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 0x0ea5cca9179f193aff25e65d6a82acbfca3185e9fead72e95c7e914cc4567fde. 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/8757ad87-c3e4-4d40-89ff-4c9cef16cf80.json and https://artists.proofprofile.net/proofs/artist/8757ad87-c3e4-4d40-89ff-4c9cef16cf80.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 0xb2751245f93593351a67d7e487715f5a62e19dfe7eb3b90a0983f19fcdcae23e. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/QZHN32181757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec91f8b067e9ca0bc3d90bbc467add998406cb6e85c5ded3626c8830d3fe8b7b. 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/QZK6H2105864.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a2d74e8b270dbd9ec8f720ff587a375ea094494d58df005d40031a90ab82077. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/QZK6H2105865.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2da44b665bbe1e40e3bbdb188f28ebf7a177c2f0e8f46fe2a548398a88186c4c. Chain 2 (Bitcoin): anchored in block 958514 (2026-07-18T06:54:37Z), 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/QZK6H2105866.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac44ab7b04f3b62100202d020e3ad5bdf19eca537fa8a51b2fdbf907fd9d3641. Chain 2 (Bitcoin): anchored in block 958121 (2026-07-15T08:02:12Z), 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/QZK6L2273479.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb21134128a362f11f2fe30d082eac99b63b54407223180b238debdf29197518e. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZMEM2255644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3eba69e4a4d816d7752c1258eb37fdfbd2347071d1db1f4b785f2d76f91fe070. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/QZMEM2255645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3a4c9a0eeda1a93d9ba21db1252343ff053434ac94d22d182ea97cbb5775f0f. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QZMEM2255648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x325579eb86401a1baa2bb02aa80414feb0c449791a994f93585c2c773fa72958. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/QZVEM2373557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x226b5ef8a2c4ff3664a0ecfffe32623a111ed01bbafc17b0b980f9e04849bbf9. Chain 2 (Bitcoin): anchored in block 957805 (2026-07-13T04:34:37Z), 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/QZVEM2375809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a4be2e8380fd237bb9e1fa788210a6d34f00d62e1a0133027f8d814f454da82. Chain 2 (Bitcoin): anchored in block 958538 (2026-07-18T10:30:13Z), 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/QZVEM2377882.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ef85bda9663b15feeba2512cd97130423c6005a13d1e1705ba42e28bfdf502b. 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/QZVEM2362880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5092dace0199fecc63b580355c37565e6b394df7e409420aceff97c4e69db67a. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/QZVEM2377885.
All My Love (Ghostly Echoes Mix) [Radio Edit]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb904e990333973429961001734a6848f70de48f6792333a51052a9a3d1fb65f. 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/QZS7J2346843.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0fcb15a9b0e68c6e3505201aeb56a95393c77dbe7fdc157f1d482c160740b1f. 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/QZTL92311860.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x841eb42fb6e8d7e15ade61150c9831ac487ee4509df7a5ea7eab247916b303d8. 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/QZNWS2356335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf19855e0fb8d0f39042f58d19d1bb4db548ba37baa81806217da7d329a77f87f. 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/QZNWS2356336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53a3c15e22dd168e631a7b809eb412c41126c1294a4c8c4b7a87a7a57d3f1f9f. 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/QZNWS2356337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8c26be03e618153244aa878d2bb737add3e3358776bfae32dbbb36394dafbc8. 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/QZNWS2356338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09d701e3f9ecc4d3ed6500f4ab5bf8e33880df6887b6745b5dcb267c40ef5583. 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/QZNWS2356339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdd2dbadff96ee9df4f3d9eda7c2824cf883b86906813e95f489c8fd9bf2bb1e. 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/QZHN32392532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94fb13553550a078c77fc455f4d2c5e8fb8d67b5dce6757f6aa48bcbfda75024. 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/QZFZ22187764.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdd2dbadff96ee9df4f3d9eda7c2824cf883b86906813e95f489c8fd9bf2bb1e. 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/QZHN32392532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45fdf907e7a35becf5de3921a5e4af77845837f13d4ffd76d21ac823ad408496. 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/QZES62222288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d1e49b94c6dfb8f26b4bf4f0abe9833ed8b57f8e544860a031064e8b6c40efb. 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/QZES62222289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x841eb42fb6e8d7e15ade61150c9831ac487ee4509df7a5ea7eab247916b303d8. 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/QZNWS2356335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf19855e0fb8d0f39042f58d19d1bb4db548ba37baa81806217da7d329a77f87f. 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/QZNWS2356336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53a3c15e22dd168e631a7b809eb412c41126c1294a4c8c4b7a87a7a57d3f1f9f. 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/QZNWS2356337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8c26be03e618153244aa878d2bb737add3e3358776bfae32dbbb36394dafbc8. 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/QZNWS2356338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09d701e3f9ecc4d3ed6500f4ab5bf8e33880df6887b6745b5dcb267c40ef5583. 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/QZNWS2356339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdd2dbadff96ee9df4f3d9eda7c2824cf883b86906813e95f489c8fd9bf2bb1e. 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/QZHN32392532.