Asthma is a common long-term inflammatory disease of the airways. It is characterized by variable and recurring symptoms and reduced lung function. Symptoms include episodes of wheezing, coughing, che
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 0x2b7ab6bff6960083b27609b86f383524af0a8834867c57e957860cab75d1da51. 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/c0934fd1-d548-439d-8897-a6a935c2f348.json and https://artists.proofprofile.net/proofs/artist/c0934fd1-d548-439d-8897-a6a935c2f348.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 0xb669a71e3ac5585aca0d3b991f6c3df778b439875be703107e5c68cd44b17045. Chain 2 (Bitcoin): anchored in block 958322 (2026-07-16T23:23:20Z), 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/QZHNA2077310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2beb1292f2d1d3d9fa40f8c79f5ca12fbabcdb8cb0d47a61561e6c59c1889a44. 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/QZMEM2038803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57869decd9e6c1a301328266eb5382e11960d2461cfe22431787d62a1bfd392f. 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/PLUM72100463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd493ef9d086f8dc00f43bdbea88a32112b6d60fd11182c83bcf2d176220bc8b. 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/PLUM72100618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5ffb62be6dcd898bf4f2319024fa01628fe7994c5ccb62e6abc25c1a67bb160. 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/PLUM72000686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87ca3e3b5a6ba812f6f1243302aa8d82bb02bcc87898d80d8688e1dde02092da. 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/PLUM72100690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0a79a82a1a58491fb5236b117d93823d4fdec8b3c33366b69ec1d83219df5fc. 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/PLUM72100691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ecc1386a81e035108017b34e5aacd58b3737c2d76de9b2878e36beac96cbece. 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/PLUM72100693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51253d5cdc7e420f5b81bb72a63912a7493480f48d458649a139eea95c425881. Chain 2 (Bitcoin): anchored in block 957820 (2026-07-13T07:54:01Z), 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/PLUM72100496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf2d137a633edba2943c1265607c740b72d8dcbfe91c90fd8e5025e7cfff5663. 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/PLUM72100694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42e89f7279c108c482849ca285d5a28aba199e11cd6893e4568f991fd5c8727b. Chain 2 (Bitcoin): anchored in block 958738 (2026-07-19T16:04:30Z), 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/PLUM72201067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87b247c29b0dcd2b0496c5d11fc1a5548fec8afa335369c2e2e82cedb27aeda7. 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/PLUM72300139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f02e46d5e38d88a09e18d0d132ee18c3625f0234211174db5db8d3251bc26e5. 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/PLUM72300200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x430f44add6d90f37221c8a862a3490c589414f454fe9d1ab7de435fc34a06592. 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/PLUM72300206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde0c0b67b7df46131dc9d65f7f3960dd2eb2335c0e2781db5276a4ec2facf0ac. 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/PLUM72300208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd73addad1fc4ee8b3a9a8e07445ce65e279f0286b0e851d67a73148416413db2. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/PLUM72300209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67629f577624fe0f24acfab7937a32a49bf9982197a6518a1ed70bafbbf54f6f. 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/PLUM72300210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f02e46d5e38d88a09e18d0d132ee18c3625f0234211174db5db8d3251bc26e5. 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/PLUM72300200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87b247c29b0dcd2b0496c5d11fc1a5548fec8afa335369c2e2e82cedb27aeda7. 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/PLUM72300139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x008e0dba01ff42000143f8361bea2a4402e9486c3bc882ce6a50cd60c066b3a8. 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/PLUM72300059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc331467826d170177fab84ddd83b0299f3ad7662749e8a06366a1dd2f5f32296. 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/PLUM72300213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x697cb9d3944015939ae1d7338186bbd9b339381074f94fca4030795bdd39a6c9. 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/PLUM72300586.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48dd45aac845c3f70dc554fae78002bdbf1012afe79558cf3dd19715add83d6b. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/PLUM72300588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x007a24233aa0aad951ba0edb9961f8d7a966b534d67e652986d68245294d3523. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/PL2H72500001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e60a2147f70b9dcd7d0113cb0b69f1521e4f2f931610286db8bd56099cb355a. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-15T23:25:50Z), 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/PL2H72500003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf354b86b21007829e78777da8cf50d120a05b0379098cb5368dffaf71bd94659. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-17T04:46:28Z), 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/PL2H72500004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0be8776400676787b892156949f36dba1e5574f133144e5de7d7663f051b19d6. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/PL2H72500005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51ebd14ac2c040dcddadb84ff85a2e6a94535d59dcb1841a82b61fe9913833de. Chain 2 (Bitcoin): anchored in block 958384 (2026-07-17T08:27:02Z), 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/PL2H72500007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf88e194dcf50a026d1a4fb99177263d52b0fa51a69f30b939b5867349164faee. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/PL2H72500008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc38f4117602ee96950710cbe3fa48b289fa1eea70cceb3dc219d7d19155f6588. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T20:38:50Z), 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/PL2H72500009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x422b7a78027ded070e8d42cc8343c80492c71318b16dbfcc19ab18538aa98de3. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T23:04:42Z), 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/PL2H72500010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ba36e73e96c057634566a35c063e5337ef615d2c8ac6f78736d73a7559ac0a6. Chain 2 (Bitcoin): anchored in block 958817 (2026-07-20T06:31:20Z), 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/PL2H72500011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43e5331dfd21eb37074964df5838cf18f1b91d89fd530d216d6f992cff4ff401. Chain 2 (Bitcoin): anchored in block 958775 (2026-07-19T22:28:07Z), 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/PL2H72500012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe87b63ea7a860749cbf5c4e9af6521304ac561a54513abb2404a01a5e66da787. 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/PL2H72500013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb731f1212a31de9f59cb50d8f38efd29720116d8ed26e86ba609c5839bee5ae0. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/PL2H72500016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebc2f44e790b1b3df8330be1ba4cb5d15443ce5d98734405daf6de958445fe97. 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/PLI292200498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea6618c1896bb7cb8cf1fa6e8e8dc47db1bb83d96ae57c20737efe0f24e8f56d. 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/PLUM72200488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6c427253fc20685c216e1f9938dae8f152177f42ed48824dcfe96a969c41cd3. 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/PLF242209268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae6b4325ada79b8b7fb582c2045fe298b17533193e897fbdd502a693308392a8. 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/PLUM72100412.