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 0x3aec8b3c12697fa68b3ed66c901686bc6118a2996480b7854a130f4a72d504ba. 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/2f25f31c-b760-425c-a911-dcb06f380528.json and https://artists.proofprofile.net/proofs/artist/2f25f31c-b760-425c-a911-dcb06f380528.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 0x40725ff6ac9e400dcac2ee4cbeaa96fc7f94315051fdb6d2affbc92384804405. 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/USLZJ1609485.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeae951b067e253c585e64586742e93cd8001d2207e9c4dd73e604f54ee9f866d. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/USLZJ1671197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa92fb275834c8400ab85d5338e06d230a9daf088dec54fd9d4987b5ad8c767ad. 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/QZS1Z1625882.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e4c003e62791d0a850135f6c8d42a49729021c886e6a495a0afab7b11ffd4f5. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/USLZJ1714755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07b0500af542f4cf5b865979e9721a791bd54ad1b0f2de14f826d99b14629da8. 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/QZ5FN1724963.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x280e81e907f38d85c34801e0d01972b0f48456478b9bf69ca0c59a657f201163. Chain 2 (Bitcoin): anchored in block 958891 (2026-07-20T13:27:11Z), 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/GB8KE1756966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa566ceb6777bbe79d9b93f3422109164321f2afd78981c6b42c7a6cfe1124097. 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/QZ5FN1776825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b60dfbda0df9095546e1d071cff803e9f05a79d92bce302f385541a094322d0. 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/QZ5FN1793424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa08953f9ba492767de26e1f1c965d960754d5abfe690a5cc53e341abb26ebff4. 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/QZ5FN1831609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x682bbd0768f160e736a1f1c7dfc4876aa8de6eeb08ee83175e3179d793623296. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T00:01:46Z), 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/QZ5FN1831621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeab2f8434b61965da31a950b3bcb8d97cc285def89c2b1d08aa179b0b26f9be3. 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/QZ5FN1843950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fa0b0248fe20ff9e2ec5b2dadab55b4b0e500c08b73b523fae775ea1f68eb67. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/QZ5FN1843941.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45bd9885c3e29108f25ea1ba55a6738b2ceccffdb257bd4908db40cd8fdfaa59. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/USLZJ1877180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x338d53d35b4eb9d95dcebfdecb3728f5f93d17b08058e86816679e3547ff76b3. 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/QZ5FN1988913.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec406fcaf0a466e34a268501fdfcdc298c1c625fb89594c1ab6774caf9318b6d. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/US83Z2120911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x459d30d0811c0a40c412cd08afe78cf3d1eb3c1579284c6f19850df4f1ec8a94. 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/US83Z2120912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea7b050070528ea9a7dd797a48128c390a7b068a1d695fafc38e1d50d87f891c. 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/ROROT1917501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0c498f9bdeb38bd22ccfb38d4c3644d0fd809d17c27d97baae8f5cf1569a609. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/USLZJ1987967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x831c6d8d9265db173e5b5f0aad88131e6344d5bb1c8d5d404e37d3b7df39b88d. 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/GBWUL2045935.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x597a4f5b3a1dcf2e98f17d5e0132502e9e46157e787cb8cc40a3cdf12c307748. 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/GBWUL2045938.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c98021fdbd1e914a1cfb0f7b3b5525cec7ad60f5484b177bb8d9643d95fa612. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/QZ5FN2050076.
The Sun Will Never Go Down (Meines Remix)
The Sun Will Never Go Down (Incl. Meines Remix)
The Sun Will Never Go Down - Meines Extended Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2567cffa7336523161b1550117fbcf92c4ee7d46fdeeac594adbd81a6a97b591. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/DERN42000383.
Selfish Things EP (Incl. Darksidevinyl Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa838423cf95d77649f0475c28a2b2bfd5c9124995bb19de043fbe1ec24d59afe. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/DERN42100102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6412a2de0c2996634ed703e8168c64b6c150d38203c9d67c0bdb2539230f7b19. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T13:01:04Z), 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/GBRKQ2136524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7649597540cfbad8411fbe5501932fa3ad653722abd46ac688c188dcf72181b8. 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/GBKQU2184181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a179ec394af88438622ddf7797d9efb48087d6369e7cc714eb086f84b9bcd44. 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/ZMA0J2100041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50a497678d92d0be9feedf7da8c36e58f1eaa39b10f127f4a5319c44b7d3d9d9. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T11:08:30Z), 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/QM6N22423363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f30d0e48cdc41510c1341f796b1cb2783b4a2d5cd85b78fe74a7a479e9bffe0. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/QZTRX2453295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd1014c6a812ddca5bf05f05649db9df53a232873ba63b81b7d8fc8bde37b846. 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/GBRKQ2544719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66ba5e22ff535aa6259136e96470e1540f4ed55b0e9536ef5fe37f7c4fe2219a. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/GBRKQ2544720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa966460ea33a86eb3f1fd7fa48224b93a4efdce952cab69dd3a7aa58ec16d7cb. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/DERN42500091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea3e257ec451e7bbded2e2186c25a40a67f89dca4b634b298a03d3fc8acb547d. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/DERN42500092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed869d46f4bb1a7abb15158e760518386c373cc9b3db23f16539a4a1aa1ad203. Chain 2 (Bitcoin): anchored in block 958121 (2026-07-15T08:02:12Z), 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/GBRKQ2544727.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbde01f0eb860cbba3d21f222da4625b004634a9dc1091e952801e3cb4653d875. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/GBRKQ2544730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x421fce5212d57848c6d4685d2438b46d7b1af54521b1815dd4ed0b87d768fd5e. Chain 2 (Bitcoin): anchored in block 957779 (2026-07-13T00:19:08Z), 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/QZWDD2555382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9359ed971947241e4e589ea41977816ce298c13c9605d31f600b7225a9cbbee7. Chain 2 (Bitcoin): anchored in block 958251 (2026-07-16T06:29:25Z), 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/QZWV32598697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04314a18bfb2f5560456f839fe48d2d7ab5bb78e9a4fff9e65033999ce9aa85e. 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/FR6F31716900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x649e2dadcb8d2ef3e0c87fb2fa38b8c7f2dc6295ae39024aa9bdcc4fc869eeef. Chain 2 (Bitcoin): anchored in block 960381 (2026-07-31T09:50:11Z), 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/QZ5FN1803558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x778fd3d02700b6c07b95c7206e504a82c47e4c51e5fc55e7fd524cb1e0025407. 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/QM4TX1741107.
Golden Ring (Sam Popat & Andre Rizo Deep Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb19dce8546fdd23065c03cb388f20eabb72e7af5d717f39011525933a5c9913d. 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/FR85U1700040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7825904d5cab3d39d4551469c70f52905e8d1a517844ae6ef2d4a02b9e1def42. 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/QM7281714591.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bd41f424ce09dd13e671d71da7c06ef0a6838440772520d2977aae8822db7bc. 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/DERN42100321.