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 0xa12341ac9021cd00d548dc481422e9348d1e55f16e4845a7350336d88ef0b633. 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/daff949e-c647-4ecc-b100-8b7e3b823226.json and https://artists.proofprofile.net/proofs/artist/daff949e-c647-4ecc-b100-8b7e3b823226.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 0x41596376ecafb1305c63196d67ceb052eef0092a6f53fa8f9c5bf4129b5f795b. 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/GBRKQ2534476.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d2b73a7d8899762156f6ba1c4ed454b8722e3e71c543fd276761b78a1e49719. 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/GBRKQ2534313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1a2b8b837ddc2d5f93aaea18a6889d9bff8dc0838fb40224902849dedbfade0. 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/USLZJ2585859.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31cf4553fb2f3e28462ee7c893b599e0562f61fc3a4673ab2120dc7336b83af6. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/QZW9M2436246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc166850f5fb4bb0d412f5cb76b0ad4b1737d42b4f5cd7a14e5f31b3e8c7e4d7. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USLZJ2585804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce68e264b171e0eac6f85c8c4310069659f84674c674dd48a24f2c7a3be874f5. 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/GXD7V2532031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fa8218feba0b8f6f01e54c3781773c4ee95d89b47520e5f5f58b037be12b8a8. 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/USLZJ2592590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeac9f430b95eca0bdf26051e82b7b5bf76a41e182c2efcbce5278685799f4495. 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/US7VG2541953.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94a02c17afa2f1cf160c1abc01965700586a6b7e86ce0a69e341fa32f4159598. 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/GBRKQ2535613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf15ec35f68339c11ad015c65406dae85336556d3496615da8f3704e3d3504d3. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QZGLM2591099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffce1399365e27684814efd4003e14d83ed25f6bdd58f5883136afd3b4718353. 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/GBRKQ2553858.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a68a4aa3d0025f54bbe7317e9263a91e4ce03a63b50bdb47c68e8ed87964e2c. 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/BKJ7K2500045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee477b0f3b28115ecce4722b64d705104c8e483162a4d4527dddae01ab75c9bd. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USLZJ2558490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd55cfc93128bca583928104c43fca66118b9612ec01401a80c472b5cb52cc5da. 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/BCNWM2400162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a3277ebc79b899102d34a0befb7974c89fe5873941767b088aca9913a1f4c44. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QZW9L2499207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x309ff2299575451975b923fd59d6ac130cdf3a4db9d30a533ab0d9920bb6b358. 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/US7VG2466856.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9927c4dac851def7dce8c037edb00edf37ce4e590bb4eba14a6802f207b22516. 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/QZMZ92460833.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x877fab03f68f685f5dadde3f4a21f9762f610fce0d4baa1529ea1131908fb178. 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/QZ5AB2442871.
Vai Ser o Meu Predileto Vs Ja e Seu Momento
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6342bb496af44de26a285afa507cbfa9ea0dc43bb1414ea192d52e8be35f68d7. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/BKCMX2400055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11716ebeac20b1f51a934070d95ee07f68f12eeabb2dfcd0ebbdba964abf6bf9. 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/QZWV32460161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71a4af957e9e3452fb8b57a56a1efb143ecf2883c2f363b5a5846d61e0456a80. 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/BC8182400017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a8bbf1786ff701b2f0ce4a48437d7f2008b0633e5efdf0eee41007818ac8969. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/BC8DD2400036.
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 0xa9ac292f3df4e7028a0fcd646cfaa0a2ee113df9df09ebc481d8cc374a2a338e. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/QZNJV2404619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7b5a6d32d53c1cb4062030a2012e2f5f895ffa42a15912c38878f0705c84f40. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/QZNJV2434691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc929b4656b32d79d0b94a3a066956e9a9844a7f3580a2cef1c25615b0d35ef8. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/QZNJW2423560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fc570adff45c9e176df8637de170600a17296f17d396e870b2f08f102d3bb3d. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/BC8DD2400085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86dbb00ff6344c5fb15ada4051991bf165668868912d56bcb2b630ad8b7d6c8a. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/QZTPX2435249.