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 0xc899f356a47ce622cda8aaa6bfed70321503a8ee36ed86f81eb018c9ad4349a6. 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/80baddbb-52ab-44d4-976d-d4a58db138b8.json and https://artists.proofprofile.net/proofs/artist/80baddbb-52ab-44d4-976d-d4a58db138b8.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 0x4018e8bf9471cf12cac0d88990eafab857af69aa98234ca5117daa3dff538614. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QZWFJ2398293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6b8e5ab5fb25c58830ba3d06084812ac9dd13bd8fa067bc6e32c870fc4e8ace. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QZWFN2382665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19b8db31f975a741543880642ca9020196f223c1751486411b3ed8819bbb2899. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T06:56:48Z), 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/QZK6L2376994.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ec752ae97e9e57fd30a3d1bc9bb6197bb11bc99b32d82c63a20a2ceb2a99eca. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZFYX2443314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76c18fdfd7b2141f15af3d64ab108289bd894c3425e5ec2a730b255e2ac8dfe2. 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/QZFYX2444731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc008940b56751a3c71b99ca36eb61a063e52b649573e60f00208b11b345200f. 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/QZFZ32473870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa837cc73ec6f2f1342a7d6112a49839319836cad0d40c61b1d655103377c4802. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/QZDA42422487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa17385251a3be588728e0806e678dbf63802d61778cd4fc2dfdc94b70e1b3fcd. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/QZES72415996.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95a58f526ebefc8a15231cd3eac212c6f69589d74e92ff73d340686fbf5c0a1e. Chain 2 (Bitcoin): anchored in block 958474 (2026-07-18T00:59:09Z), 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/QZES72415997.
pokémon lullaby ~ heartgold & soulsilver pokégear lofi
A Journey Through the Johto Region ~ Pokémon HeartGold & SoulSilver Lo-Fi
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ec7d331084f1f4f72aeb1182f758aee224a980da8d11323b6200c11bf8fd81e. 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/QZFYX2442573.
pokémon league (night) ~ diamond & pearl lofi
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6411e170987dc497ce922fa7d42b616ecc3dfa9e45b0c709bfae3f910635371. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/QZES62460166.
anville town ~ pokémon black & white lofi
A Journey Through the Unova Region ~ Pokémon Black & White Lo-Fi
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7e1cf210e3cd693672aefea5f5499c42d8411a5bd8966cdeeeaa8e3c1ceb0fa. 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/QZFYY2533740.