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 0x2e4f06512eb14ddf24468a1ab99b7d17f04c3054825baf9d54a96a293e211ddf. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d2845a0f-e78f-4cd5-983f-0967f0b92da4.json and https://artists.proofprofile.net/proofs/artist/d2845a0f-e78f-4cd5-983f-0967f0b92da4.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 0xfc0f7ea6106934a56fb2fc7678611353f1b1bd0ee515ff81d916bbafa86c3b3f. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/TCJPL2058328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3e33a9556547da769a002349c80b5eb98fb6b3cd6725a1d18913939c5ee60d7. Chain 2 (Bitcoin): anchored in block 958087 (2026-07-15T02:56:49Z), 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/TCJPL2058318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3da1e3d304ffee3f602d45a38b5ad5c11d5c52da742e7ccbe983a3c3db86912. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/TCJPL2058319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d6a7f2b61fb43b1bd402225b29c91642f4c0ee79a5af74ab764ff29cd554bcc. Chain 2 (Bitcoin): anchored in block 958397 (2026-07-17T10:29:45Z), 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/TCJPM2058852.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35b354b9205c558eea673d8c7157de272cdd417d4e040c12a9ef91f5646c6b65. 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/TCJPR2271237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4c308a9943dd4e43d815217b575b1b60684d5891b1ca6bbbd677e69651a3fb9. Chain 2 (Bitcoin): anchored in block 957780 (2026-07-13T00:36:44Z), 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/TCJPY2328555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94ea94da015e44da825d1c1a9deb8eff0cdd91154f0c3fc2e4674e239f87241f. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/TCJPZ2435922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5674a413c50242ad211680f95e06bf34d102bd959aae8deb434128e2b070e394. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/TCJPW2370130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3efd590784f27273fc4701416c3c783c2a3bf5710d3ded06c0d2137df82c723e. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T02:28:59Z), 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/TCJPZ2436086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dff73ed508de93ae836a86e664fce9afb31c13a3fa0faeaf3aa3dd45d5a8e29. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/TCJPV2330267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa9879b4091c0e42eb113504efcc4d5e3ac79f70fd65eb82296f7ec0058926be. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/TCJPX2361984.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18f9187a7eb12b2f218f2755ab32f0061774bd19f0ec8fbe5bc51a148213cce9. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/TCJPC2439620.
音楽的同位体 裏命 1st COMPILATION ALBUM パラノーマル (vol.3 交響のパラノーマル)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5109c2c373f385e92647cccb68474597aff223a4e7d7ef840bf514f7b048335b. 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/JPY392200813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7d1cfdfa7f4077aa117baa7c0743ab602fa34df8b354185d33186ca1d992764. 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/JPY392301624.