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 0x857dc73f6a0afec01b36d413439b18ba610a4c7e08404cfac95c1f49c53f1628. 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/fd1be3e7-2242-4243-ac8d-6bda524dea72.json and https://artists.proofprofile.net/proofs/artist/fd1be3e7-2242-4243-ac8d-6bda524dea72.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe96c9469156da9aa0a3028cdbfebba920d2d7d00c4ab4bd15b1f2b5f4e7e897d. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T16:58:47Z), 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/JPU361500310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda06c5a5d19a6bbaba49722bffa2ebf56315040816516e98030861eb5d181b0a. 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/JPU361500304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae578b23032cafba78c342441dda0aa12dcfafd324622a824911ed0c343de4ff. Chain 2 (Bitcoin): anchored in block 958091 (2026-07-15T03:17:03Z), 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/JPU361500305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72ebdef68108b7876169bde5d79625fede3648145f5433a3c996ac151976b219. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/JPU361500308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe96c9469156da9aa0a3028cdbfebba920d2d7d00c4ab4bd15b1f2b5f4e7e897d. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/JPU361500310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d6c7d4a9d5d969ff67fe45da47f203549026245cdb5fb5bb90d496fcca0ab79. 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/JPU361500312.
Petit Cafe -Disney Ballad Collection Plus-
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8759863802135e93976039bc92020a0faeeb418f912cb4a28c378ba1e98a822. 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/JPU361500401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a0c1cc3627ffc237353404696a859c171eea5165b5dd11507af462a806d486d. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T08:53:55Z), 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/JPU361500409.
Beauty and the Beast (From "Beauty and the Beast")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6839291e8a41105f0c00e7b4a335af27fdd9345e229bd5bcb4b0348add986b4d. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-17T00:02:57Z), 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/JPU361500413.
プチカフェ ～ディズニー・バラード コレクションPLUS+～
スーパーカリフラジリスティックエクスピアリドーシャス (『メリー・ポピンズ』より)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f7efaaccab7d9171d629da1b6b3d2eacfcc29fd2eefb961743ec895abe27e37. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/JPU361500406.
アンダー・ザ・シー (『リトル・マーメイド』より)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x828dc8f60b873caac864144aad0be54277956002a2e3189839b28553681740bc. Chain 2 (Bitcoin): anchored in block 957766 (2026-07-12T22:25:04Z), 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/JPU361500410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb70c77cd0d220abb6630c330a33164ac68fda1f92e0f13c2513b9a8bf4ba67d7. 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/JPU361500412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c55fcef2caf455110e64e08a68b60092c7945f4f5c6ce5de406d2492559ea85. 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/JPU361500602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63693de8273f70427a88ac8b3e43ae33a41a66ea68c61a8b59934b605af6a3bc. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T13:44:41Z), 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/JPU361500601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeda6fda3c42c5b2369e2750d942f57d60c3fddab4a430eeb15a888dab77c7a57. 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/JPU361500607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa26f93addf8b884e93e93d2518c250b5983032633015f8701f116305601958da. 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/JPU361500608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f264ef52785bfa1dcfd93852be29bf54b8d418836448bcaac43e78d34d89b19. 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/JPU361500609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b3a76e41266cb20547527c51754250ed74867e2ba027fbae3807e7a807aab7f. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T20:05:31Z), 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/JPU361500610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b01f520a32a28b3beaa5e31f0c66bd5c54ba3b6904cf60e7e76f52de50d424d. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T07:52:29Z), 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/JPU361500611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62f7ca1c9a23c8a353959bc6979df4d83a17d6309ef8d182ed8e9579705312f4. Chain 2 (Bitcoin): anchored in block 957775 (2026-07-13T00:04:23Z), 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/JPU361500613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe03a2d0508d161eeed7261705e039d6649b6d124bb3ce40021d5140a8fc60060. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T07:46:46Z), 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/JPU361500606.
チェロとピアノとギターで奏でる 心穏やかになる、15の幸せソング。
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe748a1c43cec33845ccd17803d5a76427bb62053f960fbfe6a10cd3386160148. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/JPU361501202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c2ce427f67bd5187dd44ec2269b52019d4e129636016aaabd723a04928acfe2. Chain 2 (Bitcoin): anchored in block 958095 (2026-07-15T04:30:08Z), 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/JPU361501203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2124b082006200f742db0535d16aa7fefb502db841043dc6ad40e309aa49024a. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/JPU361501205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8f9b198ae238c731b3553dbed6dffcebd4211967ff6bbf9441538c6020f01a3. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/JPU361501206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89965c3e39a20fd30748ec9159324ac03a9a7fa68ca23ddf28ab62c620f95688. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/JPU361501208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a6323b17da6219346bbcf1753c43442680d1f41f5b4194c0981f7258da89d35. 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/JPU361501209.
にじいろ（リマスター・バージョン）
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ddc583a1f6e5fb37f9de779df1dac46cedc4464bf22031e2f50c81239dd7d38. 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/JPU361501212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c033d659f687710ebb59056cbeaac3dff592b1298a55cb866faf5fd7e057e3e. 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/JPU361501213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x270ba6c44c6f1215b528650170e4c612ba8c0ac31c778d534c85bdb1b050d73b. 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/JPU361501215.
15 HAPPY SONGS on Cello, Piano and Guitar
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c2cb6e6228072505e29ab3047d16f94b342f258e0e97668b02433d48b910e01. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T16:01:15Z), 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/JPU361501201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0d931e15303be467b3d5e8ea99cfd8beb112499e122cf01c59251d7eb900ab1. 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/JPU361501204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a6323b17da6219346bbcf1753c43442680d1f41f5b4194c0981f7258da89d35. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-21T22:49:42Z), 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/JPU361501209.
Beauty and the Beast [Disney Movie "Beauty and the Beast" Theme Song] (Piano Version)
美女と野獣 [ディズニー映画『美女と野獣』主題歌] (ピアノ・ヴァージョン)
ひまわりの約束 STAND BY ME ドラえもん 主題歌 (チェロ&ピアノ version)
ひまわりの約束 STAND BY ME ドラえもん 主題歌 - チェロ&ピアノ version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0d931e15303be467b3d5e8ea99cfd8beb112499e122cf01c59251d7eb900ab1. 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/JPU361501204.
やさしさに包まれたなら 魔女の宅急便 主題歌 (ピアノ&ギター version)
ギターとピアノが織り成す 都会暮らしの、12のラブソング。
ピアノ・カバーズ ～やさしさ溢れる J-POP～
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1616501faf66ce53ad89af405707088ab3e5e81cc2ef84ba4e4fafae6cf4f50e. 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/JPU362050101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16b49510a0e4b3d3c56d1d61c637bc2a5dbcac414c5fc5e7fe50be50b6380778. 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/JPU362050102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6aad36f3e6fd42451a4c69f808a87d338c4ed0f4246a919f4e2ada2a66bbe0c4. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:49:27Z), 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/JPU362050103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ae7fb10e512cace806e9ddce26257f1b386d47d36e34cf134c3ca0438f2e3c6. Chain 2 (Bitcoin): anchored in block 957805 (2026-07-13T04:34:37Z), 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/JPU362050109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00374da682a48b74c77ebf38999894dd8d89b6f0cb95be21fd870ec5b7a0f025. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:34:48Z), 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/JPU362050112.
Piano Covers -"Kindness" J-Pop Instrumental Collection-