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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 0x67cee63323c1153f618dc25b0148f114531a2d596190d597aa3ef12417f8a5fe. 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/a6f2ffc2-28dd-4118-9f98-597f20b26cb3.json and https://artists.proofprofile.net/proofs/artist/a6f2ffc2-28dd-4118-9f98-597f20b26cb3.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 0xfca9110efe03ecc35d4864304a1c2c9868ba90b53d22c5ac05bb69101a7c3c14. 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/BEIW12300069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67b74bfcd6813f0198a7ea2a73bb485479015075574a74f16af96171e1da10f7. 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/BEIW12200631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0295ef882792f69c5e8805b42a61593a71862648389ebaaa5eaadb1f19d7535e. 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/NLQ8D2100878.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x169d7c8a23db9de508ef01e6b2f11e0e2e12440423da0261c98c8b4728d012d1. 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/NLQ8D2200084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x361070884a1dab7da6b81b8e207b3dbfa0b7cf9f7c8ed9f675ced77064a6a541. 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/NLQ8D2200092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbfa0f9dba8d68ecd778c400f149953408124369e21cff097f6c1ecbba713c6f. 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/NL4VT2100103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7aa8bcf311539053d825f30a95f8969b39df1e84bed4b8d49a4730d38657c191. 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/NLZ8W2300129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fcf4adf55548c67e8bcf001c6da4c27e6d765f3f89f912496ebde64fb688a8d. 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/NLQ8D2101988.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07cb71fae4f1f11c844d8f8188eb49f31d9c6fd3fafc08ea6841dc253cfb794e. 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/NLZ542100568.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1e498b456bb6bd3c2b7767b287ba6ea5b0a6e63bc47d12c0d426611c3fac105. 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/USDM32458701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa07243553d7adf5beba96e28fd208168bd709723011c9c7b9df928bcb1078114. 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/GBKQU2468669.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60296805f37cf1d8a40df274fbad0ee4aa2cb118af6cb0eb7c65832821a64beb. 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/NLQ8D2201360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f1e1aeb05a63be15cb3171b82a622787042124a6786f8dabd8b511e99151b53. 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/QZZ8A2401795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4050890390f174fd05d7efae4cb3491ae65584e63e2df13c03b25732a32035a5. 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/NL9KQ2390484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3584fa73f4db225374e6c69fb53506dcee867e7da49b3573cafcd8a2afef7ddf. 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/NLQ8D2400376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f9e7a1e7d13299e47f3fab3f91d8b62b795f673137956eac8f27adf723f6951. 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/NL5WB2300149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf022ca9633fd838617211963878aa4e740c625cdc1e00a9614c48f069456d91f. 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/NL5WB2300077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b9e1def2c5ce0f55c033d417ebab5b3e448da63fe081c6d5054a90047e799ce. 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/NLQ8D2300189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6cf5aafc0fa0e8f7c6c1fe18d07f367f1ada6dbdb53fa6660f1585815a2fa24. 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/NLQ8D2201398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x895891165a9cebbef40dcbc28197d548cf75263ef2626346da5bb2f736604a3f. 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/NLQ8D2201014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x010da6cc1c39420cd4ff9fbe10d5dded5bd5de1456092ccf894f5d8ba515d0d4. 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/NL4VT2100116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4a81f8895f8bef34f81ccaab16765ed459e961cf382e3badef0b6bd1d41a0a0. 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/NLQ8D2101823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd42d07df99405b5ca6860b272bfd38d2b5f24cd6fcc3fd3d31588f708427125c. 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/QMFME2124980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8545e2d9ebd89fa76dbd33acf96d8a24fd5686147e74ba9474ca184a34d75033. 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/BEIW12100085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18b4371d81fa0a89fed31240dcc927662fa7d8a759fe0b61f83be45043eb7ed9. 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/NLQ8D2100474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27dd744b5276173544761190f1113686e0146b30e8220145c835f87e066fe7d9. 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/DEXO52067660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dc61612303f47496eb302b0d772bcae7f73270689b7575197724793c65d7ad6. 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/NLQ8D2100014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafcda82c0b09aec77d09aaf97b1336685df1d41bf078d20de2a7d5bc7c7ae2a0. 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/NLQ8D1800088.
A State Of Trance Year Mix 2022 (Mixed by Armin van Buuren)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5df50cae0ebb9449f5cef66409df81d9c40885a6322a5774d205d2fa6a6c4d99. 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/NLF712209232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0d3a1dead9e374c226b4ebe1c37af0150d02407d602d1a7d41727dcab7b58f6. 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/NLZ542001586.