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 0xca2eee11e1d0e083191722493db3c0a3aad2c78288838f9b1378747c77ba6968. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c77372c0-83cc-4f96-a6df-cb235de54983.json and https://artists.proofprofile.net/proofs/artist/c77372c0-83cc-4f96-a6df-cb235de54983.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 0x6e0729ce582fd12c7953c295485c462ee6209dc904580923ae86aafa9250dc67. 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/BGA261355501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf36361a7a7832e67905dc455571895e62fb58d0fbe986703217276d82ffba989. 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/MYSG11010703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f737bdd34e8984966118d689b81769c3f78e25cf732e8eaa04733e538f7b0c1. 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/MYSG11010704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fa2dd47d46969e630d0f4ff42698304ab344d14906e124ba8bbbe82ee1fbd16. 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/MYSG11010706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96211be549de79b6177922bbc095cf26670a1c8b57f1280d02fad5258d07259c. 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/MYSG11010707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9947cd6e7cb7656f5459ba58df3ad8b122ea3e5b33e1f52b8898ffbb18d6855b. 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/MYSG11010709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dbed67ca962877d13e569bf47cee14120c4fe6f36790869b714df958868091c. 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/TWBA71400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe79059d96f6443063a852a6b63d1886c1143070399cf12e0fcd3950523741d92. 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/TWQ371301001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb71be94c8e7761dc0c1da15ddf3a77c1297f48b7f13d6adc255fff5de6c9a63. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/TWQ371301002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x272d2b84f377ada3eefe02eefc1ae86412e514e2a251dee01228e7dc011e188b. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/TWQ371301003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x652d28f73f03c582ca11ac05497c63c2b16e5e582ec42516b346b894aa7b14dd. 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/TWQ371301005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bff42fca97d048104a27736343ffef13de464f42c97ffcc2add1732fbe1a88a. 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/TWQ371301009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6244d80722e840241821f9f3c3a84e11906cb93716e3016cadc0ff2abd41ff61. 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/TWQ371202001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef5539237cca9a8cfe41405ab74f947e3ea5a97a4ac0820781c727c36a4a9515. 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/TWA450172007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d0880c5933307e5cfb1efb9dded592875e78bf16f8a9df9b5a9fffd9240e2ce. 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/TWB879803010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50e3e4269a20208dc19193dda20d3918f0cf9146305e48d73b0bbdb6ccf19636. 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/TWA459336501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42fdfb308b9ed9e6358ebbd6c23f695fe14ae6fc77a54b09bbb2d22c078c14cd. 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/TWA450893001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc205225d98ce23d56805fb0419081c135b304ebfc974d068766b70ec8c80bebc. 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/TWA451018991.