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 0x15544de7c8c54899ec7cab0649c73c8281e95264a3dfc2f206c03a66a5ac1f6f. 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/67e5b65f-fd6e-41cd-a2d1-3a2fa1b3f6e6.json and https://artists.proofprofile.net/proofs/artist/67e5b65f-fd6e-41cd-a2d1-3a2fa1b3f6e6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Rap Chileno el Sur Es Hardcore Godlevel Enfermos del Rap
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 0xbe3a48d6cd1daf145413175fbc599bfe61b68851ae1e0204520beebf8709e0b9. 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/TCACH1535389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa393478cfd9c92e5d940d901fb723932e31a950ea4755b85aa0ffd51400bf2e4. 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/TCACH1536596.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1849609f83f13456ab31b991806213ee22a18df014120fef9fb0d97a12e0b0f. 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/USHM22325479.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb57aff04e06c9c8650f0cd2432b2ff9ae4929df8cd1c211f5f9e39bec15b232. 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/TCACR1607839.
A Llegado la Peeña (feat. Bruto Chr, Omega El Ctm, Jack Dee, Massibo, Byrone, Don Crueldad & Mc Chileno)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0f2d6233e06c77964811f08d9673ebb27c8815b018558d127f8ca63ba37f626. 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/TCACK1530646.
La Combinacion Perfecta (feat. Leviatan, Omega El Ctm & Bruto Chr)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc91d81bdde9a66404e0db9f3f44bd0f609294aaf11b3a6dbb953463152724a00. 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/TCACK1530651.
Manos Inquietas (feat. Fantomas, Bruto Chr & Jack Dee)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80284c988777d3fb4ece6156c32b24222a88c5d92304d23fea93f00b1fa1ff6f. 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/TCACK1530670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24a36b7c3bfd3db721a4cdc4e3a4f236256d5009a11d8b2ec3a998079e22755d. 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/TCACK1530672.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76596c27da10f49b3af006436111bfc1dcb077f33f5dc2ef37fb2b0183d78b75. 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/TCACK1530676.
Competencia (feat. Leviatan, Omega El Ctm, Don Crueldad & Bruto Chr)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb329a3f289cabcdb92455ad3776f52e6f4b8ac9c324d87746178db54b3630e9. 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/TCACK1530684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9da9f69f6a7d98b629890b5c299860862a9ce380d76b531387183bab9929cad7. 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/TCACK1530687.
Primos del Rap (feat. Rayne, Bruto Chr & Mc Chileno)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5823c728a618274c1d868459b9959d565d9931be87020131041b3fd815ca9d0. 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/TCACK1530689.
Fallaos del Chape (feat. Bruto Chr, Massibo & Don Crueldad)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74ecf2db084e14f3203c0d53c9b45c06188368463ff6b6711a2886b6d567c96e. 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/TCACK1530690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x434e9e91a6661f3f7b6674ef1e91a5ed01ddb5fdba01933390d52369741324be. 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/TCACK1530691.
Vomitando Sobre un Beat (feat. Mc Chileno, Rayne & Bruto Chr)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1df57cec6cc61bac6daca1588e79184e63f91e98f424157b153e3c56001bfec. 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/TCACK1530692.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b0b800225557503e81163f65013ba201a40b2a810e4328452ffe503b18c8cdb. 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/TCACK1530693.
Matate (feat. Kroys, Bruto Chr & Massibo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16706d6a80bf3e34b89d61ee3dcd43864923cdf393cd17d80229371675698b11. 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/TCACK1530694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ca2b09fd06148d048e3bebb815a144909359f74193f5c853af299998887302e. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/QZNJV2009438.
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
Insensible Tipo Pesadilla (feat. Bruto Chr)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x017f1d04c6f6f816aa0082cf53f200c544a4598d8c16eb75343bd79aae2ae4a2. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T14:55:56Z), 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/TCACK1530700.