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 0x6fa412516b7bded2c333d5e712530912cee50a03bbb55679e4ad196b782fde6d. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8edd2401-82bc-4b2a-9a75-63ec69a60d12.json and https://artists.proofprofile.net/proofs/artist/8edd2401-82bc-4b2a-9a75-63ec69a60d12.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 0x94b5c41ea19577c103c310b6b8d75482c7bc62cf28c55408e30c817db08cd3f5. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/QZTAT2188254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf84d0472079d7674df0650055515fd98c299132d628314a67feb519730b7983. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T22:08:55Z), 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/QZES82259817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c726a7809995cde6a0e1b2cda4920d3d43d5de599f03223d829495eaf8f23eb. 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/QZTB32217184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72ec5effc8de20b529b0a4cdcda2fad55b1e0497371b37f55b95e755ce0385f9. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T21:59:59Z), 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/QZK6Q2322559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b15af1e5dd586c525d115d7c28087f2235f20f20fdac9d9f85291d5ceeaa811. 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/QZNWX2399725.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9624996f93fb763fa347d68756b22926641b258f49bda177e7ec125534502296. 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/QZRP52315135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03f55856bc9176c0f70726a7bc2a811ad1de0f5bfe7a0b3fd8f0fc8d93b03612. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T18:40:34Z), 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/QZWFR2349468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x792487d48b553a562bf8df18e2a53b99737ed45b51bbb2e09a5667a2877967ed. 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/QZDA52418245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb662821faa612dde19573e2574ba603efb321c7b344db7e3fa16c389edd4b41e. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/QZNWT2403343.
this is the most serious and intellectual song you'll ever hear
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45b6fe9e34e770076887b7572b4d4ba467857fc9910028869d291223d9005a81. 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/QZTB42447696.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9699c192f4a40d1eded6d38526fda22edcb72153ee2e7e4fdf72e8828c105067. 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/QZWFR2415760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefe226236e114b81338cc2a2636521c25719eb5f5d9651100995f1749a31e57f. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/QZHN82552744.
satirical rap song that someone will take seriously
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb86a6eeddecc4efecde311031cae8ada631b13412f17722e216b432298abedaf. Chain 2 (Bitcoin): anchored in block 958465 (2026-07-18T00:04:42Z), 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/QZNWX2518407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9e168192a28cdacfa6f347535e60d8b9ebc915bc2fe8aa1c241109ab1489ca6. 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/QZWFJ2556209.