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 0x7145ec8560df8402b11c1fa247ad79a2816d5c6274c5823e2d9fc7f685c8aa21. 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/3f78bcb2-866d-4a83-97f7-d646cbc382ce.json and https://artists.proofprofile.net/proofs/artist/3f78bcb2-866d-4a83-97f7-d646cbc382ce.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 0x11b80b3be56e4c1544ff1d6530731ef02368bce2f0e5278480cde20ed0246d4b. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/JPX601800129.
博徒2020 feat. “E”qual, SOCKS, ¥ELLOW BUCKS, AK-69, 般若, 孫GONG, R-指定
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4081a4f7e0561ec2c8cd81b2b67d90ddde1cd180f2b8726c1113dc9cdb79fb33. 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/JPX601900019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbedf14d1013bf161b45406c57751056cf686f537430c1205b47133fdaaef312a. 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/JPX601800130.
Dream Melody feat. VIGORMAN, OZworld a.k.a. R'kuma
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55db9363ddc58a520946740f035953f7bdf7dc22add5ace7cf2d9ead30ad34fc. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/JPX601900024.
DREAMS AND NIGHTMARES feat. NORIKIYO, PUSHIM
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49b90aaab0d1105bdacfdb4c8debe018a0cddd280dcca0a9880774d161d4e226. 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/JPX601900025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbfed8cb42a7a2d1e801a6da5fe2e318635ac1aa27aac64b262e997257c2cbe9. 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/JPPO02003551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6ab450705efa9e6617e4fd9d0e55ae75f02791d4f97905f6f547581fa11fcf5. 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/JPPO02003552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0b522a44f08071957f4e514a540f4f1611d89b7c5fa348b38fe587027bf1a3d. 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/JPPO02002807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2bec645f352007740c5c2ad32b07b5ed2817944d36a31ccf141c30a36f9bc00. 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/JPPO02003554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd90ba528796f15ce26c9a7f2f9deed1d481289cc8e798de808d24ff7402cb4c2. 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/JPPO02003555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebd927f6e57b779d8c439c2c57e97c25daa49fde7ea2c332b6d93131b4ad10a8. 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/JPPO02003557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fb7a61fccaecbbd7100d0aa98573ea3f644b5b73065f88c23f24a1d0a644984. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/JPPO02003558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c6563e311999ce471aa1a87bc0c53b45437aef9c1235078a066856e8733b893. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/JPS801958368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b449b8b342ab0b7914e607e00109a492bcc02178de58a8e265c48ae723cb4a7. 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/JPS801958371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc4c8be133d2256535a8b922d347a4b138f6e8047110bd3f3d6422894a32e99f. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/JPS801958374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55489f2d29299042fa9ca3372f59ac55e2ccc101e42afd9af1a2d3fc5ac17919. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/JPS801958375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f2a86dbab47bec367c428fce1bdf62d6ae009864699626ddace5849ce6eb19c. 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/JPS801958377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e2c90b94c6c92bd41fb37c025794e3d1958e1563c832ec00db44e094547c39e. 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/JPS801958378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a6a8981196d8fa77c25d1aa0be7dc4672e75e78634fea8fd862511ed0d6a8e9. 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/JPS801958379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b43d8fc7a2fe4c6a20e7d4edae6fc01c19cb9c70af4ce0d7a42d05e477db144. 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/JPS801958380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9788ea31deedc5ce4d2e4695b4bd399052e64a45fe0eb9d1e4c6d099a5bd341a. 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/JPS801958381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16a7d11edba6df9fb10bd85ebc4815c5b497f7576f3cdc5bdbe1890fed8fbd8a. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/JPS801958382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1c6a97a9eb1ff00da0cefe0645d2a51cfda58b5fcc08fc6c4325e869d4c0d86. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/JPS801958383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89a8b14f90baad28bba173b2309daad4c42f62dfe2e777cbdded52d2c18ae234. 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/JPS801958384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb64eda293f3bafcc73a98226aadcf55e81f1d44e17364887d336dd6c05a9b1d. 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/JPS801958390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e7fefc52b05460339f748a7fbd2d9773c5af193c1daa5afe830caef5a04da1c. Chain 2 (Bitcoin): anchored in block 960157 (2026-07-29T22:12:10Z), 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/JPS801958376.
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 0x9a22d6c2e8af9315a5b28b244d26acbaa00b7b16defdddd66400eace9a5a7926. 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/JPS809911986.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51e18932066484b9d376cc471101ce0dce61b64f4dc80a21bd481f02b6243f1b. 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/JPS809911987.