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 0x9cedf943e3c837e310454c4a361f4091947b4f5ac3ef81c44ecd933412dbf19f. 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/b5c923a5-4602-457f-ac83-741e2a01143d.json and https://artists.proofprofile.net/proofs/artist/b5c923a5-4602-457f-ac83-741e2a01143d.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 0x04c63ba188084fce58d10f26c1dce511bb3bed76f70e52eb8adfa72bd4e89297. 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/JPU902400999.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30d3c444ee05dc8936ee9945ca7187a45040ef1d1015eb0420a44359d08c6395. 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/JPPO02404249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3364fbf045fb6decdd9f7ded39408d9580de86a62c0b796317f183766cd40bed. 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/JPPO02404102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc124bf8df649dc93e8817f5916632afa9b6e0c83da8e69f3ace3f3368d7cd6ec. 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/JPPO02401117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf733685f797ab1960c1aaadbca8a2e30ad89fdbd834f9f19d5224e6a946c705. 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/JPPO02304547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb22866753b18e5ca5b4e417360af1e65be065f5b8e92857f1288541878873aac. 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/JPPO02302663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfafdfad0dd94414831fe3add457b5966b348cc4abe3873f9ffd1d62519bccaf1. 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/JPPO02302191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8ad5805ce7e7b13cff4a511ea449f81bfdbf36f8420eb3b0c2c8a8b7a3aafdb. 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/JPPO02301789.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6fe70ab585bcc3d94d6d7f49049aeccff766427c2adc3d13986e883bacec37b. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/JPPO02404750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cc476f7eb2001cfeb4444d24443936be6615d67fd1f5c0b4f0e866dc5f8c217. 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/JPPO02404667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaf57d575ae7295a0e2b2101cf637ae3fb59cea1065e6c0bad75d197bd61cd56. 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/JPPO02202940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x359fb932025b702dc605b8f11049d83c7249cbd01ea1510f72c13af9c7e9eb0b. 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/JPPO02403113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x162fd3447ee4f479eed29642a6b4711ba84a025f1f7124ae38186634cb4fb760. 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/JPPO02404751.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30d3c444ee05dc8936ee9945ca7187a45040ef1d1015eb0420a44359d08c6395. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/JPPO02404249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1622ac0ea2bdcc403a7bae834b561c9de971dd56cf00a4535144d76b2af0cbb. Chain 2 (Bitcoin): anchored in block 960225 (2026-07-30T08:04:30Z), 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/JPPO02404752.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0584c92ef71f62597b9789a2c0f4723dee3440487367da0c6f4c52c0af0f900a. 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/JPPO02404669.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1943a1696268b3ca9de486486fe36def7a369173129a9b07f9aff9d49b3cc8d1. 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/JPPO02201576.
HARAJUKU BUZZ TRACKS - Running Booster -
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30d3c444ee05dc8936ee9945ca7187a45040ef1d1015eb0420a44359d08c6395. 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/JPPO02404249.