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 0x101ef0d66d033f0eadc316190185f9f5938c2895a73438ac138a4aa455889c65. 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/a1eaf9e4-a9c5-4711-ad89-6f8ebf5caa44.json and https://artists.proofprofile.net/proofs/artist/a1eaf9e4-a9c5-4711-ad89-6f8ebf5caa44.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 0xbcc6f46b03ad90f103f102cf8ef253a03f5f692ff63350c0b0ccc362fab7f114. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QZ5AB1767933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b54b594602e30c97d9f14ae8647272acb0866c4a51b57e12073949fbbf65c5e. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/GBLFP2376819.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2ab7d968f9b6f1658bc04c666d829e9f428f6af1e8b7bb1b154725678b98d29. 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/GBLFP1880182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc54a64b802c52aab6fb4514fc0779e7f61b72c4b9c558fb5f81b161acfeb2bde. Chain 2 (Bitcoin): anchored in block 958828 (2026-07-20T08:01:21Z), 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/QZFP51962458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x391e7aa7ba98ed9c78f4f7163b359707febca7dd79b575728a5ec6fbc04ebf5a. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QZNJW2027302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeec85e4ec4480b07d3e26c9884938ca17c504140625153665e77115f0d828cd7. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/US7VG2165201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57d2009f8737386403f886d4026b9adf747c099242135fa97c4d5ef04ac1f1b2. Chain 2 (Bitcoin): anchored in block 958366 (2026-07-17T04:59:09Z), 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/QZGLS2465751.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9f51d486ef3d0a9ca6097cf34b1ee64b9a1cd80312a145b3912416106beae6f. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QMFME2590283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8cbbc6d2eed1a4507e7163087dc4f2e7fd4fc94f214facdf1574c66175e669c. 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/QMUY42100101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6600db6b652e2fe95333a56a4902dd6257c3a88c67ff224c134fa23e14da9bc7. 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/MXUM72200018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70e093b719dfd7efea64bb5f8f8d5426c123512d7032a2618270f4fe5611c625. 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/NLXS81700107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c343a55419e5d156e3c7c1ba754718decc4cb570d6a7a3836da4ce185b453c2. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/MXF152200906.
Insomniac Records Presents: EDC Mexico 2018
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d96c8a54549ea0cd307f4bf1ec13ff41f56e383c9507730d25f05862b74d27c. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/CA5KR1712275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d96c8a54549ea0cd307f4bf1ec13ff41f56e383c9507730d25f05862b74d27c. 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/CA5KR1712275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd18dd40e9b27ebf6d96061bf1e03cd966557186380396b2735bfdf4260b97056. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/MXUM72103535.
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 0x3a14fd60a6521a26778daf3a0428eb5e4656747ec250257afc1213db680e891a. 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/USZ4V1900034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5975cac0fbeca1610b7643b5ffcd12e1a5df40167c195061d5dfd59b85a281af. 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/CA5KR1966496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3e52f3ca48a86dfc931d3082457c2869f194a06f8e7cc41775496a1ef970ccb. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/QM4TW2378315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd9cbc98af880c3996616126d65594064586e5e97eabfe64576acf83bfa9134a. 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/USA2P1914375.