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 0x0491977e5ba5b77425f451d8fdec86f90286640bc5492b1d46a627210868e08f. 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/053d6302-4831-4c20-8472-6900497c7c71.json and https://artists.proofprofile.net/proofs/artist/053d6302-4831-4c20-8472-6900497c7c71.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 0x832e2cecc8ebb45be87bede86feecc4fe98b2a9978a8fb0a60992e2823f25eb4. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZFYZ2196430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb192738c88779a6ec68e1e86025d839fda80e385fad397f62d23299ee30cec6e. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/QZHNB2106291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78aaa78ab74f54ebf42a2a7e5cd763bfc82e0177cd5825d56c0a685e73662dc5. Chain 2 (Bitcoin): anchored in block 957892 (2026-07-13T18:21:16Z), 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/GB2LD2110232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38dbc6bb51ecc78f94457d6bf00179c24212e2428d6d41c63afe1445213d1654. 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/QZTAS2113873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fb51506c988a71e490fa02408a6849645698ad89d167317866762a55807e780. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZHNA2257966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x104390bd536b6ea6dfd33eed1d2ec0ff3887fac666704e22438cfb1de0d69848. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QZHNA2257967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09c11762f55dc9e94db5c882bc771c621a01f7054580fd1dfcc5d59463723b04. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/QZHNA2257968.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc66ddc446b1100b347da0cce9f7b56391f5f5607a3f78963badfe9c9c7201dad. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T21:38:40Z), 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/GBRKQ2251059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01de88a61620d425b9423dc92d9dce22013d2e4d76a4270203990a109c004ce0. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/CA5KR2464719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cee195bc75cbb3a2fc8c7249b069583bda4bf932d910a410d92e661151e9b3c. 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/TCJPA2431728.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbdbac72270500a8c6a93e1375b6af2d69bb9dc58f9d2d7673e00fc86d2c25b2. 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/QZTRX2123667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20712c57cabdaf0c05a966366f8f726f2dce423838d26c009c60bf7da07fc387. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/NLCK42412050.
Hands Up! (Pico Results Excellent Theme)
Friday Night Funkin', Vol. 4 (Original Game Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x740ad513618121e560e5552f392552df2ebd074770723a4d4038dc5f66d0214b. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZWFE2409501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x723c477c91f068160c23795b8308c918dda1f92a50a0a00347442e8b6006a393. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QZWFE2409519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1575f1d26e805418b6fe045bcbf041eb78b6169d70c68983f2a3c755c00b0e40. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/KRA302400221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd751d590f32055a37ea970defcf262cdabf4a8f92fde4216486200802faca02e. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/CA6D22300550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x277a4d431f3914e1a6743a4efc1d830f23317e40b86b6215282cc64e5615f684. 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/CA6D22400182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc7b0cd57e9f9726d031ff908490a58148cff6d4d3c123d9e718bcafe275d8db. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/CA5KR2493601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x277a4d431f3914e1a6743a4efc1d830f23317e40b86b6215282cc64e5615f684. 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/CA6D22400182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83552482b36c65a592c9f3224634ad6507ca17df2a0f0705da3ea853b7554856. 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/AUMEV2417794.