Lund (, ;"Lund" (US) and ) is a city in the province of Scania, southern Sweden. The town had 94,393 inhabitants out of a municipal total of 130,288 . It is the seat of Lund Municipality, Scania Co
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 0xf82927f692647ce6f80fefef63be7fad6d5c1e7c6a6be2f9e16da6e2772433f3. 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/1477fc50-429c-4488-8943-30eca5931048.json and https://artists.proofprofile.net/proofs/artist/1477fc50-429c-4488-8943-30eca5931048.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 0x18e9392a5334daa48c22e4d3e603c37c1e672c2b9704c71834f042b6d13a6825. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QM42K1743996.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56c2b62b306d93324ccc3221f829f30b3a10138af53d491d58a43729708d1f30. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QM42K1731987.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaab6dbdd70f82683b413dd9a45e61dae250516fef8b64e96fc811c5c5ee566c9. 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/QM42K1768235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e68fc953c2b1d70e629e50a59db1878038d2a58ff6c9dffba166c6c062d4f5b. 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/QM42K1758410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1206c653a2dc1bfefa8aa21381fa97e94dd243f6a450b97e922a961474fe1ee0. 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/QM42K1708150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa42fd7faa4e67576b4106810ac04d971db5dea3bd527ea392fa9aef73b694661. 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/QM42K1739298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c3c14284056552d9a384b60dfdf58d8622d1d273cfaf7a0c5b2ab7296501ebb. 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/QM42K1761649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b0148731dd82b60a39f6b8bf10151da6f3f4777f6e3c8032155a5f58bf3b058. 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/QM42K1780845.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x082704d5d0ad9f85e898099006ef1f524c925ee694c117f3555eaff67af6876f. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QM42K1716952.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57d04f091d71384fb33839285f213555a262566f0e013b1cb00d732708cb21f1. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QM42K1715355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a2a670cee448cbc189295f38af90b0fdb1839e02b9c003be54020ab36a632b8. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QM42K1795049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24b6a91ce013c65132de6526cc53e694ae0733797758e42df5c6e547f942f50a. 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/QM42K1799108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b5d141b62b3db02e3c33c6ac5f285662f5b2d1111f7708a19fdb1f841f52bfc. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QM42K1605379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4c57b6df20f45aa55cc412ab9b9d3e49816843c6eaf43c1efa0779f26235342. 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/QM42K1611498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x473feb44c84ad068afc951e5a2f411ffed192eb57b9f19d9d4d4715c369a5223. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QM42K1605378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb174d312e7dbaedaa43ff38d39c203fe647c230cbb179ff35514046949dcd35. 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/QM42K1611499.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3a19fad680c9cd7c3ed319a24533ec7adec9345de4ba8873c7be1c4006fd0a8. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QM42K1611500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x945abc699b78c9d6fa7fd4ba86c1d242ad76fb6ce55b9a5194c92289b90c6531. 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/QM42K1611501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4f67d9be9f6ba6e0baffc8461e7c0d957df9649ed0009e374a093f2287b31f1. 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/QM42K1605376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d49baea4ab0494f6b5f8b5ee9d24acf9833cc0dd26f88fcad278672b0b611c4. 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/QM42K1611502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5dfac4ee17f392b60a9f90566e86a5161d82f783b82958f410c5c652acb459d. 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/QM42K1605377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87d71d1727f1d7a82223a7616cba2d48726dbe0c2e623ae66b7533615ab1332c. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZMHM2323367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf66989da0875c3a508c88123eb208dd3ce9026f5caa3647514539163fad3ba82. 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/QZMHM2325072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73c00d74337f777660e10dd332e34d326c638ca8dfc43a4298705f4328ada41e. 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/SE6XX2126821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13244d2d1aff6653d7290079355b219f6c73aeb9fa195fd9c594f911c7857605. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USUG12102351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bd1b3441464d3e79058512423d0c0eea1ce7f9db6dcbded9ab51e25f6ca7f7c. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USUG12100617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d73f2b239289d4f95aae1dcd1cd04f6bce3f2812e1f65624280a0ea3ab1ccd9. 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/USUG12000431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa688aa86538ba7bdc73d1b7819e01d082d5b913d4f3a8cfba0e96adee5173eb3. 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/USUG12000434.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b59f95831ac72bdf696ee78512ce13c413869eac335ceffd6a60a2807a3c827. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USUG12000432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x300a073f6887a6f7bc2c4f31fbfbbef9c1af61d95d02ad4c439222f9a02dca92. 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/USUG12003852.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a4cd690e6aabcf583b20e7972261764052d297d8bb5828d602dc7e6e0576d21. 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/USUG12003715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7ef96437454706e7ecb1adc012b95c763a198f0daabbdf791bf8e5461d152d1. 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/USUG12000435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x300a073f6887a6f7bc2c4f31fbfbbef9c1af61d95d02ad4c439222f9a02dca92. 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/USUG12003852.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a4cd690e6aabcf583b20e7972261764052d297d8bb5828d602dc7e6e0576d21. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USUG12003715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x335801d32f237aa14dc9e0500e1b30d3b40b7d0187b393d98d466c33a03c9312. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USUG12002672.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f3c21a8f892691bfadc310e39e81f79466d619bf6e0fe208240abc9f0c7edb5. 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/QM42K2031035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4817f724c3c8e715d6f254f0643e08adcd3c525d8501c1c38e8077f6c20f7e0a. 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/QM42K1939260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa21b62e1868227354367fd4e246399e391914777f79b57147476f183d02f634. 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/QM42K1936604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4720e70fcd1ea7f6ce42d5565a4afa8e49360bdfbc85853ac645b2f3abb5b6a. 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/QM42K1992119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffc61f44c6c8d487308028b975064e1a18b51dde375f092ce41ccef3b9aab4ab. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QM42K1896987.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1248ced3cd321735484d04b0cd7603010d1c52ad7617d2c299d5e1ef607c8a7f. 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/QM42K1767652.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcf71c4cdc172956c1af46fa4c929f9964490ffac56aa8469afd7cf0421a470a. 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/QM42K1615518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1199777a66b03b9f12eaa0aba3aa853c0319a22192912f6619e5bc77d9f17b4. 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/QM42K1611390.