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 0x9e51dc517f84636fb2f502ecdb0d560af04efd3106ca276654ae336468617b39. 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/c769fa59-1303-4d4f-b0d6-fbeb331d9db0.json and https://artists.proofprofile.net/proofs/artist/c769fa59-1303-4d4f-b0d6-fbeb331d9db0.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 0x857be5ef8776d2510207cb1c5dffa164b351a7a377088b43cf22fcdd3f93e4af. Chain 2 (Bitcoin): anchored in block 957055 (2026-07-21T23:36:04Z), 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/BK4DA2405274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b567a59a143505a8dd043d0dc9000668e1b9fd53a30f542b7f714e92e13b841. 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/QZ7R42556263.
Banana (feat. Jory Boy, Three Seven Music & The Chosen Few)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4d666d08017bcf4c32b5ee73f6d54ea975e8055fffddaa3ef2f646d8b957184. 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/US38Y2425320.
Agresividad (feat. Boy Wonder CF, The Chosen Few & Three Seven Music)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30eb09ea7253e0cc2ebaae096ba7f0cf74270e97160702e9b5f2cdf4620a2ad8. 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/US38Y2431412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7957b3763a90bf3a8f93ad206f0162c344de7ab8fd26d423092981515b12d3f9. 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/QZK6F2543062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf82e05bcea9d65ba779ff0f2bd2b0665f6ee070dc98b76870e64d7a29eeff77. 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/US38Y2520655.
Mueve El Cu!! (feat. The Chosen Few & Three Seven Music)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b06240cd215b108fefd8387daea43a98dbf6ddd41f416017fa973c6e83135c2. 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/BK4DA2502562.
Limpiecito (feat. The Chosen Few & Three Seven Music)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f2608a918a1c7a6d7b673870d5d0f204320206851ea1f35628bdc71ce2ce349. 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/US38Y2434748.
Dime (feat. Three Seven Music & The Chosen Few)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30468e107ac37b38976c41a6083bea29ec2811ed64a25dfaee63713fd8b4658b. 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/US38Y2419656.
Bien Happy (feat. Three Seven Music & The Chosen Few)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cd26fe89cf5876113e88ed2a6d7139de5eb485fc8dacb9f7dbdbf2f9a79e095. 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/US38Y2426930.
Descarada (feat. Three Seven Music & The Chosen Few)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05bcc524315222148c046dcff1b358e12a9149a98d97e29bf0dd7dfec3877820. 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/US38Y2426707.
Mirame (feat. Three Seven Music & The Chosen Few)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01ca189ceb699c1114e07b3406d26ff39eeb2e0bd7f22670cfbbe7d87d3aaf25. 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/US38Y2422524.
Travesura (feat. Divino, Lenny Santos, Three Seven Music & The Chosen Few)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6988985862b909e4ef17ed05c06cfc4cf7c29c8fe78c13a761f2936bc3df1d40. 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/US38Y2419654.
Quiero Fiesta (feat. Kiko el Crazy, Three Seven Music, The Chosen Few)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1ca61cb0ecf08ed88b63a02d23846d5fac1441e71b358854ddfd29615ebc497. 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/US38Y2417534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf03bb1012259f7a2d27bbd4d92943101102bffc8e3873502f1b7fee28ff51fb. 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/BK4DA2401994.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1792a5c7b32e52c6f1f5acc8ca9ded6112ca44487fcab0b3243894c6d8ef4a98. 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/BK4DA2401978.