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 0x1606e56d8f50b6e0ab8f8e63c30b8bd465696e3c83b73077ed9cade1a32c99df. 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/f8781063-cca0-4738-beb4-0c42ce8fb716.json and https://artists.proofprofile.net/proofs/artist/f8781063-cca0-4738-beb4-0c42ce8fb716.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 0xf06bf613c0f65d56955dde6a3c4d7db92621457f7616530a3673400fca43f5e2. Chain 2 (Bitcoin): anchored in block 957919 (2026-07-13T23:58:45Z), 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/TWA559913106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbde8e24507380f16a6da1c52db6bf5f91e6338e8cf3cfb2da4786444ceb82d92. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/TWA559913107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9d1be44be31cd9e88256d262941bcca50f2f66d60325b642b3d963cba1ce086. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T01:22:17Z), 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/HKF669800007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e7e3bdababd02d2855f769e717d68b5f1ba4c241ca68350dc5de91e6ee2b35e. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/HKF669900018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf8c1240cfc2a415a0f5b3f62a2eb1334816235503d9f5d93939038d46579f22. Chain 2 (Bitcoin): anchored in block 956383 (2026-07-02T18:11:59Z), 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/HKF669800008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff3c964ebcc106bb0c639828da909e3765e53e5c298a5721b2a3effff39a2fa1. 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/HKF669800003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ce9e265be75a18bff2d4937029b67abcc1b782b0d4f35a258fbcdfe70d9a821. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/HKF669800004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36ab3fe90fc7da84bffd2669d96284de30666484a5f48a6a8f0111a769f58fe8. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/TWA550013103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc449ed6a5630982c9e60efa1dde58a4bbcd04507734d7c7113ea147aa368d7b. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/TWA550013104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdbf519be5c2d5f81ebcebe78f07104ff34260a48afbfe00039bb64b55de1065. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/TWA550013105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ed6251f54fb6b4210bfd55b0634cbec3bacca2fa6c9c64901388e065035721f. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/TWA550013107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48c4fc7bd00f6bfdbff09cbbfa255c70dc6756eaf6533b922218d64bd57d2e7b. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/TWA550013109.
蒸发太平洋 (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a41cc10d56267cc94e89cbba0f7e2a2168fa1d8d7b89acae80914d53b3002f4. 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/HKF669900017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a41cc10d56267cc94e89cbba0f7e2a2168fa1d8d7b89acae80914d53b3002f4. 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/HKF669900017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a41cc10d56267cc94e89cbba0f7e2a2168fa1d8d7b89acae80914d53b3002f4. 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/HKF669900017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34bff09dceac9f4a69c9a8cd6e532d7de9031d1b696f7100aea8619ec3c5f60c. 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/TWA559902102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e7e3bdababd02d2855f769e717d68b5f1ba4c241ca68350dc5de91e6ee2b35e. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/HKF669900018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb756826613a379530372dc8e7e126f5ab8c57f4ba2a0266447af146c1cbc003b. 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/TWE230304407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1856b74e55c6f0d938bf26bc953841ac529d32276252358b876d7b39009b9a9f. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/TWU711401386.