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 0xba27c4c7c5ee49469332d6ed21ee3c4b3fe4306546d0f8acb469f138828564de. 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/bf658adb-e53c-406c-925c-b96eb7c35f03.json and https://artists.proofprofile.net/proofs/artist/bf658adb-e53c-406c-925c-b96eb7c35f03.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 0x6eccf4a7c07b13434a62354651cefd2f47de4de2596670f5a27ea7561f0eeef2. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/GBSMU9758395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x292312e455042ce99900e931bdfcef4115e7b5d743b995563d32fb216a0fcaff. Chain 2 (Bitcoin): anchored in block 958531 (2026-07-18T09:39:18Z), 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/GX4R52154343.
Friday Night Funkin': Backstreet Funkin' (Original Game Soundtrack)
Friday Night Funkin' Vs. Original Starwalker (Original Game Soundtrack)
Deltafunk: Boss Rush (Original Game Soundtrack) [Rouxl Kaard & Main Menu]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa345ee685a88f76723dca65ac1f49b917352747ab40b8b9366f5593784296c33. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/GX3HH2202583.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7e288f78b95034636c72547262241e8f8a066305854a8f6b685afa0071afd4d. 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/GX3HH2275429.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb2e4b0345f0c148182ce40b5635eae61f29a84a4bc34095286f8bc10f98aa16. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/GX3HH2275433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d9cf2a20e9d0ba2085e6afb05531e3577febb97bfd68e9ed5c7ece2f44e1c1b. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/GX3HH2275434.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb0673ed3f64f3ba227788ced978941fc06e2c5a2e96d126638382ec78482af4. Chain 2 (Bitcoin): anchored in block 958680 (2026-07-19T06:04:14Z), 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/GX3HH2275437.
Friday Night Funkin Vs YV (Original Game Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x205ae2f9f92f938e9869b32e061c45ad840f94f4aa0234585accb0150b633a47. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/GX5MY2263737.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaa2738f30ece8d14a388bbe9196e3f3fd36a25c471b39215ed4a88f787ee927. 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/GX8KD2303393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ae9a86f4f64c871c5a8e9e61f103ac2065310be095f4994a9eade099245a0dd. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T15:31:18Z), 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/GX8KD2344868.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1996961de4eb114d311a36a783a6cb1f49ae3216accd552113892fc7c1c66f81. Chain 2 (Bitcoin): anchored in block 958404 (2026-07-17T11:34:58Z), 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/GX8LE2392134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1f35176fcee05ee0c618c421a904b59b9c106856f364c858c6181ba691e7696. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T11:41:42Z), 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/GX8LE2553837.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ee2ac10a54d417340d699c11096461954d95f1b7715dd2c33b1ba536ecea819. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/GX8LE2510139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ff5b4cca1f9f1a2df887bffabe6100d37b352703f8fd896ae228290122fda9a. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T06:12:52Z), 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/GX8LE2513240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2b1319daeb155672a06ba55de5ac28de43bfe296de6d0d14ae6e3019315e5c1. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T20:03:27Z), 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/GXESV2507754.