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 0x30c276c5f8a42550acf99540dfcb1f5cb62ebd2452f680c48547448ee5a75818. 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/adc3b7e4-f818-4455-8310-98313dcb4bf0.json and https://artists.proofprofile.net/proofs/artist/adc3b7e4-f818-4455-8310-98313dcb4bf0.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 0xd216baf155d386ce6cbe10f2d827e64f28a34a2bd0da79fbb9f4f76a0c7d72bb. Chain 2 (Bitcoin): anchored in block 960407 (2026-07-31T13:26:30Z), 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/DEB630202912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbacd28db5a3d9715a915118c0a1f4aee8b9226f4e15c4b0a13c488da0ab28718. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/USR2M0300002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb75682fc15c38f5b6fa241948e2d001041c4024268535148b933702eb76b62a. Chain 2 (Bitcoin): anchored in block 958117 (2026-07-15T07:36:28Z), 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/USR2M0400059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30c3b27a2ec754a3ab1eeb2cb49a36c8fa49328bc96ecdd4c0da80c770662529. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/USR2M0400060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0554eddcea9c22a8252e8c8ee66b14579284af2a5a7ad4cb60a08aa443d78acf. 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/USR2M0400062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49f75d8d38ac32c217d32d4e1fd6f94a8f22b6fab811689a4f8e35dc3a13538e. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/USR2M0400068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50593fc3cf3be14019e791c3a948c7a156901e91fc7b572889676126abf2bcdf. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T16:15:11Z), 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/USR2M0400073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11059551a2cdbbba520bb3c8977fc6fadf8ea44dbd8e59c52882f5d92813a24a. 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/USR2M0400075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa7533344929491843216f8350e69280ae2b8541155fed40287fc05d6f300b45. 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/DEE790610120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ed4b8e95e6e5b10723547650ea103a8cf0887469888f05d919abe8bd023cce4. 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/DEE790610122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb5287927d2ca8fe26448c4bc7c989ffbe61489af3b88fe97046e0949792db80. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T07:48:27Z), 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/DEE790610124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20137a8410e8867a04406c9e81a8988a13192a2d312b4be3c30a0b8c9a7830c6. 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/DEE790610125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7b943b2dcf8421e1686ddda41eae3cd7f799b2ba379c26eee319c2e5cb332c8. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/DEE790610127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x340e5f29ad103244e36840bde18e841f86c20ce4a2607e38799299050249fa26. 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/DEE790610128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44af86e1231d089dacaaef7ff89f7fd7a23b8a2b8562a6c1a2cbbca331c2089c. 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/DEE790610129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d8d964ab0ae7746ce74f5023188fbc43597482615f52f103c78618c3ec3fdaf. 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/DEE790610130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e1810a78d644fafce8738cd52017f954f758c862e18bbd7a5a26c86d4bd3b9f. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/DEE790610202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4de10948dde1bf57de15c6f3a57c335b8ebc51ed9f58a0c93e01b3cb144bb81d. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/DEE790610204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1004e17d41603a4a7062e0c6f3e0190f49a14ad04266220b7516b34a52ea9b36. 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/DEE790610205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x736d249f866bbd15802070912c3e578261fbaccd83091ea9849f93ec05ebe865. 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/DEE790610206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72ccf82564938eaac798e195e5d9250154d86c5379f9aaa073ceb797c11a0548. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T16:16:18Z), 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/DEE790610207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ccbf667ef0838c93a906631b055b114a4d01799b1dff1310ba5f50918d4a7cf. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/DEE790610208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4b8f245aa1d0aad4d4fdb968ce7bb05ccc0fa4c3e8767eebda1bb9d2189d755. 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/DEE790610209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84de73c34e96e1386113115cb1fbbf5c1dafd8e605cbb0f85ef5c4b5f970f8c9. Chain 2 (Bitcoin): anchored in block 958401 (2026-07-17T11:10:25Z), 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/DEE790610210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f8c604baa3074ba8c0bd684c7cc0a339d48f4d7203becd02f616d8d7b15210b. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/DEE790610211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e009ce7bdbb40a2fd92754f3ec304d5a2c2eef83fe98729e91360fdb24003b2. Chain 2 (Bitcoin): anchored in block 958404 (2026-07-17T11:34:58Z), 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/DEE790610212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53f2b520e79397fce09b7e3b6d2fba4313f0e868ad53eee9bfa3952492c20b6d. 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/DEE790610213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2577c0f31558ba212b14eb2dd5b95ab065f9be4f1fc2c221b39ac67e97bb399d. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/DEE790610105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6b0bbd9eb149023c4289b60834fd7fcd61c427190b7e665702ac6c9281b7f13. 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/DEE790610188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x655db9d7be275f2a640d35a2d8b0f49c2affffc73943367aa0b938d75fd62722. 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/DEE790610189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0894768fa4f881f30e696bfcba7de67a52b90c199350652b5e60f44049e9458c. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/DEE790610194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4d47ea8eb8dd920de19b8132a45cee89bb2778dff19aa834420bb3a7de8a0d5. Chain 2 (Bitcoin): anchored in block 958126 (2026-07-15T08:17:14Z), 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/DEE790610197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9b3637f993c6b137bfa8916830076b7e6e66e1e9fdab7ccba345b7775400d20. 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/DEE790610199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82fa0e38e706f62c10ae0c44c8f123eaf26a3920074ead023dc17c4ae1b2633d. Chain 2 (Bitcoin): anchored in block 958493 (2026-07-18T04:34:53Z), 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/DEE790610201.
Idogo Music for Tai Chi, Chi Kung and Chill-Out
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2577c0f31558ba212b14eb2dd5b95ab065f9be4f1fc2c221b39ac67e97bb399d. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/DEE790610105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66fe3bf2ecc5ab7b4735e713f0802413c65a4952dbda14015f0dca6ef8ea206c. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/DEB630004120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfed5f5a1a163db7b3abb76840e0e18c27fc82fa59a1240846990efdecd944b4. 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/USNA10218711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dcb9512ba832807a5450826d4f2d2cb3cb8279462695ee3aa519bda12128c8b. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/USNA19512310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1de6d1a3a6c2a48eec03dadd1de0428c03db6f771d361fb305c1821f71d7fd10. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/USNA19312423.