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 0x8f45f787f8c120885215866085cc04ee63fd635aaa4ddd49f8dab98d755e67b0. 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/531cdc82-0c38-49fd-a0e5-a0a2aa6ac6a0.json and https://artists.proofprofile.net/proofs/artist/531cdc82-0c38-49fd-a0e5-a0a2aa6ac6a0.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 0x43d238904f5e14151081b4db64f50f40648b867f61c69b1ce0e4f0890e31221f. 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/USHM92018435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x514c81ddc73b9d1aa252e4495f2bb848488ba3cf12d3b57dd45047457526cef4. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/USHM92018436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46e9cb398987bfa761eefd7e7d305bf7e3a066cd044e58f36b8bf7cd51ab4cdd. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T21:35:55Z), 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/USHM92018438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d0cc4f86fc1d753c3b7f988dc75cc5dd9b390ee78281cdfd428783496bfe346. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/USHM92018439.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbd0eab21ddc1dc6f9d79af7fd817a4933e16222f6e1121308d077f7ea066d62. 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/USHM92018442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9a4ce4667035089e8b91315ba89e740e0d81e1a60baf44dc84db9fbf7475479. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/USHM92018446.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33144ea5c41a564f75b052e090f601e6c1e463d0183ff250f84cc267f7f0e306. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/USHM92018447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5ce0af3f1542e08e647f7b1e005b012df0d73f967113e71c001cb88156499f6. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/USHM92018448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa5e625aa0c5459cb078fedd586fb0443e30c85c53c305d02e79fca3c9926a3e. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T22:20:43Z), 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/USHM92018450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda271950031f20b5d3eba2e73ee51b5e8535fc86f81c5b40bd1c2fff9aa7f7ab. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/USX9P2023024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4817259ba01bbb81557626654a5b14db2100195982fce31fe74ca60d865fc3be. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/USX9P2023026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bb076d84fe28695ffd3ea223133d8296f16383467c4da31e6a85505944fa4d3. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:18:49Z), 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/USX9P2023031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2198da4fdf1ed387f25542139d31c56222625721b3909558615789bddbdb141. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/USX9P2023036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89e10b2ee46744d817528c182922bbcfed07521efe28e53269ae86c01d534d77. 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/USX9P2067952.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3367676cdb606e4ed46888aa504d95bcfb44335c5a31477d9d42f59d14ee0c88. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/USX9P2067953.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4717b85c98c859257a6c70d5c23f18a00c8caff1c987463b1fefee137d4cfea. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/USX9P2067954.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x737b765be3fe5b958094e57b25585ef28421918e4cea5e2ed38c01a899dbc44b. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/USX9P2067966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x787d02e3cfe356036d0ed450b5a7ce65a0194052260dc541ef351d2974dbecb8. 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/USCGH2139527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29be0610e054ec0c6fb001643e14a68570527ccac2f8e26a9c1d9f0a4bf6933d. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T01:51:46Z), 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/USCGH2139529.
Serestão do Ph (De um Jeito Diferente) [Ao Vivo]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a6f12925b6bee904d1f4ee9f38474b95b235b5a9e528f5cb522d3a3048f3924. 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/BCLE42500002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ac37845689a5d1e4464e3547ac2ceef87e806b82b1c8df82dabb1bfa4100ad1. 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/BCLE42500008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43b0d0e13cec47213766ed95561737122371c2843b34ce561659d45115141a22. 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/USANG2542638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b43323a7fd3c6ecfa02414b905dd9984595fb2af39d2bc4b8be5132c28c61d9. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/USANG2542642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa15118dcae3e254f383f6fe0b54947db0b5cf6d653d5b7cca6e3b51b61f138ca. 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/USANG2542658.