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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x046f6e5ef52ddb4a694c8a3f89eda278a57f07bfef636234a7fb2bdf15b9409f. 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/07cfb89c-6fff-4e9d-868a-81c75dbc1939.json and https://artists.proofprofile.net/proofs/artist/07cfb89c-6fff-4e9d-868a-81c75dbc1939.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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf48baf8757a7b0d91d30efacdde0d62faedc874edeb79d256ba7de48612ddbbd. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/QZTB72364249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d646186900456cc12651e4acf5a19fd847a90b320c92462c6abbcc877a7449d. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/QZTBC2340591.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x340a9592775cc3210cebc00a4a755b45815868630821a0b9c6c8092c7c1d0cd6. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/QZTBE2362715.
MTG LOUCURA DE TREINO RAGE (TREN TWINS EDIT)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0433c87f2447bb420b5ef72b085e8ed0469b19ae7790a776a70b746fe2230fcc. 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/QM4TW2429945.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33982e6825e0c3427cd95c53599035bd4ac79ab4f7aa093d54295a8474e026a6. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-20T00:05:48Z), 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/GBKQU2411642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd090f6f45bc8924f5fb72b6fdc95007f31cb55b38f8864937de434571eee78eb. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/QM6MZ2466798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf5c05c32af5530477b178cb754b1cbf192b70cca8a5ca27b3940fceb35511aa. 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/CA5KR2456784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x967c7ba5c720db246c18643e1a7406193f0343491a1c62716574f26b87900150. 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/CA5KR2456785.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b4c824f3a9ee183e5be31d0086b20916edeced08d5bd515e7c69e926399eae4. 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/CA5KR2456786.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcffab308e9758ba850005369094f0fb655af1faaccc9668ea332f9f9b1707e0. Chain 2 (Bitcoin): anchored in block 958666 (2026-07-19T05:00:30Z), 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/QZES72417081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11962c3e12a512fba07cd6bbc09606c79860b72d9bd1486b9b01c724b333f409. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T10:56:34Z), 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/CA5KR2471596.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4fd3ea01bfb58c10aa5e89db1b629289216f0098d74baa115a6c5cfc9823489. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/CA5KR2471597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88a45eec98d63d10683eca0586735026bea4fb7de6dcf773d8c8798c3aa26f17. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZMHP2454261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x816497a7d9d899b606e9974c7a1d9eacf8702fa8dede0f684fd61bf8d08a9a6b. 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/QZMHP2451131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cbc858038084878f57ef8197cc47317278d4fe2c7b43b15b2f66d51213c8e2e. 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/QMDA62483227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa465411b00cbc20b38ad9eb73f10fac90f59d57d5957caa3bc308ec23d7c679. Chain 2 (Bitcoin): anchored in block 959069 (2026-07-22T01:05:20Z), 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/QMDA62485790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5ec0cabc88c4278d0fa9081f6d0341deebd31479ad1dc772b955bd2286f1f7b. Chain 2 (Bitcoin): anchored in block 958558 (2026-07-18T13:44:16Z), 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/QMDA62485792.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7a3a1dab7dacfc32995d9b8395f2f4698a83072f0125df505feb2833bca071d. Chain 2 (Bitcoin): anchored in block 958404 (2026-07-17T11:34:58Z), 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/QMDA62485795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc148ec35b1fbe8981b286c3720f2ba575ed7806bbe0b995f87f4fce7c468acd. 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/TCAIY2461207.
Manipulação De Automotiva (Super Slowed)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd09d993e75d3798f62525dfafb693adb491ad160609f5fefeac9376b3f230081. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/TCAIY2461230.