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 0xa6ed0cd4921f301abfda3d06b42afdf1d5116c69fe9a708ab5241962c59aeb77. Chain 2 (Bitcoin): anchored in block 953819 (2026-06-15T18:31:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ffa8f82b-e77d-4c03-a1cc-67e4efec9ac4.json and https://artists.proofprofile.net/proofs/artist/ffa8f82b-e77d-4c03-a1cc-67e4efec9ac4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
ウォーター・ヒーリング～ビューティー・トリートメント・ミュージック
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 0x80fc6948cbfa4f08ed4d9d44cdd5dafaa1a86dda819289ecae61c2eaae0a95fa. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/JPQ701300168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc825b6a042f4cbff24a9be7b051365ece1241751a70c6a859f6349b41ab95b1e. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), 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/JPQ701300169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ca5c7599aeee1581134ea0a9ee0a6a693f8b3100e867b4436152b7e62eb77d2. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/JPQ701300170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ebca4908508fe5ab60d38071032f75e770071ee9fa9fcadedd5c18dfc26b796. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), 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/JPQ701300171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c39095483b40ee8bc08d7cf3e50c5b98b70a4f158766af228f9e3ff91dbd383. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/JPQ701300172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18f4735a5c994c57040234d9c4b13f09d66dd54c2f9fc8ec745d3824086460f3. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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/JPQ701300173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4730a5d2a0d9b5b4b4c523490c669231cce450d3dce20c21b2c8bc8d4239250b. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/JPQ701300174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef02343ccefb114dab5c13849ad031d9c5fe7331b87f332dc8c7ae238aa5bf37. Chain 2 (Bitcoin): anchored in block 958726 (2026-07-19T11:47:20Z), 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/JPQ701300175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca86502064c7c16dfc85805b9708ac358eac8d618f9376b0c0456ed50f8f4b5a. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/JPQ701400085.
フォレスト・ヒーリング～ストレス・リセット
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x034bab341bd1b87b939ba665df2219191d37d145f48ed49072ea3183bf5ad29c. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/JPQ701600056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e440baa8e00d89114689721f2219d293ba5fab67aac12271f0ebafe735a4a2a. 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/JPQ701600057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea2ceb6ca313e3e5337264498dbb0eb2af347bb3f9da06ccb0ceb463e25cfc10. 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/JPQ701600058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc11abe9ee744e872bee5dedd6d4f67010cc3e71fae9cfc2d9ecb4f97911e37dd. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/JPQ701600059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1be1b9f52b8141e2667aac56f29118d2688e50f2a1f2d3be63518f7cb61b48ef. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T13:14:05Z), 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/JPQ701600061.