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 0xb5a42d45de7d075cd4cbd28da1b2a7ae3204dbbfe02f6108a2df8b8b3f33ed71. Chain 2 (Bitcoin): anchored in block 953625 (2026-06-14T11:37:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2af27909-1af9-41b1-a12c-6c027d3bde67.json and https://artists.proofprofile.net/proofs/artist/2af27909-1af9-41b1-a12c-6c027d3bde67.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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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 0xbebf5140b4676f841de07b15910025522864ebef94f416a36a2b7732df928b44. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/HUMAG1600204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad39c94536a8617e02f745b0d80429c9332c7fb6bc73f32e500f7fea282df263. 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/HUMAG1600205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae22caeceec551a116ea5de206c49534fcf8bf00493f1eeed263fa6de989d6a7. 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/HUMAG1600207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63afde01d82300bbfef4af78020c10c135ee1b42d1a74ec7975d2504c4923a44. 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/HUMAG1600208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e650e9bac20ed5ec8d6fe9bbd7b25d5e4df3c5c5fa744079acc411a3da0bf47. 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/HUMAG1600209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0efef003fe724968791dff7d0619425206accbf88ad86e99ad93827e6a11af29. 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/HUMAG1600215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea26b54429d2a172c7f3476e250220bbf67b124236961f23aa57ca03a5a69614. 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/HUMAG1600217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a2082a43d714f185c5fceecd44ffaabb569ccd1b4bf93b033f0fc77a1d9146d. 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/HUMAG1600219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b8239befc59f66b74a75b372b12ce501a019599020ae2617ec955b0bf87d998. 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/HUMAG1600222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c9c90e59956931a444cc93095b0d8017204f374a085e8750918471c9d60b116. 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/HUMAG1600226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65f59df4aa15479844f8d34435bcae5bb0c9e7684ddb0112a623fb15ca76aeb2. 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/HUMAG1600233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9ca1879ef352e2250fc9f93edd4356336c8aadd88a7983e2356ab02a3276a81. 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/HUMAG1600234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc1bce042b638c642188f658beb23cfe2e73026f2d7d7afa239920c38e35279d. 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/HUMAG1600235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84fd20c69b2f5f177ca4eb3067c8d8c85ae0c7e55e69a0ef7161f9fa85f1ecd9. 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/HUMAG1600237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a031f109ab7418daf99ff42de348f644e5797ef657b76306808d1529f7f29c0. 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/HUMAG1600238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e515def78b2bc11d9313a4301d74bdba37c19cdb4e5a2ca75731e5599c1d015. 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/HUMAG1600239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b92826fe0583f0e4c109896aca5dac853f6115f61355fb77258682fe6591911. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/HUMAG1600242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd126522e44665583945f6ae2e6fe628ffccd34eba7884ac45d9b49cf6a469e20. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/HUMAG1600243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4abb426ed2472603135a2da9f915975526c969b38d63f2451b486b7e19e36933. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/HUMAG1600246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdbdad0d7a4ca5f8b22ef0d11550e4da7d3db2b0c502109c3f392f9ab4ed8ef2. 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/HUMAG1600159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd0f7d3b8063d9adb98a115b5cd1b8a17051f8ec5beae2a1b503dcbb514a39cf. Chain 2 (Bitcoin): anchored in block 957032 (2026-07-07T11:43:09Z), 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/HUMAG1600166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd555a3eb2ebd5062d795cbbb65c557ee744aeb4de641d31e3061635034df03ee. 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/HUMAG1600168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dc3fdef75aefad9f373306bcd9451b82acc984ce6c2409d17e0ba19869cdc27. 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/HUMAG1600169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3118298493b3717f24bbf12548f1104678e3ab59d36354359b9760a397336449. 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/HUMAG1600172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7967f3ce63be7e0b39ac9b9b899b720d88121bcd73aa74bd872f7951cb2c0cd. 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/HUMAG1600178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09f9ba2e9c0e1df24e5a4efdaf261efe6c0c49f626d4156bc90f25732615b6c6. 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/HUMAG1600181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea0448bf7c662b3ae77ee3720e98f2fb1c2cfb50553a2040d82d1b9afcee3deb. 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/HUMAG1600182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e08589043c940e9a682d97b59b4c17c825a53c4e3b0646e9d792b19fde797e2. 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/HUMAG1600183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7add793454b1e8fac0263d9a2499944671f1abfcfa05cf0f46d83bf5bb76e8f9. 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/HUMAG1600184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ceb9a35c47e12f8ab8e23f840deca719a91db8cf0c5b1e359ab566827bf6838. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/HUMAG1600188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b96b3b1f1f9597aa6ba62a050f30bc6d0b53dc4ec067e27350b7adf3d05b7a4. 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/HUMAG1600190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe83876fee08cdbf607fbdc635fa92dd884340d10e4d8ea9cb66ce911e6824691. 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/HUMAG1600191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac08eeda37b173a11db53fb0caa31925df3d7f8e1507f77d1eb495caa7c443c6. 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/HUMAG1600192.