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 0x0484d62679d36ecb80848df4e48a3fa0d0b60f68c3b671edbe85bba06f3afc0a. 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/71e849a0-bbbf-44e8-854c-7cdc841b4322.json and https://artists.proofprofile.net/proofs/artist/71e849a0-bbbf-44e8-854c-7cdc841b4322.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 0xbdb341b8a699f43bb16393b08e4b537c118c0f8b21ec5144ad979787f39fa441. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T18:54:07Z), 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/USHM22014303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36fc2b036e9d8b1e0c5f0d226df5e2d36d9c21063797339064c27b7243ab818c. 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/USHM22014304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d66f39eb686ef972f325431c9c1d4c030a4c4ce4ed6c81064213f4643fb5cac. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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/USCGJ2255854.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8081ce2892d984c8fd97f6676de34b88463dd79511793f0fc82edb4a54cae31d. 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/USCGJ2255855.
Rather Be This Than That, Pt. 2 (Deluxe)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x729940cd9bbc96d7590f080d496c14cb4ce40b1d8bed212beab0b2000450177a. Chain 2 (Bitcoin): anchored in block 958834 (2026-07-20T05:55:47Z), 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/QZTB42206021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40d8854a417b8c1ad1bae98c808f4d70aa920df13476738b00abb1d283e6d1b1. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/USCGJ2324943.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x368907cc6a48555ca4858374266e160cde708bb4529ae3f3fdd437a6d35baf2c. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/QZRP42342644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70c45ff75f688d05234ebcdf4b0c8f3408e6f9bbdf97d175026590d0526385fc. 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/QZRP42342646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c4b7739a042a9b7436b67f25c66c6fd7c637b049d29f7e094d07a9fc0c2ab5f. Chain 2 (Bitcoin): anchored in block 960509 (2026-08-01T04:30:37Z), 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/QZRP42342647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87d4e2554dd2fee2b3d6380daef7c1d50bdebd98574fc44098572a2ef4b61192. Chain 2 (Bitcoin): anchored in block 959013 (2026-07-21T13:39:11Z), 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/USX9P2373880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15527df1cf0707a8ecc4b9af1198943d6af596fa05b299289d4ec05bfa94346f. Chain 2 (Bitcoin): anchored in block 958571 (2026-07-18T15:39:25Z), 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/USX9P2373882.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaee5fb71343b8289f5ad8ce1324ee32760325c4908198a89c4540871023dcc08. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/USX9P2373887.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27783364710fcf65e7e0a521611fd396d22c452a1df568e36f4427c3ac7a6fb1. 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/USL4Q2411165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdae367d2b5c06584419f415ff27a760c9d1921f65c3f312754e9df2972c3a4d7. 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/USL4Q2411166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87f56876abd75bc56bec44a91f67a33180d7f1565efe9ee74fc3c3294445bb37. 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/USL4Q2411167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4aea1e9f1d895ee5048f38e4c6fbc3f6ef743b1beedae9b31a2b120613a22fdf. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/USL4Q2411168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6f5ebfda8e090b674efc24273202fe8b07813dd33066069436ee6682154fc28. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/USL4Q2411169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefff1eed9bfdb2443f82c57279706fbf4be3dfef7ed4b67d02cb6feb11545522. 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/USL4Q2411170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dcb14af04d2d7b54f6eccd541970882699f7c76cf0a67d3ba92f1af8b122fef. 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/USL4Q2411171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc39a4d2811e198746caccf133badf6efef003679fc54137f7edfa9df2f007c6e. 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/USL4Q2411172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9347b9a5cc7e8072a7e629ffbb922c36467a86b5d368dc5338cf6603734f04e2. Chain 2 (Bitcoin): anchored in block 960241 (2026-07-30T09:58:01Z), 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/USL4Q2411173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf0d94d6fcde12550b0793f874be0d611cb64e3548759add1eada3fe023f867e. 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/USL4Q2411174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d37065b81436412ed6844684bea1670af844e96482d72c005ca0cb2e9ce7622. Chain 2 (Bitcoin): anchored in block 960193 (2026-07-30T02:05:19Z), 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/USL4Q2411175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc85b0540d73d15637ba106551ba6318cfeec8e393d95be36139c2482ee171b70. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/USL4Q2411176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d65c45e16045d70bc3c82227709fdea5f270e68394ff1e88de544e0b4850c2f. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/USL4Q2411177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1383e178162b8abd52f8b23b4c40ad68de9f00f6de40c46b2bc6f02de87ce887. 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/USL4Q2411178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62ea8c3eea5a677cdcd05721c116e77e1902c83b1bb53088a653be95dfd17551. 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/USL4Q2411179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28c77bf5968b87292c4369f0b32d808de809db8f7716d34d1116d595029a0999. 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/USL4Q2411180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaeb27e631e4dcd6be59feb42e30de870b3c31c44fc428670061f9f6470110819. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/USL4R2470287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xced0807a77f8b9b27bc3d910eeeae84ade73daf0c7b257a63f134e7b0ebca826. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZHN92572548.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55e0ab4e1e66fc38ea15ec787c32c8e6b001d214150783b55d7d367bd162a3f3. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), 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/QZHN92572549.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x637bbacc30ed48e01e096e4d4976d3b382c56efa32a7558349f9cbd79ac80214. 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/QZHN92572550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59fb902816672b8f7eeeb2c87ad910ad9c45c351677a0d018bdf59823de75f04. Chain 2 (Bitcoin): anchored in block 956861 (2026-07-06T01:57:57Z), 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/QZHN92572551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f3c7bafde41934b6c94d06b1df7ad1b41eb80d2c01d2f5ed853b92f8ca15608. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T17:53:56Z), 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/QZHN92572554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0994dff7b079d91b2e2b61749866ffddb77502c1b731acca4a75e3306ad61f5c. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/USHM92571784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61507648f385370338bc311aab13a2658b6ed4b8d643569e5ff9f57e45ca0349. 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/USHM92571785.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb2c2598cf885717a15fc6a8486a7134f9be1bbafbe44beb0a1a2244e16549cb. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/USHM92571786.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54894673ce21b11e5575806944d886061a4a534d63bde6604519ab17970aace3. 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/USHM92571787.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0532ed972e229fa46877fd5b2ab96216cb0a89494985db970d1a9b30ccfc01fe. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/USHM92571788.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6123821189b47f3bb162f5256250c12c4b7655259bf2a567b96899e3bb1e679b. 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/USHM92571790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x811d9bf204ac34bce460763e9b3df0260b6d0e47d2dce3c5c49ec5054f78b48b. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/USHM92571791.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x100110067777735d69f74de48ea7b3cde8e2601bb40f05b955ecbf1b58901479. 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/USHM92571792.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb78130049d001b3249e26b8d1444266540b717e81dee2cd72fe8ac203f6e553. Chain 2 (Bitcoin): anchored in block 959094 (2026-07-22T03:33:16Z), 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/USHM92571793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d2af25e1f416b268aefb2f0dd70750f019cfa3a653bfbfdf1497eba349c4246. 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/USHM92571794.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f09867738d6d40536951ce17144749c88483ef38d80e34d8ab2b141b80d2970. 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/USHM92571795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x687ac87f1aef992c07637954c8b369e69ab9d6630403aa6a12ce68b48779dc6e. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/USHM92571796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd749b271aef97c9788d23f8ff6972a69e41f2d395c58f24b80e2d8de215e8c04. 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/USHM92571798.