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 0x49fdf9e071be20d6c1b5167bc7fa6a1def9ee6da7aa5cbd69622b992d32c142b. 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/b9be0a31-9a6f-4aeb-bd9d-1b6ab33051bf.json and https://artists.proofprofile.net/proofs/artist/b9be0a31-9a6f-4aeb-bd9d-1b6ab33051bf.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 0xfa327139930fc1f9ef9a94b53c1a9280e00bd213b2f785ea9c1cee13d6959f67. 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/NZRI11400928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1d759d674d87681308eac347ff6c5b04cd6a9499bdb6d727fc7a25aa15e5693. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/NZRI11400929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddb088d20fb9fb687ed805a0308fb743e2f3b6aac096bdf541064d729dacfd3d. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/NZRI11400930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50e1391d56f2747e6e09d1ea7f94e2dd7b523d170fb2f1b0682f8b25fd164b98. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/NZRI11400918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7249a4969ad3dd165f9a958542bfd83c2b8e2e3d8cba9c2894f3d419f74063ab. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/NZDV11600005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdadfe2be62f575d986b01be52138fafb58e32c27ddc1bf8d9625fc6439366927. 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/NZDV11600006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff85e5472d54f95343e6b5e5e8694e5ffb303a569fa233c141f9876d9e0c7460. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:46:09Z), 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/NZDV11600007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10e044a0e67e9a37db9eed8bd66c96c36c97afe9498517e2a3be3debf02620ff. Chain 2 (Bitcoin): anchored in block 958268 (2026-07-16T08:56:51Z), 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/NZDV11600008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a949f12358c283f71c0d60e2535a7aebbba36b7cb6ba484979a33b66dc14aa9. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/NZDV11600010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f41ce42bb265ff7ddf47db670d614a621ca2d8b8587853ca0b0a9e7ed390fc1. 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/NZDV11600011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x067eb25522f0c8576e49837d7e70d5897ca3a29e4f813616e9aed056ca28b28d. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/NZDV11600012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98f855a49df8d0843f0ed56350e99f24a2940b5710fff93dad2c7d00fa16390c. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/NZDV11900002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8be26731652c9f1dba8dbd7aefe64266b57179a7fc308da54967966fed4b2787. 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/NZDV11700001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10534464de998641fbf9270172abb27d51d7e2275fbd1b4816107d7491b89d16. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/NZDV11900004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22bc47167f8b0e8fd01f50aab301e10afe191322fe268b4f8787a74c002f24a0. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T10:44:29Z), 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/NZDV11900006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x638431d20615a2fbf7172af337a83ae64e0f81bfe257c3700f811f97aba814a1. Chain 2 (Bitcoin): anchored in block 957867 (2026-07-13T14:55:20Z), 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/NZAM01801486.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62e1248dbfc65b5335aac54a25fc1a064493a6f1bd4f8af322f81a9722ac70fd. Chain 2 (Bitcoin): anchored in block 958122 (2026-07-15T08:02:29Z), 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/NZDV11900007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2c6cd1dab3a54a4680fdb615d724af8af6c483b0b9e73ccf9de9e0ecd33d725. Chain 2 (Bitcoin): anchored in block 956426 (2026-07-03T01:37:49Z), 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/NZDV12400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd13fd6db3bf28882cf8e63f38e5674f18ae2fd9722fa25899e2e01e41c2059af. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T09:16:54Z), 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/NZDV12300002.