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 0x1cf2f521119b63f0e616106654d2d14b90e8aebc63e1a835e6dc68cba7e06a38. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c087e23a-5ce9-4922-b8d6-2ac7bf3e699e.json and https://artists.proofprofile.net/proofs/artist/c087e23a-5ce9-4922-b8d6-2ac7bf3e699e.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 0x57ecd56600e87c0808ceb37b1622518367ec104ce00d43cf0dc6f0644952c996. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/QZS662163500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf396041da1379d91bfe7d51306e0de045495f9c0c975d9cad8b2cf77f8d22e01. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), 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/QZS652176120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x859978f0467308ee31e6131faee9c9aea0afb7e8ac49b85ea5cbc6cbd077ebf4. Chain 2 (Bitcoin): anchored in block 958987 (2026-07-21T10:53:44Z), 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/QZS662106399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x790918c736c2836034f680c94822b34dcf4cac9d8604043e6848825aacad30b0. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/QZS642175419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d03913352cae2e6930dde92f49d3ce2f8ff5f3cff0a056b0f9be2b67b42927e. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/QZS672233474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66faeedddba3ea77023215d54b2fc6effcb264ebf7a28acbb4157a56cef9ff68. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T11:03:14Z), 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/QZS652284009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61ee117b0256bd52823283c069acecd138810e7cbbdcc8f21f5ad7565348b28d. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/QZKDK2270017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc806550196d74298db5926b9a6d3a8033d3540e0bc4a8cf46a9d61ada3e05ac8. 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/QZMHM2343210.
I THINK MY ORGANS ARE IN RAPID DECLINE :3
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x148dbe71aafc2e884649b37b3878f883ee6cc348d1b28cba2758ee72a34247ee. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QZMHP2313640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8eb79e95cee6c98bfa5c1471661377beba286b1453d4b001e6edc0783064fdd. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/QM42K2499761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe986cd7894f58fbafec342be3f2161407e728fd1279fd57ac617b34d35df02b. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T02:46:47Z), 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/QZMHK2477686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c4a1442f8bf1baceb7257a599dcde0daa96638d76bf04d8d60de14e0f69c216. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/QZMHP2411596.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9d045603517290f7a3b2f3077eb17092935a526be7d3b1b722ceb60d3cbe093. Chain 2 (Bitcoin): anchored in block 956620 (2026-07-04T07:11:13Z), 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/QM42K2462716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xead8ae6887e1c1917576e50f33b77e33bc608fbd12173de64e1613ad234bb2d0. Chain 2 (Bitcoin): anchored in block 959065 (2026-07-22T00:52:18Z), 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/QZS662412527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb39d16d960d1b49204e6331af9609f85baad1d4e60be5c65658004afce026254. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZMHK2472774.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe565b2d66bce906562b8427f25024d674ba670f1470cf7277b1c0713f7d8e918. 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/QZH5E2445842.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x036d870209e590acd79ab97efd15e0fc9c0b13a44d75a06564ecc28510d9a270. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/QZPLS2396005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3df7899e2cc19f5095ba145f3e9c8a33d9563b830066a29840b916b3bc1770e. 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/QZMHN2258913.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fdccb4463b2ee3b4b2b50668c773cdee5fd979dfe77ae637d13b102bba02165. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QZS652185656.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8635516c9d12d0dc5eb11f9c6365a06fd2aa246be32b08ca43513aa9f22725c. Chain 2 (Bitcoin): anchored in block 957043 (2026-07-07T13:52:39Z), 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/QZMER2260739.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7a411897794fadf85eddbcff84ad4c4046ae8744bca29431be6dd8ae127aaf4. Chain 2 (Bitcoin): anchored in block 957820 (2026-07-21T16:56:56Z), 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/QZDA42202872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x502084952cf9582dfb4f324b1b6dc566b12fdae2e140518d544792543c2d2435. 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/QZTAS2434008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04af61bd0de78519079bc2a973294f1184f9cbf7382d487d59ead3f378258145. 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/QZDA52318836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x502084952cf9582dfb4f324b1b6dc566b12fdae2e140518d544792543c2d2435. 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/QZTAS2434008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b7986f3dca0bbd257009846d1d0fc87c80436264272f8e3a19b7fd8b58e7d21. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/QZTAT2347237.
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 0xa00e18197dbb68450f9127afe8eabdbb82a739e95f0e32760956c1028e964051. 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/QZS632208169.