee18248a89a78c04436d16aba17f4e. 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/USLZJ2294991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6fb1d2dbe0dae198ba6cd2cc1ae40e5473802d487f885ffbdf5536776e01002. 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/QMBZ91588008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x900aeb9a28262f18bb95d75a5275c5f9d6dcac463b776396045035f068e83c99. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/GBWUL2091630.
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 0x7f1628a19e312769f858b65785c4cab37d0913dc942e13ee34b159ca3bfd9780. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/BK4DA2412673.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20b3e02d14f5b99cefa8967bf3d624e2dfe74bd52ebffa14a10051a2ba3d4399. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/QMHUY1650637.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7db2d92b0617f2f5522387d757cfbf0f8999d3387b53b5acd897e9ea34a5049. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/ES5991200603.
Contigo Hasta El Fin (feat. P1 & Cromo X)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6109118ddfa00b371f220d83b254256f52fe4def863fdf30aee75b9ef8ee67f9. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/TCADG1727708.
Contigo Soy Feliz (feat. DJ Sammy & Cromo X)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd123ab8500ba6715a7d9ea5cbdb99a3c2dc016095e3fd9c2623fde594dbf5513. 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/TCACP1606173.