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 0x23f0497136a8e4ec3362f90e16b44f923b5e55f98999515ff8f9275f01269159. 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/762138ae-310e-4ca1-9a80-ae239639e9d3.json and https://artists.proofprofile.net/proofs/artist/762138ae-310e-4ca1-9a80-ae239639e9d3.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 0x36ca931f18dbf48274d15d4cd3a32c2783ecc2f6aacd486bf3e027f32c6ab63a. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/QZHZ52127524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13aa7267ec19eaa946955d2ac71ed229dc3ada1b9e59fd6db4e19a34d5850a20. 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/QZHZ52187157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3311e6657d28808521d27daf8b685442c3f3446f947b7f8931623af1212e14b7. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QZNJV2109890.
Hoje Eu Só Quero Loucura (feat. Banda Djavú)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1cb35e97764676658e518605a0ba9430a381e3c74aed33b0ec7dfe65cb8d3ba. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T09:36:26Z), 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/QZEQU2213543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1cb35e97764676658e518605a0ba9430a381e3c74aed33b0ec7dfe65cb8d3ba. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QZEQU2213543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe91473549ecb66692f6e99d1959fbfb03dcca7fc593dad34031bfb8c8b3b1b62. 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/QZNJW2265698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0725de4d5ed4d33b4809bbcef5d5708120d6b1e7d84ffc8bd015a9e93aeec83f. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QZEQU2252384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33eaf77cca376681d2df2b371e049eb73a9f59c2cf42aca47d3768de9fcf6425. 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/ESA112302229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8454bea7a8f7e233d18bf0fc29b84cdda5beef31cb18be8a3a19d8c93d68104. Chain 2 (Bitcoin): anchored in block 958410 (2026-07-17T12:18:07Z), 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/ESA112302231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x106df26374e5630dde053e3b94374e0f1bf825fb15b1b0c3edbc2c6515e876b9. 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/QZTV32377676.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfeaeccb056775a22b0730a8e2165544f6fffa5cff8aecfa0cbe1e26ab8fd92bf. 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/QZTV32377681.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x330599ce5e9823dbf5c32fce70c5f7358d501695faf9644bff0045094165edb9. 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/QZTV32377691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27288d61618ac28b0b4e58c3791af337e1bc6db9a6a982cf111db7ab57d40d92. 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/QZTV32377703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6325603a3858b48537284e38606635e4d7edf127e7cc537906d4a913b73d67b7. 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/QZTAU2316679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x281811524d246e4b175502532ed84f99cdf4b61be8c755331ebef9e9f35e48e4. 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/ES47F2300966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x372d061119e266926a55a050219d499324d4c1b747f1ba28d1282d09bfe1c6b5. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T09:47:19Z), 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/ES47F2300971.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x606407429e4628364c5ed91eb5b2a09c8abac92db50b00acdcea120c9f2229d9. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T19:52:47Z), 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/ES47F2300972.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf851dda43b63feebd182586fd34a10718e20719d0c657f7db1b4c98a9106ba15. 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/ES47F2300973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee5b218e4b5c3a6d3571e1e0e181ea7272bbd96f4595d729db2cc4e8e0735b92. 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/ES47F2400988.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b34055711b00e258a6a87cc7c1eef32a55ee9c506ac56376f6aaf6cb252ba6e. Chain 2 (Bitcoin): anchored in block 958126 (2026-07-15T11:01:28Z), 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/ES47F2400989.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e890d43669abb4bc416d8c2aa8a53f69236a1c642c3981a7d7e5ff05713de24. 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/ES47F2401356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x844177c0e63d1d78460300fc18f2cc384adf7e6d1109547abd6f3dfd256c5439. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T11:29:18Z), 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/ES47F2401357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb4d75bd1d18c4f9c84b20dd8e79ea456f5790e86b41f285baf8a5d317b115bd. Chain 2 (Bitcoin): anchored in block 958697 (2026-07-19T07:58:24Z), 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/ES47F2401557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f2c86b21e0b3b73cdb271888bc2d32d6226fc0eaa586c589f204521ad67257f. 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/ES47F2501861.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0045dc83866896e07eb064081e08ac70657d017d32d113b62bd2cb10a80bcea8. 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/BXIV82200303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbd12ce4a4beb483eb6c2c2089757e6f5bd6214869be923e96c3c7f8c2f358af. 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/ESA112563643.