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 0xc08f2a8a781b44c47bde013d1a77ac6158d40b111ac89c2a5b9cf8b5c00b8591. 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/fd8a5e79-7290-4466-9073-4788c036ba79.json and https://artists.proofprofile.net/proofs/artist/fd8a5e79-7290-4466-9073-4788c036ba79.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
GTA Cali Cartel (feat. ElMalaFama, Maicol La M, Robin Rouse, Elniko Arias, FineSound Music & Mauro Dembow)
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 0x1a861307a868721e31d9a194a012ae5e78973bc63e7227c1a2ab0ec6bffdfc5d. 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/BK4DA2319103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3697a9eb60089dda1d2e5282aeb4b09afd4e0364bde775834ea13dd0bc804e4. 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/BK4DA2325072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfb5691435e52c6b922aa640a942a24757a60cfe30f1df7583db5725ee2e3e93. 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/USWL12401797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67563a5342ae4268adb53e69c7b57f77524b07b31821b0066d276488cba9de81. 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/QM6N22455074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3714ace0768e036f67cb632b02ddec45404273a9021f44393daa2add3d375f21. 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/QZYFZ2409058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0132a0f9fff06ef8c27c2c6ecdd8e6ca9dd2b28a317b4b0223b4fb126a57f129. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/USLZJ2407121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97d594ebe4b5e65a532b5b87a121666fe98a68b0428e61de5f805f83390a6029. 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/QZZ972312670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x442e5d2ff2720417ec5741856407b5a38d6957606124d834919a0a762b589298. 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/BK4DA2320685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x911bae44c2299ffcb9616b746f436b34f836c415ad4bab88098a66de83a0b51b. 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/COAF42391926.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20bf58f25ecd8e4df9820759921342e1f8a59bca0c4f286c9c774d8a69224138. 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/COAF42390407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf518b29584620179960542db3813a2547b116efc1d2b0a65e42fdecceb631bfd. 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/COAF42292398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52b44d123ff0d88ab821e662bad4b21234440958c86296e17f9d860f6f69faab. 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/COAF42292394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x726f0deec2ce9e9cd05bdc37b5bc4384f67238e1c6985edef06ef18e1acc40bd. 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/USWL12201246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x595345fe77ebbbb5dc3c7783e9e0a5cf93bfe9c80b7c54fefff4b9656a1992ff. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/COAF42291459.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e7eb5c2376917b23fd10433de234bbced54d1ec834f1c16f530e8f1a37dcdd9. 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/TCAGC2258621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x567e8105ddc49d1e43b1e5de769d282e0f5984a1e4ad701d1bb400324c09c1ba. 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/QMDA72142646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5564455901b1a7b001204ed76cb6fe568923d044ab9a4e3cc4a1733cdef68c7a. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T20:57:14Z), 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/USL4R2101252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0853bd2d6b66db898dbc89653a5ab83d26532de3b8c8f45f8d66a2a1fa292d33. 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/USCGH2075942.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5331fecc7a3cc5a6f07e24ccc53fc904d6b85aabff2dde1e35f2f31e5880062f. 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/MXF152401624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe36bcc3d7a7a26a5c2465f4510b751a1de40d30264400646663f59f0be74d75e. 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/USWL12500362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd15b48903966698b3c5eea7f6b6dba6147855a57497f0ad9e6e0282a0af3132. 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/USWL12404121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e6d4b9a9d02e4b08be34dfa54c8cfddd911b0b7646e6757dd8084962a33b1eb. 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/USWL12403783.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x999c50e6d6696e39bfbc41611094f7307fd186e091b608fa57fcb2f83113c5fb. 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/MXF152401636.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0132a0f9fff06ef8c27c2c6ecdd8e6ca9dd2b28a317b4b0223b4fb126a57f129. 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/USLZJ2407121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87183a1a103647b0ea10f65627b8c32d68eba83a9055098d64cc15df122d253e. 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/COAF42392033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71be3c8fbd1c323696467898c300d652691cfe7d86ee11b42d0f6a7c1de4f004. 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/COAF42391013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x606a00f6b0f0ebbf6744c468c4e8189af2a5d31490fadf32e23098d9a08ec2b2. 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/QZNJX2414915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4342fdc8c6f4edf4ed2ea6e11c71effcd9bc8d5e8f140075f2ccdc0aef881daf. 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/USWL12501085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x906621ada994610fe30e2d8d31df8597f467466bde60265b60c87262b68c0592. 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/USWL12501086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52102db935af12b7956287cc092c4cc06f3520efcfb288355890ccacb33c8ffe. 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/USWL12501088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc89209f7a63f7768f8a1e3626bfd4f47c0546262bd6678c46dfb67a61dc6d044. 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/USWL12501089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c470205b9bae1f8f12a4816072b83bb10ac5e1d3a1069fdfca4fe63354fd593. 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/USWL12501090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fff27f69d48592c6ad81c81d6302ff2bd003a8267a10daabf659f6ae4ee3abb. 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/USWL12501091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaee9e6a706a983af02e9e9f71a6ef34ebe96a01817bee4125af9141a118cfa95. 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/USWL12501092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b6cd9f9eead7bc23cfcaf29dea9d151fd558731d812efd05a5534bb2367c5a6. 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/USWL12501093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb65841ef360e36b1ad35c694ef0c2126b4463020cc169561f0bace088750d5dd. 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/USWL12501094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97412ff7c184c9fe8f1dd8bdaa9cee5d080e6a993074efbd938963675e752ecb. 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/ARIXB2500722.