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 0x21be3011a318e36096f18ae01138732d92eedee85f0049e61e69ec4679499788. 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/3b624102-3587-46fa-bfdf-c5ee2316ae97.json and https://artists.proofprofile.net/proofs/artist/3b624102-3587-46fa-bfdf-c5ee2316ae97.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 0xe85d990efc29754f87ab7746aa8243be5da241f4a5bb46972f0c29aa25d67d98. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/NLZ542000118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ea01a7046315430afd748d89eba8439a8e614cfc582fcaaaeacf94ecedbc1b2. 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/QZHN62001045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8324432992f83c239afc18b224b64ea74bc2200611f05003272e0e77f858a901. Chain 2 (Bitcoin): anchored in block 958143 (2026-07-15T10:15:04Z), 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/QZHN62001046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8a5bb9fa234c488acc4ef89c69dd6006cce47c45ace1458120f12b050cd12f8. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T09:54:27Z), 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/GBLV62037470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2d795e8ff5f677c6a3bb41bbcd023375649b8aac6b32fec9bde94a2ee138fd6. Chain 2 (Bitcoin): anchored in block 958142 (2026-07-15T10:09:30Z), 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/GBEWA2301050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ab1466369b04f79c747e806dcbcf7a250c247f3af6827fdb163ed692cace3bd. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/GBEWA2301550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf79c2e235b2b1c26c51c4835e5c21b539795b8a7bcffa5a2cc22e694559da37. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/GBEWA2302800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fde9867279a5a4543c47602e4fe97fc92f6c0b830f480257f18504fb38fcec2. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/GBEWA2302801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bb3e7a80a35f1c30f6fa05a24a40bf62b4ec06981a979ab591606a377a7a5a5. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/GBKQU2393046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8eb55c7970534ba5e9a410005fc3ebfaea1134e40a1ee7eb2db4646e9fa3561. 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/GB6LY1601309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79aee92ae2e2492c4579ca8523c123881fa734f0f700a482b8e8906f823ae025. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/GBKQU2417069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72244687b1cb6e76bf102e2324eff1c1f5026ee3c35da4db64b1460f63510fe7. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T22:37:53Z), 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/GBEWA2401280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c78c19148b60d58fe4b66d4a0b0e6fd137cb0a647c44065826ee7351f3d68c5. 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/NLHR22400347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62dddc3fd9a60966f25216480e81284b25c416324f978874a491eee90d2e8364. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/NLHR22401010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeeb1266c177e87761536953181862b7ec57d699324e3a14b79a108f8543d00eb. 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/NLHR22401011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79a0caa75d58bccb0974e73fa39ea1dd228f91b9c9a45263507b49d240a68208. 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/NLF711905006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc3381dfbbd36f7a6ecef08d95a0ebc6d074c2e9b5082d5cfb23db8f02525406. 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/GBEWA1908700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf32c65aa8d3732e67a51cf5bcf61572bdf21d4f4d82b6ec98f589497fce208e7. 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/FR59R1894844.
From California With Love (Tritonia 474)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f517acf34a5f31a347ac8232ee715842a1739fdd7607f21bb2cc3ee22219cb6. Chain 2 (Bitcoin): anchored in block 957032 (2026-07-07T11:43:09Z), 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/GBKQU2443569.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7a1aef78fe0596f8149492f0a106737c19748bb35204b96c81661d5bd9fa97a. Chain 2 (Bitcoin): anchored in block 957020 (2026-07-07T09:18:01Z), 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/GBKQU2095329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x902f98f840822ec5588132b5d06a9ac9aaed382deccb9908f0ea9f890d25e496. 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/NLF711913927.
Songspire Records - The Extended Mixes Vol. 5
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x148bc1b380d12a4df841e057fd13012188450504018fb20ac01096f0eeac1f53. 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/NLD681901463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ea7e71b82bb3a6df9f6e48ab5c8474da8c30d360944f40654bc52e758f427e7. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/GBEWA1910561.
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
Beyond The Comfort Zone - Avoure Extended Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25696ce4ffc2b01bd872a162c5aab657224a2b87da80ff295ae4c1c77ee7bcfb. Chain 2 (Bitcoin): anchored in block 960376 (2026-07-31T09:09:19Z), 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/GBEWA1910569.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cd0117131c2825dc8ebd91f83783b049bcb97eeb5eada94a90e12c322beca40. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/NLD681901465.