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 0x1a9e3b5517e976909ca79d2d066bc334d7f65bef3b76354e92c11d987446db5b. 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/fbe05753-63a3-42fe-9cb3-b69c36b991db.json and https://artists.proofprofile.net/proofs/artist/fbe05753-63a3-42fe-9cb3-b69c36b991db.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 0x23cd0bba893bc4e03244ce9e8e1cea03ed59533ee1c0399540966ee93a143e30. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/US7VG2419273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87db3682a557f098c65d45cf078e2ce342335e8792c68fb98f61762a026e1796. 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/US7VG2419274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdb55a88f0a7500575ca4579d7f1ca50bf9a70a34cf219f20e856508d7643a35. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/US7VG2419275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23cd0bba893bc4e03244ce9e8e1cea03ed59533ee1c0399540966ee93a143e30. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/US7VG2419273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdb55a88f0a7500575ca4579d7f1ca50bf9a70a34cf219f20e856508d7643a35. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/US7VG2419275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bca55e6868abdd4b95aeb8a107c78e43b60c9807e03127b915ca29afad4f99b. Chain 2 (Bitcoin): anchored in block 957788 (2026-07-13T02:37:37Z), 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/QZW9L2339995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd44658ae03668faff5438b1484f98c42941db0bc0fdb3b0f41338d17c503beba. 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/QZW9L2339999.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedc99b2fd1009c54b4af8e95cabe4c8194d853d7e4a91d9848cd77cf10fa2299. Chain 2 (Bitcoin): anchored in block 957772 (2026-07-12T23:31:17Z), 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/QZW9L2340000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb485a2b9115d4c57182831db0b39f9a57cc285cb27954475307a51d9c1e2b913. 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/QZW9L2340001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ce951a5f831fc4e41ffe3f62d762cc75d3d8faf40b075d1e9a18d1cefee1f8b. 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/QZW9L2340002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccb956384449b072516afe80e653089f32d9aeed4e3501c719f0cdf9aa1d7147. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/QZW9L2340003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25c26f4eed8ba53abfb86d6c502d6cde261d45974250e5234df86deedb131a98. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZW9L2340004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbce2cc780a2e2d5f2c296b6f829b4fecf51f5ff94f4d7acc6f5cf5a2237e85a5. Chain 2 (Bitcoin): anchored in block 957775 (2026-07-13T00:04:23Z), 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/QZW9L2340006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x226aae05c2ecfff90cf926044da8f6779dfcde2fad9906bc120285dc24b004d2. Chain 2 (Bitcoin): anchored in block 957705 (2026-07-12T12:50:42Z), 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/QZNJY2473039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c79fcb97947a47ebef6b112e3f72fe7bdafaafc0fe47d1df18b0e2ccdfdb38f. 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/QZNJY2473041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1888621483e1701a74591cc804bd26caf40baf69cfd3fdd37c41447cf8b00dbf. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-17T03:31:06Z), 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/QZNJY2473042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x181802c9e50756ae05c811d6633f72d70a7c3e00364a3701d484f3a847a5d010. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/QZNJY2473044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12849d286bacab677460dcbeb3b571c75bd29493205db92274557ccb346db670. Chain 2 (Bitcoin): anchored in block 957711 (2026-07-12T13:56:57Z), 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/QZNJY2473045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x226aae05c2ecfff90cf926044da8f6779dfcde2fad9906bc120285dc24b004d2. Chain 2 (Bitcoin): anchored in block 957782 (2026-07-13T00:52:48Z), 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/QZNJY2473039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c79fcb97947a47ebef6b112e3f72fe7bdafaafc0fe47d1df18b0e2ccdfdb38f. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZNJY2473041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x181802c9e50756ae05c811d6633f72d70a7c3e00364a3701d484f3a847a5d010. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T08:56:41Z), 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/QZNJY2473044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12849d286bacab677460dcbeb3b571c75bd29493205db92274557ccb346db670. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/QZNJY2473045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4342f60e4352031089fd84c61265cf1af1a2e01f95b97cdd4e5bb9e5a4ccdff9. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QZTPX2437283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cc31a853f7d426fb646aa35599985f954b991de0974c36c533b946b83947fdb. Chain 2 (Bitcoin): anchored in block 958395 (2026-07-17T10:10:33Z), 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/QZTPX2488982.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x383da6e5e35f32032042f891a78a672370323e43f164e51552d187cd15c7d42a. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/QZTPX2488988.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59ec3c145b65b2ce8a856d7fa774ff495cd8b1781e71352f3b5e8812d529306e. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/QZTPX2488996.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54478b599d94eebb5eaaa4b080a03ef31ffb3ea1bd5e77af4c0cf6631a2d3799. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZW9K2467123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x958ab6b8da0dd998bd63a18dad28665138ace97f857034d1897de954d5f5471c. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/QZW9K2467125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92a805df939e5b04e8ff1d34f068c7efe88b9ea5ef99a5ec58402f149804195d. 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/QZW9K2467135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fe66f7fbf6605ca139e5ed1b74e52cd25eefb17b682b50a34fd35143c8c604b. Chain 2 (Bitcoin): anchored in block 959052 (2026-07-21T22:40:01Z), 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/QZW9K2467130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x710aad1a17776aa01b5de0a99091c535abfbd4bdea294dfaf15cd8c41ff6cc2e. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZW9K2467133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54478b599d94eebb5eaaa4b080a03ef31ffb3ea1bd5e77af4c0cf6631a2d3799. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T08:58:27Z), 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/QZW9K2467123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x958ab6b8da0dd998bd63a18dad28665138ace97f857034d1897de954d5f5471c. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/QZW9K2467125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92a805df939e5b04e8ff1d34f068c7efe88b9ea5ef99a5ec58402f149804195d. 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/QZW9K2467135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x710aad1a17776aa01b5de0a99091c535abfbd4bdea294dfaf15cd8c41ff6cc2e. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/QZW9K2467133.
World Without Reason Original Soundtrack