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 0x9061f19dee4b459cd6028fa1b4a7f629b22a2386d4f4c4c26ae079b73bd63a3b. Chain 2 (Bitcoin): anchored in block 953625 (2026-06-14T11:37:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/215efebd-5ab5-4a4f-9d9c-52f8a5680018.json and https://artists.proofprofile.net/proofs/artist/215efebd-5ab5-4a4f-9d9c-52f8a5680018.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 0xa64407e8cabd416ceef9b2fe041cccdc95f3153c5b0c9203d092ac46f8d929d1. 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/CA6D02200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8be710f926b90ad00233680b0d06433365f3ced5dcb534c135b69a05ed8f8d32. 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/QZNJX2347137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0519a1788c3efca64728b33ef4851a987653ef673701290a42ec841102cf973b. 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/QZNJX2411378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89181882dddde9faffb006a5e738a65e7f76f2f3c0eecd29e36223b245f253ca. 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/QZNJX2411380.
Seduced By A Disease - Apoptygma Berzerk Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba703691b1c0871c09ba56d44eb3a74ab2cd390238c0ec375be9e8ef02d99c2a. 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/DEKV21801551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x894c959264980e38af5e671e3489c0b19f3b173302c6c36c212e86545892af07. Chain 2 (Bitcoin): anchored in block 960145 (2026-07-29T21:13:37Z), 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/DEKV21801552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5df07939c1539e12668746918f12fb9452daa86d6273286ce5021ef34735c783. 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/DEKV21801553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbefc7bb1a687402f0cb6e21d1212d514e2f452e526807f7ab98eff1d07e4e6f. Chain 2 (Bitcoin): anchored in block 960330 (2026-07-31T00:58:21Z), 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/DEKV21801554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x531e123483c880db9e40ee2895aea1ba2b1116a146071862d74645ec0c872a58. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/DEKV21801555.
Hearts Against Minds - Aesthetic Perfection Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x345c1b409caaa9a915f2274e00fe66bb10f627ef1357bf50ba26ed4cef80cf65. 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/DEKV21801556.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ecaafbe77c749ebddda96dc9e35c2a7728c9f7f88cdf857a0e2037d847241f8. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/DEKV21801557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x838c0f7afe76e954827b61754e9de398a502611c250332adf142d15d89ad9c68. Chain 2 (Bitcoin): anchored in block 960193 (2026-07-30T02:05:19Z), 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/DEKV21801558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76c53f2a6026a575bb3cec92cf49f482ba686f05f05c12229959fb127891f061. 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/DEKV21801559.
Stronger Than Before - Leaether Strip Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6ddc7ae6dbfb2601968f5508486f77dc84e5ec3856d134c0d3ed4109d18c598. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/DEKV21801560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0aaf06a22edf1ba95c2cff8e122594c8da3b1ad5f06a35314dd8db6306337540. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/DEKV21801563.
No Paradise - Dance Mix By Decoded Feedback
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b2161c5b09d2e73d8ca575dd6ec09e0a263f6f0c3ccede08b46890fc3750826. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/DEKV21801564.
seduced by a disease - apoptygma berzerk remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x624925d3907bb048357a1a90924a9e78b0bac08ff689250184012aed71fc7884. Chain 2 (Bitcoin): anchored in block 960298 (2026-07-30T19:26:00Z), 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/CA6D01700001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc842a20f67e6a9a6689199b8d0d721c767ab0727edf562a74035c50728c3413. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/CA6D01700002.
hearts against minds - aesthetic perfection remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x776ba1af0da79f6ca895f08fd1ca131ec95de04b0e98fc408512c878c80f754a. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/CA6D01700004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a0c8b49ede6dc17feab4b0776d69523e9c4814f769420a2e618aa1f167982bb. 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/QZ5AB2459353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeee864f32490efd9e12a86a151600e5b33f9e09075d782fdead72fcc6fe6bade. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/QZ5AB2459354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80b1350b2d061b827b31dbc28b2a87c2895d782c0e48973308150c4721328508. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/QZ5AB2459355.
Sell the Sins - ESA (Electronic Substance Abuse) Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d8fa493f5077e10f09d3fb993d416b99f5ac546dd5aafd8035bffe2796dd397. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/QZ5AB2459356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafa61ccc90bc292632828836c7c12ed3ac582a905b9f0c1772830a46c5f7d8b1. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QZ5AB2459357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfad0be8120cf1e535c0ccdb3b23271ae67fbb94d805956cf620a81c53a0bafbd. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QZ5AB2459358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa60bf4070c970aef3ce301d17db8df70d31ac1b917cd16360a843e83d252ba2e. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/QZ5AB2459359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d780a99768bc0ac90617c1bc5aa6167f14a8c24ee4537281300026ce8bd1476. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/CA6D01800002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8642fa71401d79ea1f343cef96eabc623f7ad4c730fe296017721bf24af7693. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/CA6D01800003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5680d30e4e8eb56abe832a80ee47c5e694064059871b97573621ddc3153357a8. 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/CA6D01800004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x361baf0810f7769bcb4ca417c36cdfd7c0803a55f1e93219b3f7ddf369929a86. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/CA6D01800005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef419c8d5e6e05bb534b5a4321cf3ec6b192cf5d3efc6b0b9babee164d592bfc. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/CA6D01800006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb03b051768899a79050ee05d918db676cf1502196aa7667c9c921ae272b1644a. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/CA6D01800007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88e3d7646268aff886185a1a7cb0f92f662c2d6fc68e8a8201af54ca9ff1332d. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/CA6D01800008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d00a20d4aa710b3ce9805593ce6451368d243ccd49002fd5a8a137d72c377ad. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/CA6D01200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70cd450218f0f999782d21d02c9b27003c66f7179008dde407993d2a8514fb9d. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/CA6D01100002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb481a6312bb89ea0cd4b4fc33df9abd201ac187f5198472a0c39ff5c521f59a9. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/CA6D01100006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77707be91ae0a02a1b867c473ac8a37b14173f33d24c30fbe0b7e6e97e809127. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/CA6D02400008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb3ccad335305ba412d001b40de68100abc3bff621b81a57a984209314becc12. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/CA6D02100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb10580cae7a4afae40b8b6dbde3b325736df82f3bd691d9fd8407308f1597949. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/DEKV21800487.
Electronic Saviors 2: Recurrence (Bonus Tracks)