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 0xb1ae6cfa51fe93258a9212bf57b7f46bea2c22c1f2116b868cdca8b7178a60e7. 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/a32f835e-d106-4485-a0e0-05c920acdd7c.json and https://artists.proofprofile.net/proofs/artist/a32f835e-d106-4485-a0e0-05c920acdd7c.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 0x2ac1bbd132bba709e2c95511535f9e272277190eca9b9de221de09ddf6d8e6ad. Chain 2 (Bitcoin): anchored in block 957874 (2026-07-13T15:43:57Z), 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/ARHXW2100985.
Mix Kumbiero: No Me Mientas / Duele - Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf30692bf53ae8e189324ff733488bc8391d9462920c35b9be21195239dbb9fd. Chain 2 (Bitcoin): anchored in block 957796 (2026-07-13T03:24:42Z), 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/ARHXW2100986.
Mix Kumbiero: No Me Mientas / Duele (Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e3c12e161cc9efe91993050f5ce48a9934f421af3495cbec6e18fc7dde6167b. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/ARHXW2101581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbc5d0d100d7b00cdbf89ac0cafa12b044922a10cb20ab9deff5cba26b631b0d. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/ARHXW2102785.
Mix Ronisch: Traigan Cerveza / Ámame / Prefiero Estar Lejos
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fbade3accea3794058b029ad0a06c0fa824304234cb7253236e1b5c9966e518. 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/ARHXW2103927.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa5f3c7235e01ae5916663983e116e6ffc6fdb0d213a78309559c6b2b92eb482. 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/ARHXW2105867.
Mix Enlace: No Me Vuelvo a Enamorar / Dime Quién / Ojitos Negros
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x569247c89c830168ac5a210a91f927573ac6af495441635f236000f0c1e76936. Chain 2 (Bitcoin): anchored in block 958703 (2026-07-19T08:36:12Z), 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/ARHXW2202867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4502f8640d293bf63aa9c8b193d753c6e1eb932d7dddff399119142ce99752f6. Chain 2 (Bitcoin): anchored in block 958561 (2026-07-18T14:22:01Z), 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/ARHXW2300375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x577dec943b538d1f041cdcb668da8463131c8e1806427c8a951ec7c64cdcc0aa. Chain 2 (Bitcoin): anchored in block 958508 (2026-07-18T06:27:01Z), 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/ARHXW2301482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58aa92fcef7528b4736503d5eada887eca8675f093f3914dcc6fdbdfb3c7b37d. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/ARHXW2301484.
Mix Climax2: Amiga / Traicionera / Jamás
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70cf446dedf7683ba2c07d0edbed5042d9f5b482a2014b6ce6437acbdfddf126. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T09:16:54Z), 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/ARHXW2301655.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b0671b7982a86c8c223c68c7f9f510913e625b93095c55d00ad44a1e57b2c51. Chain 2 (Bitcoin): anchored in block 956713 (2026-07-04T23:03:25Z), 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/ARHXW2302957.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb87e7f3b8a86e249b8af84c1687e9cb93081c3390fcd7b85d27e9ac9c9fedcf9. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/ARHXW2302958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd33cc733889d320a8b67c24c67149969c9adbf1da84dde4041b5ed435ea3be85. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/ARHXW2302956.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf03493c58771a22f239d5f67f53976db95b87c350fb1c57445faa63e09df8b4a. Chain 2 (Bitcoin): anchored in block 957961 (2026-07-14T05:58:47Z), 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/ARHXW2400068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ababb662a212f428617424521f341d767ab65842e41beb6254329fb8d450c7e. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/ARHXW2400441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a76683e2a757f4eddb1df45d2a549aa2881eeeab7023e47466fafa916c27763. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:34:25Z), 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/ARHXW2401166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cbc3718408df3fadd6838b57f50407fa75c403bd9f6b52f4fa69d7b970fe985. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/ARHXW2402006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3e3836a86c34fbe8b490fb38b53797b3a2837ab418cacea3144dee03700d377. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/QMDA62594576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0fe8d81d4316145e3158105fe4e321c966835bcdf9b88b8d4d2f34af32287f7. 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/QMDA62594542.