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 0x2e91192a965e07cd5c6204005626bb0cb4cd2d5a180c34b4790f84727b0f0a76. Chain 2 (Bitcoin): anchored in block 953633 (2026-06-14T12:47:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/340aba4e-6fdf-4702-8f75-cd5065ab24bf.json and https://artists.proofprofile.net/proofs/artist/340aba4e-6fdf-4702-8f75-cd5065ab24bf.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Brutal Orchestra: Egg of Incubus (Official Video Game Expansion Soundtrack)
Brutal Orchestra (Original Video Game Soundtrack)
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 0xa2191f057b694f845c797fd4dc95ceea3f6538f2211a34d5d23ba8b8cce9bc7e. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZHNA2210359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe430c03862fe389d4137a8156e3d6a31faff20aced0c696b0bbeebab3ce828ce. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZHNA2210360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f87b3820efc08d2e28e57fb8de2bbc0a9e5810af3083695683d2ab84a6c2344. 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/QZHNA2210361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dba38aa5098ff27c73ecc2bb5446c273a33f765a99e789a9afbbbaa2591960e. 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/QZHNA2210362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb691e54344e35228f581a4b8c33d626e430bd68b144379036ccf55b7334330ab. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/QZHNA2210363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18abd95ee0796714a80bfca8ca98b8e419f58415f36c032e34e4c7fb88bff1f7. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T17:53:56Z), 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/QZHNA2210365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9c4719de6ae61a98ba5eec205b9b87a10a96b5a6b5f2e4f5272e668c58d2a54. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/QZHNA2210367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bb7101f64241fa37df73aaf81de3729357d3f0f92af142ce75f85e6628bc35c. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T15:48:23Z), 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/QZHNA2210370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe5ae1384615dd4f4a68d263e39f6a59908c4b3ed06a2bc74680acf27fe327ed. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/QZHNA2210372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa26d10f43db64537216971c1cd597aa66e71ec1dcbc101595af3cc6740a83b5d. 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/QZHNA2210374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c63f32b26979683a8f32bee1eb919574c8294250ec8423abf7e1f31e1a0eb40. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), 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/QZHNA2210375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ff2c5a8d76e3f8ad0d9fe7d24cb167d6efaaf5ba352387aea75eb0256d03d4b. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T19:26:13Z), 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/QZHNA2210378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd856fe978bab17bab78f37d6c13a736999d58e8f2cad5a1541ce550db142c80c. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZHNA2210384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2db738e677d170583382b436adddc0d6ead9a0f3451e1932b3b4a8631f690f50. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZHNA2210386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b59145888d4018a2d2abd9776ff2006c31c945803828d79c797a22fd64c7c31. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/QZHNA2210389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x354e0334f57b01b555fc9e04fe391bb7d73839be21d5931689de2305303480b2. Chain 2 (Bitcoin): anchored in block 958705 (2026-07-19T08:43:25Z), 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/QZHNA2210390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbab9da4d809ca31fd5632e85a34b24ad2f87ef40075fbc7a796e8cef5ea37894. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/QZHNA2210391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4977116887c1986fe95503a74fe9ae896304c6feed07edec32a2c71d2f2d6b6. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T09:47:57Z), 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/QZHNA2210393.
Swallow the Sea (Official Video Game Soundtrack)
Brutal Orchestra: Exquisite Corpse (Official Video Game Soundtrack + Extras)