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 0xe0d8279049994c9f165660e97f178609962d60df5fdfed2d3267878a3ac8bcb4. 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/51e921ca-0fbb-4fc2-869b-3433c68569ff.json and https://artists.proofprofile.net/proofs/artist/51e921ca-0fbb-4fc2-869b-3433c68569ff.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 0x83841845aa910bff55221ea56e44ef86ee7b0d19d2a621ccfcc69d0995a36a3e. Chain 2 (Bitcoin): anchored in block 958793 (2026-07-20T01:45:47Z), 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/DEZN82430634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddd74a6caf5d230565383ec88dbe3044eb677648e69cf3d1b44371d5685c2a4a. 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/DEZN82430628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bef8149a24bc94b3acb1527086f1b5e2624758d6f517db1ce7cf5676568fda5. Chain 2 (Bitcoin): anchored in block 957852 (2026-07-13T11:25:45Z), 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/DEZN82430595.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43afac200d804537bd0ff9a39dab59337c1f408a2f4f00c972d3cee4938e6d34. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/DEZN82430635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2efdb15a7bbfcba9a34c501ab67a536512a07039998e54ddf9eab4cffe432d08. Chain 2 (Bitcoin): anchored in block 957756 (2026-07-12T21:36:27Z), 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/DEZN82430630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fb3d96e6fbf7054ba291b4ff1360eb5badd59bb8e4df4e8769f5e4662b74edd. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/DEZN82430623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74bd900fada148372a087a14fb18dc42095783f5c6e30a6e8c6842f8f889adca. Chain 2 (Bitcoin): anchored in block 957756 (2026-07-12T21:36:27Z), 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/DEZN82430631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6aff07f454d59017bcc18ab284311a94a9a3e8504d3e7f7d94c6f7ad87ba8e3. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T07:01:59Z), 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/DEZN82430593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e53f48332c4f12236347af8dc793ee231a4b46a38eba5ed2df3dbd772b32c03. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T03:04:40Z), 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/DEZN82430624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a4b1fccc8263c44603bf79f2d3e629e204c87046f7dcef6dcec82b85cf0d98b. 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/DEZN82430619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x562148ad85827306df1322167751a4cfed591bf679ca4e491f1b87f97c7ecfab. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/DEZN82430592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d6315b66ff92e908af49f796524750a89a52f9ca26011a6c0519e3b5c2f8430. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/DEZN82430632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9466036f7302efa15b8ce5f1375c7b4986f5cf0438d312bb056d93738ad5492b. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/DEZN82430625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe631eeb6cc504075ca5e68fe7c4b65d031bf43f2cf54ae8d9743158f92dc0db6. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/DEZN82430633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84f0b64bff6b9adb5a35928cb69d09e60fdfc3a61170df86a3943f548a7108a5. Chain 2 (Bitcoin): anchored in block 957756 (2026-07-12T21:36:27Z), 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/DEZN82430622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2766b507839a675ae9d43ad2fef817ed39d5ed66fc9b297b592995132b20022a. Chain 2 (Bitcoin): anchored in block 957756 (2026-07-12T21:36:27Z), 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/DEZN82431329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9548e77b8fd452418a12693f8709d3804b07ab6aaf5979af2cae505480a6aac. Chain 2 (Bitcoin): anchored in block 958798 (2026-07-20T02:01:09Z), 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/DEZN82431304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd58d3ca7987541a8f5a7722f47967443d4973b803635f0dc3c7191fe5e220c9. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T16:21:50Z), 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/DEZN82431328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fe66b373198e58e6650d235be58e88583c8b418cd367a5c87060eaa3ce24601. 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/DEZN82431302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe37b698301aa49af76282e2c71f6f1bd10603cd733b446b5dbfe1020d01a5076. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T04:06:11Z), 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/DEZN82431297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ca75bf32b4730dc95b12ce24ffb9250262926b442022a682c8997dcf3d2bd14. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/DEZN82431326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x302f3faf0b9cef81ad9bd796ed6fad8e31f8bca423f7807b19061c94677f530e. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/DEZN82431330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dda07fd07e8f566fcbe4610b4c40b36bbac6e9576f49e9902cc99c52fa97853. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/DEZN82431236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfb8bdc62293861e01b085f70d50c60fa1cae16f1a9f23cc86ec5f1f84505894. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/DEZN82431932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2792c0e41babc6f64b7556a98956b1749f1fe2427f6751cdb17d061a62eb32bf. 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/DEZN82431905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7f7155c5bccb1ee5b61ff6f63e0b478caa59ca71d905b73dd5de2c19d89c87a. Chain 2 (Bitcoin): anchored in block 958736 (2026-07-19T16:01:42Z), 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/DEZN82431904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x915d5db055fd115c840c52a08c693e308a3852beff95b02a2a44b7df9b83b5d1. 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/DEZN82431907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fff1c4bae09141f1604040d3813ffaf0ab40cfc7bcbcf3aa992e740ed80aa01. 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/DEZN82431854.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd64df35263caf7793dc2990189f24ad72744a410790781d89918a4fd5cd1d4ce. Chain 2 (Bitcoin): anchored in block 958756 (2026-07-19T18:58:41Z), 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/DEZN82431909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9202de0c9258783c422731497f91b6775b1fc0a1570d93ff88c59f4999412b0. Chain 2 (Bitcoin): anchored in block 957852 (2026-07-13T11:25:45Z), 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/DEZN82431855.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc401e60332c227ac66729cc8de5f3d58fb28daa55ba3c970afb35cf979155a22. 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/DEZN82431902.