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 0xb4985b7585557b24a840a9dd6badb559418562ab32e37d5abcb484d2af3cf3ae. 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/d5735274-8896-45dc-9147-ea225c130e96.json and https://artists.proofprofile.net/proofs/artist/d5735274-8896-45dc-9147-ea225c130e96.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 0x601d6bd0877a374c38ee67ccb1dffac5120f1f88f81ad23a65a6fcb7185717fd. 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/QZNJX2325936.
Up All Night - 2023 Wax Alchemy Remastered
Elastic Afterwords - 2023 Wax Alchemy Remastered
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90a9ebdcb26864e1d8fab2235d59e52ddc1726c088b9007c9e6466fda425e6a1. 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/JPN752420013.
Cruisin' (feat. SIRUP) [Rework] [yonkey Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafa82f6766e4d96f1b77842c549ee0364f89d65a68eed1a36c23e0b75a9b1a43. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-21T16:51:50Z), 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/JPR962100190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9e19cc79434272ff4f9ee485da02e1ef31e8b7715180de453911c2165c70fd7. 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/GBUM72108834.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9e19cc79434272ff4f9ee485da02e1ef31e8b7715180de453911c2165c70fd7. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GBUM72108834.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4623b57830415676f52d343687cbb64e2d271538ebf84a7bf261879eb9d98fd. 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/FR96X2218951.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2619575eb9a7ee5d355929b7b5031bf49ccee21a5ff85377ee2a1e1962d0f4fd. 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/JPY492400010.
All Through the Night (feat. JP THE WAVY & SIRUP)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2371dc46eeecf2d525c8a1c19c19b797571c19d2ac89a5260421a1acfe558b1e. 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/JPX602300009.
now - Shin Sakiura Remix DJ Mixed Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfce09ce6a50fe1116522d1be7105d85100b90d831bcb4651b123c29a9a5bfa18. 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/TCJPK2097230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc043605ca6fda26a3e69457e1e6c6183fa542dc1ea06c51f8e85e4ae82a485dd. 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/TCJPI1969279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfce09ce6a50fe1116522d1be7105d85100b90d831bcb4651b123c29a9a5bfa18. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-21T21:11:45Z), 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/TCJPK2097230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc043605ca6fda26a3e69457e1e6c6183fa542dc1ea06c51f8e85e4ae82a485dd. 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/TCJPI1969279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09c7005a42743919d6084d096dce3e2fb3ddf1582d2705e8b97a7c3b3cbd9fa0. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/JPN751820127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5bc1fb02ef56a5b84fa56b4dbcf93200ac1eb536a1bd9e3bcdb778d96371c7e. 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/JPM591001194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5bc1fb02ef56a5b84fa56b4dbcf93200ac1eb536a1bd9e3bcdb778d96371c7e. 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/JPM591001194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x408cd3c92a7c9ec1fcf45a6138c437489f3f31bcd3da049df4f51da4df8fb1c1. 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/JPY492100045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd457c1a579dc9c0ea81e3fa151ffd4f1f1a7877f736ae6e6f105b395da7c0211. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T17:00:49Z), 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/JPM591001412.
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 0x17992258635b1fcc5f7fd0bcd87027be2503be11b0a547be8117ea8ee5ae7a32. 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/JPPO02102665.