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 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 0xc6d8c202c9c42fb7a40c178aab0ca38f4aaf194fcf23b43508a191db8560e3ae. Chain 2 (Bitcoin): anchored in block 953803 (2026-06-15T15:41:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e1736c4e-3823-46a3-9b68-abb433625b70.json and https://artists.proofprofile.net/proofs/artist/e1736c4e-3823-46a3-9b68-abb433625b70.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 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 0xe867c59d3bf25fe8fa4ad2de434661b6844c8a28b3d266bbba0e0e469cc681bc. 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/JPV751800382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29634e2f19ec4e06229b411f38d393a8de68f22f9d18cdfee1ee62dece445ecb. 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/JPV751800383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb51fda1f782038d32f5350dc53c5e05eb9596aa264f8e666807e41db265c520. 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/JPV751800390.
IN YA MELLOW TONE GOON TRAX 10th Anniversary BEST
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d419b7f803b77dd6647a488afed26e5932c4660c7729d3e1128f0accc497004. 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/JPP321600432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a862672266cad668a2d33fd1d9be90cd4f4de71e4114468e3dcac239f4df8e9. 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/JPP321600433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dfa4e435f1a13695b96f53d34f6f4d6755d85daf16a5180e33977cbea8729d5. 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/JPP321600445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb4ed61787060cfb024fb6aef6f952e975ab0861729ea3be4daa621ef91fa486. 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/JPP321600435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47e817163b43fa5e5aa28789c6be139680760663eb1f934abeaa815c65403d67. Chain 2 (Bitcoin): anchored in block 959103 (2026-07-22T05:56:21Z), 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/JPP321600437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7aa895be85aff32be811f4530a271907b98813851d8c821217f0a039b71db65. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T19:29:35Z), 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/JPP321600449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2835ffa754c9ffe4e454d18e08c9e33ae1cedc66980b5e28b872903ff48ce961. 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/JPP321600450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c292210f87f89c75b6c061c252f3e7b0e26a1bbb6b74b57e4203ee3af49f3e8. 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/JPP321600454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeedffca92ab8f3ec234591e418133549530d082b8914cfa711b58ae63d194dd7. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:32:04Z), 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/JPP321600443.
TVアニメ「W'z《ウィズ》」オリジナル・サウンドトラック「IN YA MELLOW TONE×W'z」
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7c4c87b3c250e1dab5fc4378a517a14e144ea5860b92571f02be86da03e9cc7. 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/JPV751900879.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb94988da2e25713c8119f6ba98786304a6c0458b16f24317cc50189d6a0b3db. 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/JPV751900895.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13b8d4a12965a2c82c5900291ef5ba72eaf3e4971968b60a5d0f0ec48a168efd. 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/JPV751900880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cf04638be7bd7d03a8a4ae3072ef2550819d296200f920c934c7091205d1e59. 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/JPV751900881.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cfbd0cee31ea3789bc41b66aa7610d29898dd688ae9d4c597fe613f0952479e. 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/JPV751900882.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdebe429895cd7b7e6c400981cbe3252c0bbe28806ccda459b5c59bffc05c691b. 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/JPV751900885.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe57c3cda2f00cbb1987f4669f42922cbad45d90f63903b69c51ff95baeb2c54a. 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/JPV751900888.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40a5bd5f4646360da6de4624e02074a9dd624eff879474d13b69b8b0aaa41ab7. 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/JPV751900889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92d7b3714bac8f92b5807c44abdada0484f24d47c5a6ec57ce8ae84dfefe673b. 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/JPV751900910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee389278f3b237cfb08a8706022cd2bc333b0368cb4c5b51fa44274337c3036a. 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/JPV751900911.
Colors of Life by Anan Ryoko & DJ Chika a.k.a. INHERIT
It's Alright - Anan Ryoko & DJ Chika a.k.a. INHERIT remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f496ea92df7825ac5c69cdf97c39a6bcceee31b69042b426d879988e597f0ba. 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/JPD731500911.