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 0xbc9c2268e1d0be9fed1c14c96c14d7d896067ad5f3208a2ef1a8a6570d32fd8f. 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/6a1baf98-1f60-45e0-9b43-bd1caeeb0dc0.json and https://artists.proofprofile.net/proofs/artist/6a1baf98-1f60-45e0-9b43-bd1caeeb0dc0.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 0xf1fa0a9719ece1aaf3bfb4a6fe610ede4fb477ea3eee601beba72b47ee1597a7. Chain 2 (Bitcoin): anchored in block 958501 (2026-07-18T05:33:04Z), 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/SE5Q51813341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c0cc743bbdfa539948b5a8d7d73985e1d860b70d40ca72a8880563522a57bf5. 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/SE5Q51901777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f717db2179e2e8eb0f072ae7e5be6a4669a98824a27da24f7a1ed3cdc137f76. 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/SE5Q51901786.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x813696c15df216653bd87ca4f75261d9dd34b3e452803306a696d010a3508bd3. 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/SE5Q51901948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46c0c4ce3330009fd3a5dc5185af56be319f9645822002fd5328f31f63ed145b. Chain 2 (Bitcoin): anchored in block 957048 (2026-07-07T14:18:56Z), 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/SE5Q51902618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x277239063c74c54ac619e8f21c2f40b52222bac34861005b67d6b07c80de0517. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/SE5Q51902653.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84e09368e8504b258a1df2230e1944066973cfa8707e18bc7276afc6e0c59adb. 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/SE5Q51902023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb53a2ea31a6fd6ad7af166db3150975d0a9ca458e90b8b0ccf05758864547852. 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/SE5Q51902290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadb672d4dedb903847adfaa34e4b6ff749564b3de17cca819023fc7bfae0d9ba. 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/SE5Q51901852.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd55afa582b5bf487e965da744ecb0d5889ce6ecab66f3fb3e7ebfd8eadd0b49a. 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/SE5Q51902654.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32e36acd9ea6db8e14a1851c34e84e1a19b482d2955ca396f4a0902ef3e73688. 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/SE5Q51902342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d449113d4d0fa7a5aa2a8dd9c0b20e538e81415c3d7117c8f2671aeeeb7228c. 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/SE5Q51902467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca8bf8fc642d7640a5d243cf7793da47b320267a2b338d59d3c32d4ce760f531. 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/SE5Q51901967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe17aa82c4931b5b76a136c2875b5eb066d97d195ff31e142e9d9cb9a4b69f44. 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/SE5Q51903668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa39855eff1e52fd04606c67ef4ffa17da0bdb8e8836daeb323cac71191edada. 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/SE5Q51903671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc9ac9cd438453228dff795cc37b3d473a2049edb067be9df6806ac0c1bbbb78. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/SE6I32055433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8cf287b6c58e4bf4a227e1c4d4539ca3f46468f6c2acb7fae36b3d908c0156e. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/SE6I32089499.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb663f3eec8c30a58f08d231c08a6b6f0573758ca7eb014b4ce9a8c687a1acf99. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/SE5Q52000571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9443722881a62c15ef0f03d2661d73547692c87cfd2b604053eec0d98f857a9b. 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/SE5Q52003310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b9f5311421521d8c0dfa325d35ac52df26fe7d0be2bd843a44e6378698192f9. Chain 2 (Bitcoin): anchored in block 957751 (2026-07-12T20:41:42Z), 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/SE5Q52003161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c60b0f5f09468f0191a5c5eb0a1948e0d220b9a094e9079e66856259ac6b3ec. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/SE5Q52003272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88dcfbb45c9e7845f0a251acb470a12cc72c3665bddf5ecedbfc187a48db8997. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T21:34:08Z), 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/SE5Q52100489.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6be407678e90019ecbe2c6ca23d77cd65b2ff652b51686d281e2ceb6cfeb7b8a. Chain 2 (Bitcoin): anchored in block 958069 (2026-07-14T21:37:55Z), 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/SE5Q52101723.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb297aa8f0142b87f84721cdf4fce2370aee36ffee130982783171d2ac5593df1. 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/SE5Q52002352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c6bceddd68c079a0651c22b5546f2cc8539dc35f11d4a21d53b494f2cb095b5. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/SE5Q52202541.