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 0xa46363c06fe9c034154dd1f13679f17f917e2bab8dc6f8c2a6511ab4ff11fce3. Chain 2 (Bitcoin): anchored in block 953803 (2026-06-15T15:41:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e12a13c6-f3a4-4b3a-be46-b102acdebb85.json and https://artists.proofprofile.net/proofs/artist/e12a13c6-f3a4-4b3a-be46-b102acdebb85.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Dreams, Gods and Nightmares - A Hollow Knight Album
Chrono Trigger - Essence of Time (Disc 2)
Octopath Traveler II - A Journey for Hope
Partitio, the Merchant (from "Octopath Traveler II")
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 0x49af679fb1c7160693cd07ba5e57811d88c63439be36e530fe1f7de5f222b13e. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/QZPJ32271171.
Critical Clash II (from "Octopath Traveler II")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05fc39303e884d69b85303844a765060fde2d74d39c36f20236d7dc9276a448f. Chain 2 (Bitcoin): anchored in block 959091 (2026-07-22T05:00:11Z), 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/QZPJ32271180.
Octo-Bit Traveler - An Octopath Traveler II Chiptune Album
Final Fantasy VII - The Ultimate-Rock Collection
Chrono Trigger - Essence of Time (Disc 3)
We Shall Sail Together - A Tribute to Sea of Thieves
Summon The Megalodon (from "Sea of Thieves")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72ad13a052edacf61271428e0bb2403448d911c7d06d9da6aac3f4dc52b49206. 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/QZPJ32340249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82a0dc4da114c89bfd3b1f0af971110d74c40e3063e82ddae7396533769ffc74. 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/QZPJ32360808.
The Yellow Album - A Tribute to Undertale Yellow
Bayou Boogie (from "Donkey Kong Country 2")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cf26bd8103832d2687dd2c9f133560b7e47189e43223e3ae378978f02d9434e. 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/QZPJ32369691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c2357560e20d773c79c1b507f6dec3379364dc56239756cb195ba0e0a6cdd5c. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QZPJ32331968.
Love Psalm (from Silent Hill Book of Memories)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1854803791eca00a9566b9ecb3d495e97d3f66e7b6f70bc4b6411eb967d593c5. 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/QZPJ32367200.