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 0x7a217422e54e9429221adb9e9e8ebf828e15d28326b84d1eae2fdbf8c0fba49e. 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/4f079a32-f765-4c41-864f-2ed1981d6807.json and https://artists.proofprofile.net/proofs/artist/4f079a32-f765-4c41-864f-2ed1981d6807.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 0xfee995ebb865429b3bc6aac9f4d468f2bbe2d49d8f420004de0b8b2fc6c35064. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T05:47:01Z), 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/TCJPI1826508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x493c2523d4b791a96a7bb9145707b69d9a4d473a1d13cbcfe519daf1269d9757. Chain 2 (Bitcoin): anchored in block 958111 (2026-07-15T06:58:20Z), 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/TCJPI1826509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8257729fe148bbda1d42305ad225fb1680037d08ac6a3eab003f3d36b33738e5. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/TCJPI1826511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x816d6d2a7fa3ea3099bf79d643b0b24e167b8f8bc90ff7345201aaee5acff362. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/TCJPI1826513.
もうあなたを一人で戦わせたりしない
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4579c5b2d4ed1138e902d955c1da9db4c24f0b93a73407d4c8eea1b0827246b. Chain 2 (Bitcoin): anchored in block 958384 (2026-07-17T08:27:02Z), 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/TCJPI1826514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6e38c8ec1eb4b0974c0a64a6bf44efe7805026ab7c0a5ab2d09a16f3949888b. 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/TCJPI1826517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95b8b59cd0081aa07d3175e46e0cd285b96728f5743e12eb8f0d8af0dad107c2. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T18:58:27Z), 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/TCJPI1826518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09179cc1aacf30985035ebb1fe358a1e9b8c6102f30be0019e6e7ed42859f96c. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T10:44:32Z), 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/TCJPI1826521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd02a85bd9a88128562bf1d7c6a962e42bc2d720cef01192544e770d4252d2c6e. 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/TCJPJ1905594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4458bb8250e8120bf6310d776c96e21f926a3820426476be5a7efbb72210bc6. 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/JPE561905576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf00f80a81a54bb9e7b662216c761fa9a5907eff8d4f125cef0a1e025e077e89e. 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/JPE561905577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc41c68006a8222f0d639fdff61d07f79771bc0d7506258f8ce8053cd7171244. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), 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/TCJPL2050345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe37b1f990e9b4c7ee8b7a565c423c1edd16c5f6890d01833a9d2c7a2aa1d07b1. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T19:56:38Z), 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/TCJPL2050347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b020fa0f09610533c0d168e24903c71b7a19fe5b4bbf25f057e155f2a1d8d76. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/TCJPL2050351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1fcce6db791346042ef7cd8932b2f54a793462ec04018d6da3284eee16f5d03. 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/TCJPL2050357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf357a563f02226cda4d5e57abc456734993c785ce642033b79c56ad0a2bc5529. 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/TCJPL2050358.
僕は夢を持ったままの子どもでいるだけ
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd171b1c695049c6881b87d117533f285d7969668ad0d1011da7613257bc190ce. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/JPA652105281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0852f84eb7ed9da27d337a5795b6d9d60833bba287cafaae4b33e0bbcaaf6bb4. 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/JPA652005016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaae2fd301ee22530e65cb42dc275b1207fce011bfd86466beab45ccaa51eec6. Chain 2 (Bitcoin): anchored in block 958417 (2026-07-17T12:56:50Z), 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/JPA652005025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc31b5082ca9520c6dd499be5d05b7b6dac546dc96c28f63e13a55e69f2ee307e. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/JPA652005044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b6688e6c1b94121ffa5da01034373dda5c6132dbe6931aa45fc967b5987be62. Chain 2 (Bitcoin): anchored in block 958142 (2026-07-15T12:44:06Z), 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/JPA652005009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb930dc68e69c24f9a40dc88f965bd526e3808ecbbc0446c95bacf42e292caf69. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/JPA652105280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd171b1c695049c6881b87d117533f285d7969668ad0d1011da7613257bc190ce. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/JPA652105281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x042826424f77793d2c6f1e0237554905eb46101e9cefd7b49942f9fb3e6634cc. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/TCJPY2333820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58759aeae47d18be429bfea1bc290f826dccdbe22065be9759cf90ac5b2c158d. 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/TCJPY2333825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bab6b190941d23762bf9993e66ba531a5407e7ca3aa77e31b6b28dc29569943. 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/TCJPY2333829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee3153dc34c1596744fb17855c535368dec1b99bb6b6b5b9f5729d5711f3c662. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/TCJPY2333844.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d826012b3675c620425e288d0b633e4997266f6cb7be113ad4676c1b769332d. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-17T04:38:25Z), 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/TCJPY2333875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40079a5ac0908c4459134c4bf571b4354f1670ff4279d4770db15810fe747161. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/TCJPY2333894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5515b33e1d2fd87e61547473ad0c6e69527c1297035ed782e5e5d86b1b458632. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-20T01:32:24Z), 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/TCJPY2333898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabaf2d1a53273e378196568fe472d53c1e8976c03149b6b6deef055c0147fb06. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/TCJPY2333911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2fe3959e9f659ea964eb72ce79ee53ab607462c563dbc56ba0c9ff41014475b. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/TCJPY2333941.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e5236d6c10c30ba6d7208004bbc58e82ad5f9df6033ff0e3cbb07f069b30d50. 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/JP92Q2301495.