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 0xddfb9799a64b43665e555b5a7d92a1f4b59a2f55d275415a9603ece9f8bf88b6. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4e37196c-410f-45c8-9864-28cb2706d5ef.json and https://artists.proofprofile.net/proofs/artist/4e37196c-410f-45c8-9864-28cb2706d5ef.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 0x00448d93cbdd24888e7d5ef6314b7bb2ead5be44dd69d3b45d7f4190f0a4b1ba. 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/JPCO08118500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cbca7ff5275d8ab2cde5c599656464f3db22e5e1ee06b3053408c6c5150f1fe. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/JPCO08118490.
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 0x7547f2be887e208bd74ba1a0b3faed9dd29d0aacff03dd3f8b4bf27d0ef39e0b. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/JPCO08117590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb5845288337caf5294710b4bef49b458776a33b30ccf43246c4c5d9eb746b32. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/JPCO08113650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34f888ea6da389d5ebbe0ba09abee1f461c202d8f047d2016f2401195c476e47. Chain 2 (Bitcoin): anchored in block 960513 (2026-08-01T04:52:22Z), 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/JPCO08113640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a7d5e7e3327dbf78b7462e21ec25b48acffe69b9144aeb090201cea564dd21f. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/JPCO08023930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28a219e91d671efe2772515c0188538ba41e9770f0d8acf833c9dad63b1ba990. 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/JPCO08023970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8bef89c8e1fa55104d622f797a41cad6fc1e98efa39b0758cafeb3ee6d5e73c. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/JPCO08024010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26f59b64cba5126d277fc27b788cb7201182d9fc38fc11b236dc81de970091cd. 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/JPCO08024040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f6b8d24babc4d98117d3ff42952876a189c8baf2e40c806b942cc6de2fe087a. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/JPCO08023940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf44298043cf4200d3035405dc1ccd53aebd309956a9684626e9ba28359c1bd36. Chain 2 (Bitcoin): anchored in block 960314 (2026-07-30T21:00:46Z), 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/JPCO08023950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe238c76601018ffb9e4632da35c8940bf793b5a5a78a64e359a01fde401e0d3f. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/JPCO08023960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e5cf6acd9c47d604182672a563b0906cd3b153350b72ecf6bf4e59821525bcd. Chain 2 (Bitcoin): anchored in block 960513 (2026-08-01T04:52:22Z), 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/JPCO08023980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe42d2c204ab6aefef972e819e0c23e9e366ace0257cc95651415e3f52a36bb59. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/JPCO08023990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54a0ef5484b0ddccc4ff75dc567e6cfa35daf45d0cff0b03c76e2ebc704421df. Chain 2 (Bitcoin): anchored in block 960506 (2026-08-01T03:50:58Z), 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/JPCO08024000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x405db53dffccc067f959fab6a6bb0df9f250d7b652622bb811fddae2906189b1. Chain 2 (Bitcoin): anchored in block 960125 (2026-07-29T15:38:18Z), 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/JPCO08024020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42d9648a81fd4268c76d166af4278d1da7983b91683886473a95167a2964b12f. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/JPCO08024030.
Super Mix (Stranger in Town) [2024 Remaster]
SAD SONG (Winter Version - 2024 Remaster)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x414f8f777e5d59ee0ed13d3442643533ab4554273d37e36c5760af9a9bb74179. 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/JPCO08319010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd2bdcf312baee6b13680e1b4fd35cd1164fe68252f8c4b57ce094fff1ee6d3e. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/JPCO08319040.
Let's Rock (Japanese Version - 2024 Remaster)
Doushiyoumonai Koi No Uta (2024 Remaster)