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 0xa1ea86aaf67a646b20cb58f1805b948c9bdfc31d2efbbcfe9d414067e06d86e4. 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/c25be041-041f-40fd-8339-0878e9cb5c01.json and https://artists.proofprofile.net/proofs/artist/c25be041-041f-40fd-8339-0878e9cb5c01.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
We Are Never Ever Getting Back Together (Japanese Ver．)
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 0x2420aabf54aef8c5fea407e234393ad2fee014135abb51ecf039fc42a230ef0c. 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/JPPO01407460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae8cfb18f65417db43d05a0a69115997f8bda3b72db07b3e0f1fb492df79b0fe. Chain 2 (Bitcoin): anchored in block 958087 (2026-07-15T02:56:49Z), 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/JPPO01407466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e43a38dd1ae62ecdc139d9bde429a86adf633ac12780644ac7fd20298f7e3f7. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/JPPO01407463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b66ac668cb7a1c66a3bd53d41dd70a4ff80f34cf8dd68517707c0602e021198. Chain 2 (Bitcoin): anchored in block 959015 (2026-07-21T16:43:54Z), 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/JPH491401025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a9aca1a0eb5b2586ee58cafa604bbbfebe24e813f14c9d2cf747516f061597e. Chain 2 (Bitcoin): anchored in block 959026 (2026-07-21T15:38:13Z), 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/JPH491401027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe812c6eec5f87f816b980c699f90cdcc9f6d4454cfa0eb4984d776757c7e1e24. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T20:35:42Z), 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/JPPO01508975.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb48f47f128790f08c3f0140d264183dc90bbaa29a15ccb0f58716939ca2a00c8. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T09:50:14Z), 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/JPPO01509881.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3aad0209f3422110c4280a4be044301cbb533dfbfddfe9e66d7e6a97faa4d51c. 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/JPPO01509882.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c8f1212f3e8e6deb5a8cf9b4026d6cf03bf43352cb6d478fd1c049c390a7bcf. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T08:26:46Z), 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/JPPO01509885.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8d981f0941ef8f15d0e3111d2e3370ea78de45cc136a089cd3b061c2990cbef. Chain 2 (Bitcoin): anchored in block 956862 (2026-07-06T02:10:22Z), 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/JPPO01507495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f76c0ccb2dc4a56a755113f7c20b62b1f00b19eaef062bd4b561f4fabcdad4d. 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/JPPO01509887.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fc9710be13ac03fe1d0c796b2f941bcb43b0c5ae76445f7c10c443307655ad8. Chain 2 (Bitcoin): anchored in block 958908 (2026-07-20T18:48:15Z), 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/JPPO01616252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9ae237875e451b5cda72d9fc5a5385b18cdff2997a31d23c6a7717a67556cf8. 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/JPPO01619356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ac67fd405b524c68cba9dda22960339b82d56107ca7efae1e1ad23ac6d99f54. Chain 2 (Bitcoin): anchored in block 958988 (2026-07-21T09:08:06Z), 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/JPPO01619358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e81b41eaabbe79f6b42ac3c4fd7a24e60fdeba0d8503ba80dcf0a6111a3466f. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T06:12:52Z), 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/JPPO01619359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea689bf6c54a4d42c52207a4edfed01b088104d682be3d2020f16468dd7530d2. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/JPPO01619360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d3c2bfeb306a093731ba1e18750cc18b7a79e4beb20b4e02575215fdf0d5c80. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T09:50:02Z), 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/JPPO01622543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97353747149b1a91c361a6ff4ddde8ed655e9620fe937274a79cb23e683a757f. 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/JPPO01705804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x524b5fdf1c461e6c75ba934ebe9000679e5c557e0e918a4f42d0fbaaa31fde73. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/JPPO01705809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38147e7d26db074cfef01f85d99c8584b06e7e425d73a229ca84b966f6b9ff8d. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/JPPO01705807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x398c52c384e596113f179cf496f737fdda4be195523e0230db3122f9a6d810d2. Chain 2 (Bitcoin): anchored in block 957876 (2026-07-13T16:00:32Z), 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/JPPO01705808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa62e0f4c78898c1b1fcc3207b74da96a5dfcf5ea29b7ae5c16191d748f8a48fd. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/JPPO01705810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae459541dd5af5da893b54e1bd8c88469abf0c79e08636204aae62aaf02ed7d5. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/JPPO01504079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b4d63741ad6b15091bc8bc8dc1e8347ca1d1718cef17a4c9facf6ea3d15f71a. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:39:10Z), 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/JPPO01512330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fc9710be13ac03fe1d0c796b2f941bcb43b0c5ae76445f7c10c443307655ad8. Chain 2 (Bitcoin): anchored in block 958218 (2026-07-16T00:33:33Z), 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/JPPO01616252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe812c6eec5f87f816b980c699f90cdcc9f6d4454cfa0eb4984d776757c7e1e24. Chain 2 (Bitcoin): anchored in block 957874 (2026-07-13T15:43:57Z), 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/JPPO01508975.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd413bc77756d153985afce4991bb9db4952664f274dd3cd6599d697f76d4a6c4. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:19:10Z), 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/JPPO01407462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73ff631b51e372c7acf9c77444a813fb5e1c63df217bd878577c2c2c39f3fc7d. 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/JPPO01507423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5551ff2dd037c6fc1c3af12d1a23abca4f7a7e92762b1cb362fc1fd0d6b6226a. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T17:59:52Z), 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/JPH491401026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a9908d095d3244a9dac6f384fbd3205a43d9b2b3552c93b48e3352c3673ed59. 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/JPPO01619364.
マイサンタクロース ～あなたと過ごすクリスマスイブ～
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00901ea1f679fab28d065756822f278ac542ed3b491e7df3cdff88d6fc34cf0f. 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/JPPO01805965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb433c1e52d780ab96dbd9591e25a31894e975acbc7e840faa2a82133dd0a0cd. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/JPPO01805966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b17b42d6ab37ec21477266aa2a249b57a3957a5fee57d15294fd23134162e5b. 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/JPPO01805968.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92af91a1a296080491159480a5e106ee45b4c8651a9076e5070a83556c10763a. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T19:47:26Z), 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/JPPO01805974.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28154e615de5041ff044056153d49cf0f17efe7668be55b00deffc19dc2c79ea. 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/JPU902000081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6828c5196ef83615854aa5aaa827e2a72535c5b82b6d10601d12a6d3c674f720. 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/JPU902002231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8d04223ea06cf32af7a7c9de52c1bc820b34a0f5fdabbe83dcdce459efa353c. 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/JPU902002604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f212dfcc911c0712216d991a2d83a7661367662150652cfa4db462644d9dbb1. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/JPU902002904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x524da6422fe6e9d7099ea2697ea2db165dc65e126b742d6fe24437f874cfc5e1. 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/JPU902003246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13531c46912430080a77c4c8d3185b3050e71c791161a2f2c9bf043f910d3f5d. Chain 2 (Bitcoin): anchored in block 958733 (2026-07-19T12:51:21Z), 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/JPU902200496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49535b75627dc31c75bb75ef432ba05f5ee62003c09bda7405e7f6d3f36f8d9a. 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/JPU902200497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67b028fec00da34a6b578516f3c4b5133db411e020f9f5cb22de2b0e1bec483b. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/JPU902200498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc3a745503bc1f2ec0917f2018aed11fa51044b893a7644cfa179ee2b3b27307. Chain 2 (Bitcoin): anchored in block 958508 (2026-07-18T06:27:01Z), 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/JPU902200499.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff166fb8e54061f88fef3b3345149482197aab3e17abd99807804607933893a8. Chain 2 (Bitcoin): anchored in block 958355 (2026-07-17T03:11:50Z), 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/JPU902200500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb549001e228cf7195fd286da6430984a95ac8e5ddc26f4fae9e23529de14153. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/JPU902101526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68fe8501e1612f74e249f580e20c1b84cb9853fa17bcab7d26874f7ff04de43b. 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/JPU902200502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7df8779f849d47894b52e9eba34f2fe537a4f5b1b439746941a2eb528cd5813c. 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/JPH492301023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bd292e3179ee1203df8a75466ae08dec648bc5c03124e86a2df7d2e5b547b3e. Chain 2 (Bitcoin): anchored in block 958218 (2026-07-16T00:33:33Z), 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/JPH492301025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2253ba843449c788f8ed83bf4f7039173577c08c7c125c9f5f70392681e4132b. 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/TCJPL2564645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x455e8844a8920b9ed8a0bdc54af0ad06daaf42b2dff350dd332e60102634d525. 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/JPPO01406643.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x455e8844a8920b9ed8a0bdc54af0ad06daaf42b2dff350dd332e60102634d525. 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/JPPO01406643.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x455e8844a8920b9ed8a0bdc54af0ad06daaf42b2dff350dd332e60102634d525. 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/JPPO01406643.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6af6c2052bb801bccea38505f467f19d4f6786c3c1f2f77d37409d634cda007b. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/JPB601401280.
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