are a Japan-market six-piece group formed in 1999 containing Kate Pierson (of The B-52's), bassist Mick Karn (of Japan), vocalist Yuki Isoya (of Judy and Mary), Takemi Shima and Masahide Sakuma (both
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 0x90149faa8df91b84edf9d1b60b172f9f44d761d230186074cd46dc8982472264. 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/d4893804-0ab3-45d0-9507-1814c8464495.json and https://artists.proofprofile.net/proofs/artist/d4893804-0ab3-45d0-9507-1814c8464495.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Heaven [Boywonder remix feat. Artstrong]
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 0x1d04ddad253a2f95947a06164edf6f72460ac3a5181dde4bc98e8411ca4c5e0c. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/PHW010200564.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15fc0499863602946e585ee47f9b0e1c3ce8e36baa39a6d095765bedbb01e6d1. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PHW010200561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x099b4788b44cfca7ab29725eb4f0a84c460b6965e53229c07d01759d93ad57ed. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/PHW010200562.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f97562f19ca43146d67415ea218983de9a2fddf836115d0ca9778312b1dc153. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-15T23:25:50Z), 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/PHW010200563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41400a03a3590c28a237cefcb138b4e00540929399218e26f99fa7196a0fb9db. 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/PHW010200567.
Heaven - Boywonder Remix feat. Artstrong
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe212f5f5a6c2005443b9a350e50edfb2da4ae49930cac4fde12d682247f22df. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/PHW010200569.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cd68d2c31b9aebc684e637abf8a4dcb8e9d714d12c11560b970d7136550da03. 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/PHW010400670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b3626fe05c12fcb3da17c28ea08d5b01c43f29ee757f6ba87d5f82a667b2d7a. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/PHW010500761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc17860835635b0f8cf081f8781ce8013e0bc4f998a94968d0bd5d01e602011a4. 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/PHW010500766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d7cb296b004219ec29dfaebd168f3f28dc1f8abe75bd1fc2e6e820801183fad. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-17T00:10:52Z), 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/PHW010500755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc93e720ddbbc78720892d9e794c5e019874999b087c0300c5854a2d87d8ba15. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:32:53Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PHW010500757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fa5d7d0dba7919bb7e22ed9c973fd8f712a8864e68b2fa74dfcec999158abd6. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/PHW010505772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0421af865945667f5cca4eeca1fa18c10fff8e5a86ce3f3edf66e5a5d7c87aa7. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/PHW010500770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a59e0ddb238729d047b828b4f053cab67d2de4ac2c349aa631543a43a3892de. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-15T23:25:50Z), 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/PHW010500762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94231b1162dcba509434284c3003952068c48b486a1a854934eb048e0da4f816. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-17T01:02:06Z), 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/PHW010500769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e448136e4eee89c45f65b2f3eeb2b4be8887082e0d51023fd1a62264468b9e7. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T09:16:54Z), 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/PHW010600921.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf58430c53c390c2146c2133cef5d80c2729d44f42babe45e3f04f961e9e73def. 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/PHW010600927.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1834c9922b7f1b06bd5258051de63b1c8226b007405f77c7f20a2e1f1fd2988. 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/PHW010601127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63c118b0741209c0f847baf75d7cd135eac7fbb3115f236b7e9e163a04a6b84b. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:22:01Z), 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/PHW010600930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd3c70e2773706b29d717c222f763cb300d97425e4428a0a9801c42917380570. 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/PHW010700701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fd5616836c2e9694568b34a53577692223a74b95986ffcdafa3166318311758. Chain 2 (Bitcoin): anchored in block 958992 (2026-07-21T12:04:48Z), 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/PHU011112206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee4c58da3b6e71ac20d475c817393896376682f2641395b4e8d0b6dca0e358f2. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T11:29:01Z), 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/JPW462475412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89708a957283e910fedd1eb020ec8bd280ef751c2929433e7db890d518b9fe4d. Chain 2 (Bitcoin): anchored in block 958697 (2026-07-19T07:58:24Z), 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/JPW462516774.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9487b07f3663653dc09ab34f2fcb40ca43e71db270419e35945e1b031fa92b04. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T01:40:34Z), 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/JPW462532036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85a323e5ab6c8e54f18f8d4bb658bfc0cc7d71b94e764ca1a9ea790d419da2df. Chain 2 (Bitcoin): anchored in block 958611 (2026-07-18T21:24:44Z), 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/JPW462532607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7cfeecabfd900e09e01e05b5b0906232628816a91137641eec6b0012ffde618. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/JPW462532608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x385c25dda9534078ec0e23908a9f17ad7696ba43af23e092a52238c01fb1c15d. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/JPW462532609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ad31304eeae7b3a8cd73fa050e63dc4421d75512a75c4bba1c4108c543a2184. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/JPW462540024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x845096013a12b8045e87446020c4a234cbffc879294a6c804dfec34a37a49001. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/JPW462540025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27c63c5cf7ff7dc17a457029247b7a985873ad42104a236d611cc1c8cac5f5a4. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/JPW462540026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81ef436051d02846f98c196b9d15b101703ac58ccf4cf9d03fb7666adfd11b4b. 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/JPW462540027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01977524ecfb901ad7f57fc38f2b86a82cc0b8d03c1bad6cf2f48077ba6c40d4. 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/JPW462540028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd23ae0c0e5815160bb004c47330550296c04c10b379ab85b845913e88bb30be. 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/JPW462540029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ac2e06bba98e24b601fb05e347423a8081d598c8587bbd529c850e913df6e54. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T18:38:48Z), 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/JPW462540030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x446c92e2cae9a1c12b09013fa7ce5c1ba0177d8b44a957c9568b1af4d08b12f7. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZHNA2554981.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54131f9a5c3ef3adf2db32ead188b53b151446fcc617e8a6118fef3d36568e7c. Chain 2 (Bitcoin): anchored in block 958501 (2026-07-18T05:33:04Z), 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/QZHNC2532223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x881b22ef4f484d7384c40a28c81bde1600884f471c55bb4410a7665097a637bf. Chain 2 (Bitcoin): anchored in block 959109 (2026-07-22T07:21:40Z), 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/QZK6N2518403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89c7d5d3dcdcd0607b63057165cada4826ca74a316773397838d245a7d8a3bc4. 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/QZHNB2597559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54131f9a5c3ef3adf2db32ead188b53b151446fcc617e8a6118fef3d36568e7c. Chain 2 (Bitcoin): anchored in block 958992 (2026-07-21T12:46:26Z), 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/QZHNC2532223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb48af6d03f360fa11b419b343590f392b1545d185a2582e30406ac0f3ae4690f. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/QZK6P2518380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc07e3b6c75b902d6ad618ea0641f957e83cecb7c05197a2acca5e1b698e45355. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T19:56:01Z), 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/QZK6P2518381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89c7d5d3dcdcd0607b63057165cada4826ca74a316773397838d245a7d8a3bc4. 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/QZHNB2597559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3349a48e654fc10117270a0e7f7034915d2d6601617b747aa45275b8881f1e59. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:09:45Z), 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/QZMEM2581952.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cedf42b9ef871154029d3cfeebee79e6a70828018d3a2e722e0e1717bbefbcf. 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/QZMEM2584479.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbab8c5ac61a37c079a4acee3235cac3634630765d4939c1a1ebfe866b6a66004. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:40:49Z), 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/QZK6H2578079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb766a275bd7a16cf73d5709c630e63fe6c44d0da55a3f42e3e2e32cf81764fba. 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/QZMEN2591577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb625f73e7603bffd588bfc012a26d39014ad3f9824528bec51570b52438bfd23. Chain 2 (Bitcoin): anchored in block 959089 (2026-07-22T04:23:26Z), 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/QZK6L2557521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cedf42b9ef871154029d3cfeebee79e6a70828018d3a2e722e0e1717bbefbcf. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZMEM2584479.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa88e7383d8d575178c42c71c7396f6bcbe264e81db4a049f35b4cafc07a37fc3. 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/QZNWQ2563635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37e378c4d7515ef4aec6cd418cfb7f59fd74e9277c57988c92ccd47b50e8cd46. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/GB8KE2419647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fe5e8d436cbbd37481d11e01fa6cfd528319aa82b43217393cb656862de9b88. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GB5KW2201395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35711701154db7ea51002c9e1c71dd1ac94e0978d01b9ca3f90946b7612fe492. 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/QZW9K2427357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11185ae82f016d1f566173536044929e6755727fe99d9bd12475ce6be7a6244c. Chain 2 (Bitcoin): anchored in block 960404 (2026-07-31T13:06:57Z), 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/QZNWT2164175.
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