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 0x2abfcad3fb2d6aec2e5b9e8435ed094ced5b59f4dfdcf65230df7749f02940b9. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1d7a1cd8-6455-41f2-94a0-ef9abd6a9dd5.json and https://artists.proofprofile.net/proofs/artist/1d7a1cd8-6455-41f2-94a0-ef9abd6a9dd5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Aquella Despedida - Base de Rap Romántico
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 0x640cbbc7f33a9608f37eb7fa6b00987adce3c4560cabd35c20f44dbec56a8523. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/GBMA21809949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26cd0cb969df8a66881c2d2747b888bfb7c14340c8aeda640eb35302e31d2a2d. Chain 2 (Bitcoin): anchored in block 958504 (2026-07-18T05:41:32Z), 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/GBMA21809958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0cf4259565077064d9db0ecfd8bdb14e03ea9a6a01939baeefa1cac8f6698b5. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/GBMA21810039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a559f61f161e0ebba0eab566d02e8d162212cc6c5444239b55e959c7abc0996. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/GBMA21810052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6eb742de12484a8cdf0772f2c9aa0e2ff13e77369e3e82bea758a96f7a559bf2. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T04:51:34Z), 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/GBMA21810121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7155b2903956c2a1c509cf51f8fbea096e89a73ba5527d6e6147f74671fd78d. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/GBMA21810143.
Lo Que Prometimos - Base de Rap Romántico
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5a65728b24b1a690d34aaa81c43ea6c55a56b0c6036386d5eae8415adfae9a6. Chain 2 (Bitcoin): anchored in block 958498 (2026-07-18T04:54:58Z), 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/GBMA21809889.
The Cypher Deffect - Instrumental Hip Hop, Rap
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3ba7a77a9e21e8c90b2fd592236effb2796471a9802cb44cec2cee98eb23782. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/GBMA21817711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d9cebe96e81244525a782b4a6cc01ee86f029da65a51ba6c8d81efcf4d2c356. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/GBMA21819538.
Sensible (Instrumentales de Rap Romantico)
Pista de Rap para Improvisar - Instrumental de Rap
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc6869f3a76a3f72e853140adea0d37ebe6953b95557561a18a596f8b59b0e2a. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-16T00:36:50Z), 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/GBMA21824769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x996fabe06e83c4c78fa00e0bf697020e70b05b417619fe78fb8210afeb8d235e. 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/GBMA21924462.
Sueño, pesadilla o realidad (Instrumentales)
Mi pasatiempo es pensar en ti - Instrumental de rap
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf968c739b59d70f83f749e5390c7c5415cb679c4d6e13fc477bf0803fe91aa4. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/GBMA21927534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34999734319dde0ca0c1f9efcf2e6d818b2783ec2ea3e42d4ae5ad3e7f539e51. Chain 2 (Bitcoin): anchored in block 958834 (2026-07-20T05:55:47Z), 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/GBMA21933068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17c268dd4d673fe46d6ed9a24db4852de736b09819cfdc37a932f59098367bab. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/GBMA21933069.
Relaxation room (Lofi Beats, Hip Hop Instrumental)
Hip Hop Instrumentals (Lofi Relax Beats)
Street Fight / Rap Instrumentals, Hip Hop Underground
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fb56175d1bd7aa5091d8874786b7ad824d72c3e511911c98af491cbcd2dcf7b. 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/BRFJI2200003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6571098f4e10894df590072ecc0272c1e3405c7181a1d4194e6cd20b50c5d68a. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/QM6N22190364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x665a4d7d2055209ccb5f0388b76d6554c4f870c641320eee978ee8af735102eb. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QM6N22190370.
Zico, Gabigol Artilheiro, Adriano Imperador
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe4723313b1a1175b9b173fbc0641c5024add57f44e23abb93ecc3cd505f7d58. 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/QZTB62374441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ce98d24bae4eb4783155b2bbf79a85dc5d6df0fec100532a325db1adab2156b. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZWFL2310023.
Transiciones al Crepúsculo - Instrumentals Hip Hop Lofi
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x210aa0d872d39774d1a7168b2cd7a537180aa1306185c99e35368f65fe8a486e. 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/BRFJI2500005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e3e8476e3227262b85a938d36de6017a9053b95a5b1ac35c33afc11cfbbb481. 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/BRFJI2500007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x501adda73eb62ce65e57d03ad99cf29df34da1b1bc99c51d9d2362f5ce5ab4d1. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T05:50:22Z), 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/BRFJI2500013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93e3ac11c5902b21b87d65d8bd7c81094ff7a80c41bebb30aae9ec5fb07ff339. 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/UKXN22290738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef997e1e95ad48c4a8bccc01772039a4ebf69e30f583add1ba87f7a9a1610079. 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/UKXN22275660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf05afe203e5db6a114bbacb15dc05218aca1b8bd400a5ec48e7f8581789db512. 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/UKXN22265071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff4d4661a658471313617b8d344ef87ab75fa8cec429d1b554a89b3a6a109bbe. 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/BRUM71803562.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff4d4661a658471313617b8d344ef87ab75fa8cec429d1b554a89b3a6a109bbe. 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/BRUM71803562.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71a64c576dcb4e15d5c3978e0d57393a14cbeadee0a557b499f9be816a39ba82. 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/BRFJI2300002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeeba27138e2f6bb88b92ae533585f2cc954c1eca83e7a5039c37b9be7fe9e23c. 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/BRFJI2300010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x774a8c59379b71ca6a7f7f5ad4a7e74b9bfc4933118f74a58c2eea6ee77568e7. 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/BRFJI2300005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02df62904d4431ae689885182dd4a54eb389d3f11b63ca4ee2bfe9589d0d9683. 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/BRFJI2500004.
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
Um Dia Lindo Desse 2 (Gisele É Minha Avó)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba9cbf325d40df09f8627e61ac8664fcc2074f4691e119a2c7593d3aaf7b0f7a. 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/BRFJI2300011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2de99a7821fff395ad294faf313141deb1f57d3c4b12eef90d13f50065a86668. Chain 2 (Bitcoin): anchored in block 960241 (2026-07-30T09:58:01Z), 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/BRFJI2300003.