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 0x78834712a01533133bfed8723fadee3b555f88360a41ecb39bb1e5144d2ff111. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f5650dd6-838b-4931-9317-6634ae60128e.json and https://artists.proofprofile.net/proofs/artist/f5650dd6-838b-4931-9317-6634ae60128e.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 0x70ec28cd20ff86d94e7cd25123c9a742c78898025808e45ef7f08ce9a4584a3e. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPW562101233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55dac82056e350326a5a806853e9cd7f02f87eee6b71f6b32657aa0f752ad12d. 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/JPW562101236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a0433d1c568e70db6c88f2c055ceb2903a070a955f5aa8821ccb0c401eb1ae2. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T03:20:13Z), 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/JPW562101238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25fd38cb803b947e2cdfbe339963dff9758d5c97c2ac18cbeb1108e7353b15f1. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/JPW562101250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77dc9d4e0cbb603ccdf6ed58e7ffa65daddd767b6bb399e65069e8d5856cb79b. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/JPW562101116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6eacaba32aad755e07a6dfb59e0ea97382d3e696f1c5b66ecbb8770e715b746a. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-21T09:01:23Z), 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/JPW562101122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47910fb6f7dba2e0dd5fdc425cfdc63c50cc8cd694f6e66ac3f53767d418c892. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:53:09Z), 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/JPW562101276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48f47ee93d874a6fba768dfe088ac5568d5b50339b5cd03f77deedf424b0c72c. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/JPW562101277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc61bdce1fb2ae80356f54334eb76c294b390a6d8e84d821ce745bb1f5379300c. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T02:38:53Z), 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/JPW562101298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72e007d451f205cfee8ba4b95e20a200049e37d5da86b1b024cf86552f8a7348. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/JPW562101104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc5f7faf3143d80eb951c3ad76654c9fd1b33b9dbb46f02fecf40d0a396e16ba. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T04:36:38Z), 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/JPW562101141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0ac696090cf424a7b5aba802c4aa9cbe6590296cfb0b75c890d64c3565735f2. Chain 2 (Bitcoin): anchored in block 958945 (2026-07-21T00:35:28Z), 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/JPW562101352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c69d6b468b58dc446dedc2824beef9b5bc93a668b4ea1678033b1a288d1da4b. Chain 2 (Bitcoin): anchored in block 959076 (2026-07-22T02:23:12Z), 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/JPW562101354.
EastNewSound 5th Anniversary Premium Best
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8851621b64b794762810477bb32036355226d0cc42dfc3b4c6f436e7bd581da0. 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/JPW562103483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22415da0e1845634408b5a2da6382f627a5b58d4e7164b3a459d1453acec9167. Chain 2 (Bitcoin): anchored in block 958908 (2026-07-20T18:28:46Z), 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/USV291435350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde1255bc5249cb18a0e5c9cf872500777d39de9675c415ff201c82cb098b5346. 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/USV291435351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd35207fb6ba503a2823323f77c4163d6ce4bd075ecb904b0a1c5fe9519bae9c6. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:29:01Z), 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/JPW562103620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fc3edaf98eb3ee6643765d2c0936cbb7f8cf5d38938e63e79ebd4a7e7a10091. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPW562101203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0f1475b0fbe3a6a7329139d08e51e1abdfbfa5f7dec3619c320d844e039b4b6. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T01:37:33Z), 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/JPW562101204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe551b59a93bae1b01a362520e388dc3a54c52ccfce33a42f613bdaa4e00d8a54. Chain 2 (Bitcoin): anchored in block 959071 (2026-07-22T01:31:21Z), 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/JPW561904358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20ed930f0674b7bc26c1538049c235299d9861c94dd94c4f45412d6e762f5968. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/JPW561904360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5efbbd9fb8bb47c2d281846e664477fc763ef0fc016c3e3072d11645277a1aa. Chain 2 (Bitcoin): anchored in block 959071 (2026-07-22T01:07:41Z), 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/JPW561904364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8998e8c46f32b48de497434722c193bfe85f4cc5dca99b5d43e4209ab09f6914. Chain 2 (Bitcoin): anchored in block 957690 (2026-07-12T10:16:40Z), 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/JPW562103690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3178e20532438cd13aa24e658b0ba8034ef89ab1be88bd276a8c5e9f3f285ec2. 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/JPW562101181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a12a8aacb266f70e977a59ce991d4a0225eeb35e6c7b899e9fb66e7e6272b68. 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/JPW562103705.
Bad Apple!! feat. nomico (Nasca Remix) / Nasca feat. KISAKI
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x212232efb55087cb3fb1135a4e3c0f98f6d47c1dfbde1356e65f742e63580ec0. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPW562106208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba095415e3c96113a29b956cecc93f80e426232a5becc2dcdc24091da3464603. 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/JPW562104394.
緋色月下、狂咲ノ絶 15th Anniversary Remix nayuta.ver
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb380097d6e63eb831e79abc2a1bd8207b50ad796ce6ac2105f962c8a40c40d34. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPW562111174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b1c0b4499af5f02e7524893e29c39c6cc6f6b22796482d476ca2ebb61a4cc01. Chain 2 (Bitcoin): anchored in block 959069 (2026-07-22T01:04:03Z), 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/JPW562111202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b8e1e2fa05d94a17942835bb7d9389a9a9c8b48f59b1bf269be0437551b2e74. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPW562111205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41db3e347f60c6a4a5763f081dfc77334c417e8cc37a10a5f0f8e48a2b3492be. Chain 2 (Bitcoin): anchored in block 959080 (2026-07-22T02:37:34Z), 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/JPW562111206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cde11b0ab39b8ef6965615fe076c63dafaf3347a542de0750191aa0635c83c1. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T21:02:26Z), 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/JPW562112690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x668563963afc683c912280ef8d41fe017b504b3938d1ddabfeb40d36bf8a4aff. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPW562103219.
緋色月下、狂咲ノ絶 [Tracy Remix] feat. EastNewSound
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26ec45423c6392477a0cdddcb1acc5473f49a71a6c513ab982cd88c4736cf91b. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/JPW562107421.