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 0x2da571aade90c89408a6de527a2e9036137ecfff4a7d75015cd5085a871b8e1b. 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/8c2cb65b-a6a7-4286-8683-49ba1c84347e.json and https://artists.proofprofile.net/proofs/artist/8c2cb65b-a6a7-4286-8683-49ba1c84347e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
ミュージカル「忍たま乱太郎」第12弾 まさかの共闘！？大作戦！！ 劇場収録の段！ (Live)
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 0x14330916b6ccc2856e78b66fa0421adfdd79d64d9a4caf4fa3cddd472c734f48. 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/JPR502206407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f0d3833d98104f02cc6221628dc00b93d119609eb5621400831bb406b76159d. 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/JPR502206417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b58e6b6e4a5b21bf7b49b7f1bd19076c08d0a4444c47ca196295357a3ea6f7d. 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/JPR502206408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab647b821e69d86737b44fe8ac61d983b04e3c60bd586a904b834414208def55. 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/JPR502206418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafc31ad7e28ffd615413b5d172f40f687df11f57bece1c78c909d2b09244a6d5. 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/JPR502206409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d7df124c7562f6644121c32848305676db34ba174be59908de8ad5bee37a101. 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/JPR502206419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fe6ec46c3f8df2124519eb39a73b12b4a3894bb83fbfc95115b4364552d2739. 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/JPR502206410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x516121ebbb565a931163ebf68468a2bcca2f582b0fdf294bf8edb883699f0750. 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/JPR502206420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c627f7354c43b716ae5997daa32d586f1e9575a34206b79e329276367282b30. 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/JPR502206411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa164ae8f72a2119c18031e2fb24cb411cf70e50a35e675781785e801727efb18. 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/JPR502206412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b753b62907556249318525e8659d8b1eb7d16844db208618e051a1cff033628. 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/JPR502206422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf60d4632079b2f3640f145345a147d1b9ef602547db5f94a6ed610fb56ebfe4. 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/JPR502206413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25fd590e399262d97d3ed62732eefa5700764751c1d3d6cf63defa86ca96c861. 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/JPR502206423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x399390f5d89b2ac8fcabd1f5a09edeedb57456c2bbc052f1b7c0b1dd88ae193a. 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/JPR502206414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b7a0022f4abd10ac5c5db6e197b0d5fc5fd2e7abd1b2d693f3c99d0750a9e5f. 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/JPR502206424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2b59272d78d2eaf989b11cc6b3c0bcfbb80ce34569bb7e0db2c59c600851ba6. 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/JPR502206415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b9cb7c2eed60e8fbaa2ab820efa818452ab9fcd954d8a7ff29f8527cf62fe11. 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/JPR502206425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4cecd80808839a8bbec251a9f225b87cc147a1bf50a5dd5c9c9f84150bf8b0d. 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/JPR502206416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e66033aa5c3d16481605265e6057281634cb9a6a6214d4f0138723671455de9. 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/JPR502206426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46003d7d306c93f5e10a9692de8a60c5c21e5df5675a7e59bb921d72f89fac9a. 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/JPR502206427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4beb5f06b0d474b68dae318feb1c6bdde8051f1c17923d424652368dd5fe5f1. 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/JPR502206428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27c416b0eb1663f11277cfc96a7bfe3640f706586227f8e1c4179fda06c87fd2. 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/JPR502206429.
ミュージカル「忍たま乱太郎」第9弾 ～忍術学園陥落！夢のまた夢！？～ オリジナル楽曲集の段！
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54fd7ea8d40f29798840e43394b69fb603c79f25ab1068e522480ac1ba134e36. 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/JPR502301114.
部下と一緒にご飯を食べようの歌
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x068c535cd89882bd931e5dc5d14a5f5b5b5059e73cb9a84b71258ceadf3cc166. 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/JPR502301124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb47a2257be9b1925ff94a5aed008bbacd1f4a26c590e6b3248f005386bc6c06. 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/JPR502301115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x774fe4f6f40f08c8d9d1aa096f01b1793edd88f80c6f9dffa112fb864316659d. 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/JPR502301125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb36a2d6ce8ed929b7334792661653d23239b363066ab4e0540c5f70673c4650. 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/JPR502301116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38abf9ed3685602b6d6ae8127116866439cb8d01aeefcf31bfb13c963c4a502c. 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/JPR502301126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7fb561adef0b09356dffe1efea3a096d07aa07e7cd1fe675401e73deccefc87. 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/JPR502301117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a372b1a72b36701e0baff993f416f76896dbb8aeedf50de00f99f157d0bf79e. 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/JPR502301127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61d64de3c8e27241f634f9e1202bdbc07b425f16bf868fc20c02dc77d4ef6d65. 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/JPR502301118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c431ee72af8f1093bbf03ece2da89cff0031a6f2a09db1b5eb97303a73ef565. 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/JPR502301128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e2e9895b265e9683278b7149aa766e8b54061608641c041c59d7611f4cf506d. 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/JPR502301119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7357cca80a94afb7b28803f37b9a5f32c7d87140daac3c689dc1fd16d5a533c8. 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/JPR502301129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57f4895359e208982c4db2d6363d0761d21776a7dd12c8341a4ea5c85e2d48d1. 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/JPR502301120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa70821b8ae3c2f9eef05be3c17e4619aa60d2576b2d8268cb7674f72858a29e0. 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/JPR502301121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d1a9a7d2b9c4ca48be063aef75faef53d76372ad06807873a7ee4b09b304d8b. 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/JPR502301122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x344672aa8f706321ac88ea9cd9682b7550ebc2d8970c156a77f306f77b57288f. 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/JPR502301123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16e3dbd8f6731f53b6d88ba42f7ffd6bab1c03faafd4c8e3cf88fa4fe8476061. 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/JPR502301106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x288333e71238ae43eed3ac73e21aa6b80ab9ba3b16867ed9818050d00bde68bf. 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/JPR502301107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e3b864e7f1b337a9a0a5aa498c674771d9b78d16058cbeac044daecb0a47cb5. 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/JPR502301108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e79aebeeef77ce07c6ab112b8286a3d58cc6602c6dba5a09377d2b215a4672a. 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/JPR502301109.