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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02b6807ab95a4968c9f03fdad94a7764130d0676fdb453503991b81c2e0cb0d3. 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/5a80a1ce-1e8b-466b-a288-cfca724dc09d.json and https://artists.proofprofile.net/proofs/artist/5a80a1ce-1e8b-466b-a288-cfca724dc09d.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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6918d071629bd121179420e6385f73df76ceb6414ec1f0f037b9b8cc0ec5b53. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-02T22:05:07Z), 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/FRS182040177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8967e30e02294cf408a264d11f962e6a012361d14b609409f3a054f650c0a1ab. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/FRS182040181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b2773f94d3af2b6a03a371efaedc1c5621f5ab8c8401ba27c62f87ba57c19aa. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/FRS182040184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91e4365b89cfbc11ef54fe0ff5a93e6cb4b57c71f784b4cd24fc1796e57675ab. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/FRS182040185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82cd0e04f60708b82165c3e199bb08077421fd8d3bc50f6fa0aa2ec1c62106b9. Chain 2 (Bitcoin): anchored in block 958218 (2026-07-16T00:33:33Z), 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/FRS182040186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e363bacf624723c08e62a2b8303df3caa1e720acad002ce6e6b83a87af7fa0b. 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/FR96X2164036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c47fa870e805801d09aa8528bbd5669d55a1d7e3c245b5de06999262dd0f19c. Chain 2 (Bitcoin): anchored in block 957747 (2026-07-12T19:35:06Z), 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/FR96X2164038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18c7c7370fd601bfd24479bca3177d9e0f4a107c20eb026400dd256ab2347630. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T01:08:10Z), 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/FR96X2164039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3c17378bbaccfc92ed6476cbbc78bd5db563bfe5455e92906a221fd5f3e4a4d. 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/FR96X2164040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1382d103f55ec1c4d3880cdf5063baebfdd5ed364e353975d05714db0bd83e9a. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/FR96X2164041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60f2a1e468d54bde2dd2c43dd211391efe518e60072201df8ffb0875f8e323d7. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/FR96X2164042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb8740d348f0677ce217f4c84b828a3b10351c1513dabd3bd6da6f3893228ed4. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/FR96X2164043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3384f1b3cc182c704a73d72cc68de6c4b65a5ff4ec6d7b716bb8a478d5986443. 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/FR96X2164044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9de06a9bca93da47f560e2871744825693d983ba3eb9154dd2d531eeb3f1f343. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/FR96X2164045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71df2c8f28f0d9ed719ed57ee904f5567a4f91e0c9a2a2100228e65c4e4391fb. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T11:08:30Z), 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/FRX872205179.
Dark Echoes (Title Theme from the Game "Metroid Prime 2: Echoes)
Dark Echoes - Title Theme from the Game "Metroid Prime 2: Echoes
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x113263faad0e60e86b82a1c16bd7188223b0784b02de97addd629eed63ddc44e. Chain 2 (Bitcoin): anchored in block 958251 (2026-07-16T06:29:25Z), 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/DGA0P2384642.
Space Pirate II (Theme from The Game "Metroid Prime 2: Echoes)