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 0x39c7846886bbe8be46d100b26eb109eb7e9ee4b4712a8b184c8c0680703b2d30. 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/ae554da1-5319-4808-a3d3-f3b273d14a59.json and https://artists.proofprofile.net/proofs/artist/ae554da1-5319-4808-a3d3-f3b273d14a59.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 0x016d8b9a8d074711f8c73340ae9133654cb91505a51a04fee8f246a9c3de282c. 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/QZHN72316983.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd6c18669df4328796ef0bc758a1bfe26cd62a552d5a55147f46fabde0b47cde. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:08:38Z), 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/QZHN72316984.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a3096c47f5d2054480ec46e423d764a748f7835837b7feffa83091898f4848f. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T19:07:31Z), 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/QZHN72316985.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x302dae38658e109f927c0aed75e46a61ec81b7701f088ecfd82aabbf01b6b077. 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/QZHN72316986.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8e317bcd5fee341001b98280a309e59459d7ed3569eab971d47aeff073d0748. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T22:01:02Z), 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/QZHN72316987.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x813ea1566e5257a59cdafe807101bb1ef4d5818f4206099ff0a193781acf5263. 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/QZHN72316988.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7881bdf5ee04a93d666452e887e7e8b96fea79e8a6e3f34a7d76e1495d2a7e5. 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/QZHN72316989.
Esah Ainai/Im Hashem Lo Yivneh Bayis (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd628bcbf442b7367755ab5170740fe5f429e224e1efc51e975254585b649324. 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/QZHN72316990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bd256623dccdff8db70fe70d462839af4bd241e47c3914f249bc189cae28aab. 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/QZHN72316991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe13fd0b640b5124d393239f0b01395dd300b1d00a35b9ec18ff68a8b7b01967e. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T15:10:40Z), 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/QZHN72316992.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x261796b3b2835b70341d604fc823d6010849021e6c4b4cf86ade8f7bd7d70224. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QZHN72316993.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5edfcd29e1b5396bd641a6b7d86524e327b54679882019b8dd1995d9eb775cc. 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/QZTAY2335792.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48fdc7c949124c273d131331d5ef3b51ee15eed5c403d73db2deec84553e802c. 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/QZTAY2335793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d410322754c99b0db616adee16f3a5a9b9aea4796409973ebb5441f6bafbdc7. Chain 2 (Bitcoin): anchored in block 958830 (2026-07-20T08:11:53Z), 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/QZTAY2335794.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c25b661c7e5174d9d005cbe2363be97b27b5a1096de99be3794e97dfaf4a95d. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QZTAY2335795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x430c919902bb111be76147642ad78f357a990dcd4459b3da903da4899db2ef0b. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QZTAY2335796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88be8440dd9d5c7351c7f6ecbb2228150fc794a87513f72ac6339cc59952318a. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/QZTAY2335797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d196ebd381e33a2b03ac17b2bdc6c77730efc59feb247faa2a6eb0cdc3533eb. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QZTAY2335798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc9f9b49abbe4d570fe44a10aa54b3f5ced9409f60054dd901865cb138eba40d. 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/QZTAY2335799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x749d6c7712078f7d9501bb4c7183dda6d4d354ac12114f07c52e7eed4eddd9d9. Chain 2 (Bitcoin): anchored in block 956713 (2026-07-04T23:03:25Z), 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/QZTAY2335801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8156b38dd182c47ad8cb2b2a282a56f0274df5a731663adb4383da54df2afd2. 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/QZTAY2335803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87ca80230908f34b28ad0ecaa6042d7739f6f77f8d1a80dcc313352971f897b3. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T13:54:37Z), 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/QZTAY2335805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f7966a0b0d462fd1c3ed4b7021d3add09b463374b1b768ab057166875c90a9a. Chain 2 (Bitcoin): anchored in block 958947 (2026-07-21T03:39:16Z), 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/QZTAY2335806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x608d73f96746a01b9451b200524316b12b5824259f6831f452eefbaf7c19bed5. 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/QZTAY2335810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdae7f1bbbda4e18edd8f840df37a336f8c47748df832553c790d7bc3858d445a. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T21:08:39Z), 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/QZTBF2408402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdae7f1bbbda4e18edd8f840df37a336f8c47748df832553c790d7bc3858d445a. Chain 2 (Bitcoin): anchored in block 958568 (2026-07-18T15:23:47Z), 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/QZTBF2408402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x294d4014bb2bc18c12b84144eaa24366824737d5d7e210b5dca80282fbba05f7. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/QZDA52502571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a51a089b22bf62c98c7d99b23c818a1d543f1aa999e2d1d3d63bb82609f076a. Chain 2 (Bitcoin): anchored in block 958965 (2026-07-21T04:29:05Z), 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/QZDA52502572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa36a45050a6d0725e3cf788e3a18d27bafebb2e0140f4db875a7d815acebb6d8. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T15:48:23Z), 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/QZWFU2461775.