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 0x6c47932e5ce3c6491ea6b6b014e25b65235132ca263852465cb21a02ad4b186b. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c91dbcad-2bc3-418f-918d-2fcae5cec3c1.json and https://artists.proofprofile.net/proofs/artist/c91dbcad-2bc3-418f-918d-2fcae5cec3c1.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 0xb63ad92ba20030cf054b4edee8353a9a8dd14e734654da8feb6482265552ca88. 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/USCA20801719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x117bf62d20f7e3265348687f5cf8b5346c787f79c43ecb1a2d6ad09454e5cd52. 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/USCA20801723.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x207f7060508a85e82c80d88fc35915c50cf4888ee9ac4e4eff5d2011c8316e90. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/USCA20801726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b69800b58dc2a8b0262a62ac7d94b90eca4ec94e2d6358e1430da153afcba7c. 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/USCA20706830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf61494521f018a5cd89ecadcb811443a0cc240a58bd16e567137b282822cb4db. Chain 2 (Bitcoin): anchored in block 958514 (2026-07-18T06:54:37Z), 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/USCA20706831.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bdef1cb3324f09eb5b040f717f0ae8dd5a1de202ca68c04b1b959fc38281c11. Chain 2 (Bitcoin): anchored in block 959089 (2026-07-22T03:55:59Z), 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/USCA20706832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb35ffaac487b62a9cf3a144828e8967ddc8905d23266df380a4b4cd301a4268b. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/USCA20706833.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54c95193c4f0ee5092938fd403ba54d2f7f1b893904f29905a61152fef99260d. 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/USCA20706834.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98e5c883c061c8f92c22c94e4b1cf9ea6f4d75f352e2f7df9aa1e29bf20c05c2. 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/USCA20706835.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e5cb4eaea6854a6aca5a8aeb877873d1c8eaff896aaa6c4bea58f957ce28ba1. Chain 2 (Bitcoin): anchored in block 958798 (2026-07-20T02:42:35Z), 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/USCA20706836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x447228c2d864f31a91b248ab0a00a30511630674d15ede0ce2fc57b55162e79a. 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/USCA20706842.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x083ffd3f7e9563fc1d4a93f27b9ba25a9a0238f3385020309dfa3cb767842c30. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T18:37:19Z), 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/USCA20706838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cbdea616dd95dd6132a324e7fbc967203780be2b727e69617de7351df2daa42. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/USCA20706840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52fd8830f26e2d9d46d5d64f1f3ed405c23757cb5f827b240b7301cba9aa04ac. Chain 2 (Bitcoin): anchored in block 958945 (2026-07-21T03:18:57Z), 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/USCA20706843.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b4702be7de2bfef0f588aee65cce59b2e674c68a3b398fd67abfbffa6046b73. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/USCA20706846.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a2cdf51100b2c19d5d5b246c21db8c4f5c1ab56f7a77e5b2d839c9a8f0e76b5. 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/GBLFP1418705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb46325ab4c2b8e43c13fa4904a3da9e750466d4eda33a1b9342e7c327444ee73. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/GBLFP1418706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4887350719d6e220afa7790b62ff29cb9822ff57d1ddff7bbae0c8c7655f5151. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/GBLFP1418708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdae8298885b3a2fc8f5c4afe7716e100a17dde041c51d6e3009a087116e511c6. Chain 2 (Bitcoin): anchored in block 958251 (2026-07-16T06:29:25Z), 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/GBLFP1418710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a159ec1b39329b2bb807a067befd6aecc1d6a765730391036c944f628f0f5ca. 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/GBLFP1418711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0fa2c8f4194a5dee357b2a277c69606d578e1c4144097cd70b39a5e92d8c7e6. 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/GBLFP1418712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda9c6fae00ef5fd67b4b8ff6fcd63b98e6a348d7b45950ad32410a17298c9169. 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/GBLFP1418713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a2bba894b366af207e5d5b59535433bcf7c5245665021b5d1df407fddf34a47. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/GBMA21400053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde3c449117332ba186028336e9bf01204080cc8989607916672da5014bd418ac. 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/GBMA21400064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ec04f5f795b5bef6a54d25e1dd754c37af1054297033ddb6bac1afe64bcb001. 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/USCA20801717.
Calling Occupants Of Interplanetary Craft
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed9b6c2363fd8779abb16b43f8b29ae2a0d7c07c17c501d41b9521a14d972b3c. 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/USCA20801718.