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 0xb68fe0160f9ff01974fb0a283de6a6e0cd79a217f2bc691b7cc5929b62b7bfe3. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9df1e227-16f8-466e-8db0-c202ef58d9b7.json and https://artists.proofprofile.net/proofs/artist/9df1e227-16f8-466e-8db0-c202ef58d9b7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Voice Love On Air (Original Game Soundtrack)
Poison (From Hazbin Hotel) [Slowed & Reverb]
Poison (From Hazbin Hotel) - Slowed & Reverb
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 0x5bfafeefdf47e9ed3eb8e05a5a7cf858838f8c1ad66f971079cbe89f8a913051. 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/QZDA52492760.
Exit Signs (From the Void) [Slowed & Reverb]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0eff3a70af86e34d999b4e340e6cd30545bbcc3e9b438b03e00a675f8ac32c4d. 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/QZFYZ2450697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5f5b9974661a217d5fc8d6b1b88be741f077fa92790fd9cb8700700a794c216. 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/QZWFQ2361420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3107eed133f0d0a329b4adc23003ebe0a8a9fea610c9af89aa1744f2dda04a5. 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/QZTBB2313644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2268e78b0c7d4a561e3565b89f2b86ba8df71780f7992613f16dde81766321a. 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/QZTAX2344193.
A Taste of the Flame (Inspired by "Hazbin Hotel")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc085722b5a508cc75f95862db2e4e076f719fb79206a7cee41cec683f192c8b. 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/QZK6G2345052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b28815ab6ae5bbcdd0a7093a9293989cd7e7ded4bdd2c622f57f1a51582b53f. 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/QZK6Q2370520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0354680bf37b81ea71f21e2b69d7de3113e103f60a69c0d9e82d4d24a383f68. 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/QZHNA2360954.
Hadaka no Yuusha (From Ranking of Kings)
Hello, world! (From Blood Blockade Battlefront)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacaa2137ffb8718f7d7d90e930e5dda4ac1a8b7ed302369764e63a0d4d9796b1. 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/QZFYY2390730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd38c2a8bd2a280ea8f03c28cf4a6abdaca1adfbe00790b5da1cdc395b5026c4e. 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/QZTB92219842.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x844c3e317c05eadc623914d16a34e350db1b8dfe50c572a71023e1a5ac2d04a6. 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/QZTB82209794.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x529be817ff7bdcdc5386f00212b9a4d2147559f693d17a9557b08a2dcbec6112. 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/QZTB22223675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95f268a57016a36bb2093547d0c9f6fd27a3fca9a670fd65de4bf96d225e415d. 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/QZRP42281378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x222dc048c91a79a496629a17a31096db3cda57841e0356fcdb06f6dfc8bd9d4a. 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/QZNWW2218975.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d00216c31b784e07c6b3f505f193e9d3fe4abdaa8707d413fb8302f9ae80d97. 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/QZDA82291015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc77bd7e5cb3c27e2ec83c38d705d281d11d653de646bbb11a4cd877a0b7c72e8. 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/QZFZ72291823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb37c10780fd3ac3dc68a4cecef6f26c9f12c1cefa998640fa04ca7e3b14b79a9. 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/QZFZ42255660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3bfd1ad2838d6afd90ec01612c759341a2b538234a29b71bf7a1df0295c47eb. 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/QZNWW2055735.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9edf5f421d49d6f24928730475f9acbb829a402842e709c8a89fd38a791a35e. 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/QZMEM2003652.
ANIMA (From "Sword Art Online Alicization")
Contradiction (From "The God Of High School")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e4c02fdeadcbe85c721b78e2e35b67349b398d236077dfe1d936fe896d5014e. 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/QZGWW2135637.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99d649fd7e6f1838a1939bbaa8650f71e4c9e5b3a662d6bf22ab5633a2cf5650. 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/QMPKX1617628.