1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0xe1b2fed24d7fce7783a3f8d5c9351447f1d4bad244e62612070da9fd13145370. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c495d31a-2ddd-46da-b627-f957b342d6eb.json and https://artists.proofprofile.net/proofs/artist/c495d31a-2ddd-46da-b627-f957b342d6eb.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 → block OTSBitcoinBlock must exist at that height 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 0xf0de2de43a4b8dc53488d2b39773dabc4aa00745a45d44ccb5a8d4e5b3997a7b. Chain 2 (Bitcoin): anchored in block 957569 (2026-07-11T12:44:25Z), 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/FR0Z50029334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe67ad34211f3f181c9df59a8e653b8c3db4caa0eaba43993af27e0e307c283f9. 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/FR7PE1702540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x549bcad9e79d1a806dc98d356990d36855f5e7fcb9e3981b8712bc55606b8a28. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-15T23:59:08Z), 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/FR7PE1702580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01fefb41167d7ff2c58e3f7d9d4f574227422395f4bb38167d3552f1e9a6ac4b. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/FR7PE1702590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x555c7dc798c87dc682c4a6f058ea857725ca665d2244158e33546a9bdeb06044. 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/FR7PE1702650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5577f737d2a4bc2e27bde19a42919c2c825698c78179e47d1224919224a8ec46. Chain 2 (Bitcoin): anchored in block 958242 (2026-07-16T07:34:02Z), 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/FR7PE1702660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26a9c49e5175a5c2f03f3de52acd00d98b7bfb5f12cdaaaebdcc30fb04292bb3. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:25:04Z), 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/FR7PE1801620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf05f459e5c78d41070a0417f94abea776707a437969319850ee31c5e39073cf3. 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/FR0Z50038514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe333d968b7db647a7623fa512120f3ad35a475706e2f9bf1775f37c53964cd64. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/FR0Z50038516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97ce106335cb9aa87d8b637d6c119c2fd23eeed21f2c98097fbc4eaf97701d0d. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/FR0Z50038519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3523b580a534d7d8057f070b41be4d0eac12094205257f1b6fb02bf2123a5ca. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/FR0Z50038520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa23c0586c04360f6a81cd579d3fc9d05f627eb973782f584774b11beb0e1b92. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/FR0Z50047383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd194bd9adbd70939ec112eea38ee66ebe440be5249e2f422e1af413f93f74ca. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/FR0Z50055280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a2b4d1b9230a4100b0529305208590794d54193acf7e8861c2048bdcae87379. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/FR0Z50055285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6427fda5f2eedb0e33944e02cded1616d9ccb4d8505ea55f4177f5b03cb4f036. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T07:50:16Z), 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/FR0Z50087340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x644e2c0980b7aea09ee794046d4c28fb9f30b2cd57953bca89f5216abaf4c036. 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/FR0Z50095541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x830124b42a073ff09f3bc5d3fe9e4e9bbc433784216d6c7999e5f7994ccff897. Chain 2 (Bitcoin): anchored in block 957569 (2026-07-11T12:44:25Z), 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/FR0Z50101425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe408646b7d765dcae3faa8666c006ee7be0431775fb6eee46730bedc9351e8f. 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/FR0Z50109474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d89ee0082ebac2843085308c7044568e6680ae61f7c5b25d2f267f8d28e05ce. 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/FR0Z50119554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2c367f268fcae00d0c85ef8a620e57dcbe455aad103c7a9f5a1291e3904a218. 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/FR0Z50110006.