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 0x32218062834435de03cd7213237de6c45cf67499dbc13a1607f479bf56bb3f97. 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/86dedc22-a863-4cd3-9577-eb84455869cc.json and https://artists.proofprofile.net/proofs/artist/86dedc22-a863-4cd3-9577-eb84455869cc.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 0xbe0a7d3c7e03026ba7e274174134711618b470cc9aaed34a855ae7920f55e9ee. 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/AULLW2100117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7b79d36b2d01c5118353ea7cc02abbb1c8a5a60c774c538e5b962ebbc47a034. 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/AULLW2100118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdb1e0d17e2c4a897c75fd8c83eedc67edaa3aebd612df2d24d5e28c29d70a2e. 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/AULLW2100119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14ad4e6541d0b9bead34dea24ce82ddc8e759734858c2b7631f416dfdac00980. 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/AULLW2100120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e742719ab3839f45d68220bcdcdca611a4effad27e200026e21cf36db74be72. 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/AULLW2100121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4714f96b1735428e11ac619b31cfd4e4a020677c1c1a55860a75d4ad1bcc64b. 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/AULLW2100122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58b5f300d38abecfbacfa0e2ef1fd50db3b76e02ab26afd54c2163d70999ab8d. 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/AULLW2100123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77de4e233e1ed77ae8ff2a8fc7728aab69784161041709eca48d9607cb9070d4. 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/AULLW2100124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd84ed869aaaa03e9e8a7efd5cf6289a3eef1f0b908bec82976308cce1d10bb1. 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/AULLW2100125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48169489572e209e48514bc21d72ef89384aee3cc21bbe9ec31975b85439eab3. 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/AULLW2100126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbba6913e7f69db94da0ecd76773602f5572604bf8e0c0022888d7967907af250. 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/USDY42328595.
The Waters of Compassion (Solar Suite Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55d7157b3cb884327ae1cbe53c94c30a0ea1b7addd8b92433d1b25c259a680c0. 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/USDY42328598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d910c99f28020166fea5d88cb4c854f4164fae4996ee400ed5b1c2d4296a66e. 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/GX3Q92324462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x423431558f291498afaae388eaba3420315ed38439cc9d8c8021e4832f638d06. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/GX3Q92324463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58e2b31f86872a74f500aabf1fb9db2fedc15947a55888683a0cc38ff5a87a5a. 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/GX3Q92324464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf33f8b7730c2d615b18ef7e6d82f595a322b99080438a65e43b37fc2e52439e9. 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/NLZ8C2200065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13872266371107356c20b407e73dfb09413a977db350d71e7a963e0bef267e26. 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/NLZ8C2200066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93f6d9149d66b0407fe97902192a7411a53e57ee99f12789ea788eaa85c29d21. 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/NLZ8C2200068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43657c62dbd30367d20f78b0281510900cbc74721611501cc37e1d45fc32915f. 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/NLZ8C2200069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32d901b9dc92602bb157364d0465c5d836289e858df726fb7ca7915e7fe6dfe0. 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/UKL4N1700146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcfcb401d2fac7304a164add0e19b1c704cd65a53b26850a3a263ebce2f86092. 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/UKL4N1700147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa58e3fe6e1cbae0093d58b7a1b79707602eeab683f4e45064b911793dbcf4ecd. 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/UKL4N1700148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e0bcd5de6ab1f059c481a545213546c3792bb716482578f82229777080d6824. 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/UKL4N1700149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ee5ce6efa8c34fdc562d8d7ff3991c7c22618f1f45e7cda0d17465b8b5e29e3. 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/GB8KE2161475.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x043c460db590d8b5646705584bdbe6b9e5692ec8ac5dfcb2e6896ed61445cb6d. 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/GB8KE2161476.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54fd95ed04cabf38b5eba041ec0465da7148f18d1d984661eda9ad97d9d09483. 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/GB8KE2161477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b18ce1038914637b85a83648fdf35104524341da9f8142dc8701233e0c6bc37. 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/GB8KE2161478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc24b078a7a8f6e96adb8c3dd4fa52658a7c7f1411c141d6a73a1aac2a9c8d0f3. 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/GB8KE2161479.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00ae5c41097a7ac80592401fc39a1887f0befab5beb63e98346ad5ebf85885e9. 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/GB8KE2161480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6958aa828721d54cfeff171d3d16ab0f33093ab8e6c86ef3ec95eb45365e332. 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/DECY52100657.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8808ed2c24ee880511148b73b9ecf95b5857fbc59b3b84375445947f8df7686. 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/DECY52100658.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a094c6b4ee618b1aaac8e48ea39bbfd75aad898b6a7fc53352d33e2ea5b78e3. 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/DECY52100659.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa3a586dc3cb1c708af35ed5bcfe32e258279c4fa581ceae518dcdb0c8700d4d. 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/DECY52100660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bb5ba3ac0fc326b127f626529b3a5699e046a1b5f6c5b04ed58043ca857de46. 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/GB8KE2413226.