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 0x469d903059500559182eac1e4606dc9930852fc6422f35f5cdf82e1a77d0cbfc. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/308f2c2f-325e-4abd-942b-64e1e5e61a0c.json and https://artists.proofprofile.net/proofs/artist/308f2c2f-325e-4abd-942b-64e1e5e61a0c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Final Toccata... Based On a True Story
Supreme Legend Series: The Shadow of Youth
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 0xfe3b72ffeae5582b1492383539367b6047af46969e58cca2e0fd8a58b0cac8c4. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/USL4Q0746002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2763c08e0caac674eda44e8937a0e28c4d1df6098580a0a7feaf6d5d7c0c5a7. Chain 2 (Bitcoin): anchored in block 958617 (2026-07-18T22:07:13Z), 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/USL4R0792262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x835ef2bcf6b7f19617c95114efa91b42c74fda7df0ec4cc14dbe90ee8f6b9c1e. 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/USL4R0792264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8d20dbd07cf8a48b3a2cf21458db5cca8ea39496ab1f413868f6ce1ae55dedf. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/USL4R0792265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb045a6db715a9527699cd54ca7ae8946caf8b7578b0fa6f324bd67a6ae1e90e1. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T11:07:42Z), 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/USHM91381223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb49b21ae4a090c5f99f5dff450eb461a457f24f001ed8522121f23354376a4b. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T06:46:37Z), 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/QMCKH1300013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7294e53fb4b94748aead69972d32cdb9f0aadad547bb01ab0c5b23bc81535792. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/QMCKH1300016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4784d05b14c4b8f625d93dcf9583099a4b67833bd1b3c3ed9ecd3eae0ceb7c52. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QMCKH1300019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a49251adce07d6d1b4c120826e3af32d4c8714e454db87cf8e2b21852cd9006. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/QMCKH1300022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb88f8f1a3cc645c0a39d3a13b7d6b428b15d1abdeeeca023e5d76ba1c48281c5. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/USDY41691626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08d93cc34348ca09a2fe01a625a2537854246bf6f7490143f786d862dafb9143. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T11:27:59Z), 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/USDY41691627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a721019b1e8becc811794c0c4d62f4c06c8b2b9f364b0ab53042c80395254cc. Chain 2 (Bitcoin): anchored in block 958504 (2026-07-18T05:41:32Z), 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/USDY41691628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89553563f82e4c1f9bbd767b7e55a63fec78b4354c1645b5a70ce1604722ce52. 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/USDY41691630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bfb85b39b98ae1f9a70b9b39f7104c955f1fe08b557500df300dec665bdf25a. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/USDY41691631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x114f33ea71d471bb52398b82825319485161994f0b2e8ec6b03f98990fa8153b. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T18:01:10Z), 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/USDY41691632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb66b1d984e5dd271fa0f9c5543ef198053eaa513535f31c67c18c6c94784441. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/USDY41691634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e184e5e928b8ef83ba0d22032d3f88cf58d80754f2c6f545c365e41ae8f0bba. 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/USDY41691635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1005a314e1372739e55f46c273ca37b2b9de0b7075ffb2a0f83b686b0e30113. 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/USHM81763009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a851f1f98a68166e24b520e151bfc1c5f2b6760239c085551432a4c00755c9c. 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/USHM82073745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44b2422e7edacf01d5ffdbe0f8854b19977b74030c0dd9ecdd191c32b12006af. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/USX9P2483966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa89ea189d17c1c53abe1ce95e93fb594edeebd646e28e528ff12996f706a61df. 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/QZK6P2512342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe45daa711d15938c6c15cc03ffbe668d89f2cf0d1320c56c0eff9fb6d077f8f3. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T02:31:22Z), 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/QZK6L2570614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59abd24bd641391bf3e47e70473154089f0ce401b2315580cdf9f3e63d2232f8. 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/QT3F42585420.