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 0xe38d92c6c920597641133478a6f77ffd8e05e6f30fcafec7e98dc9fbf23bdfc9. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fbff1510-adc3-4a77-90ed-ba9ffb664656.json and https://artists.proofprofile.net/proofs/artist/fbff1510-adc3-4a77-90ed-ba9ffb664656.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 0xdcd431af080e3eb28e56d1b213d19ce22477ff1670deaceda0ab1ebbe562d358. 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/PTBM12100095.
BRILHO (feat. VirginGod, roddie, Flameboi Matt, Yung Euro, eddy0 & Jovem Fenrir)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x691437912b4363c5b8684d5f1cc4f85e232318a704f1cd1663474804f1065486. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/PTBM12100100.
ÓPERA (feat. VirginGod, Flameboi Matt, eddy0 & twikipedia)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57329f6842d792e15bcf042f40a193eaf6de8aa2b316bf9f2ec2dd23fee0d576. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), 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/PTBM12100098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffaab76f28e273f70043ea8a360f20da0b637b73d06bde225e92cdca7fe09b0c. 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/QZFZ42043591.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x579c6821eb3d9ced0a2b8f8a80a3455665029e5355387a87e51e02e86da30054. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/QZFZ42043587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9260ecd8ff4e43458e224d406c8ac68cae22ae48b350cd528ceff61d1dd79b4. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/QZFZ42043589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0b30b54a4408efe4de32d7a0c08bfaf26b494477d05b556a9e3fe9f184f0595. Chain 2 (Bitcoin): anchored in block 960210 (2026-07-30T05:21:45Z), 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/QZFZ42043590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd002540fe200c769e50f4cdde0f9af811bb668fb371ca60fc7a95cd3a033e99c. Chain 2 (Bitcoin): anchored in block 960485 (2026-08-01T00:10:46Z), 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/QZFZ42043592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05ee154236b7afacef3bb952e6b7df3bb8d2439a00a9625ced2c54772d28428c. 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/SE6XX2150090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0354f7dd7712d4260f57ab49c65e7cecf3670209232335f17ee435cc175c8821. 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/SE6SA2055815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9a8011ea786f90a1001e91975efeb8b76ef0c4c92e3341215a868f3199afc3e. 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/QZDA82094065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d9bf4636c357114344c4c38ac14ceeb282306472d9d5b1dca5a0e1198f6974c. 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/QZFYZ2033949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a7e002ddbd75474467f86101f9dc833b7e96ab9e1024c32181e0efc5683f987. 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/PTBM12100148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dec4d4cc87f896da9cfa07a37f24734c29b4374bcd8eefae9d0f8bae4ebc4ca. 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/PTBM12000118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc60748097b9aa098dff9b3e5ea5a19e284bd98a169f9667f81d3d427020b33e6. 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/PTBM12100149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1747fe12684dde83728efeae1d62e59d38d7d303b32bfdaad6e2405ed2ad912. 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/PTBM12100150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb1599c773ac85343c53110f943bcce273724043cacfb6f073ee945a6e595086. 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/PTBM12000235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c27adc690dca96d99c81798826a6001706b3d3a7c46b787c3b96ea9af35be97. 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/PTBM12100152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37fe895b2b58a23188df92b67c388764eff2d8df0222ccd9fe23c7447526e0f8. 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/PTBM12100153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5588f782cc1de5a8e99bf193b6d18d1c9c7476f08a88f1406ebffd9c13b30aa6. 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/PTBM12100154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4074af5af8b9fdf1c0e030a8f381289a71de1ab7e83817169b1ebbe591899325. 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/PTBM12100155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dbcbc390e32c307c3e04cd37f6f1133261a2c25633d4d433a3e550457dccf35. 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/PTBM12100156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x161204d99eece7477064685c990142b21764d46d55a38385ef97f64d7f3b359d. 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/PTBM12100157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe7f3694cde3bb79572b46c2b1fb3a2ca6f9656f54d33308d554791b91896736. 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/PTBM12100158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a5184a2ff9f579593f42b877b76df1266139916821f01cf934e8811f1659b1c. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/QZDA52133727.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddfcc86c451b9ed40942ab2f3a28c41f0d43650f61271312853a349c8730428d. 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/QZGLS2087820.