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 0xda1500efd4816a945c9b49f46833a75d31ce2c20d12eb9bf7dc1ed52d5d7e812. 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/6ae2442e-8d01-439e-89aa-3f12b1741f1f.json and https://artists.proofprofile.net/proofs/artist/6ae2442e-8d01-439e-89aa-3f12b1741f1f.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 0xe3ea4dc1785d8fc0ca744b63050076bf6524c4efdd5f1df749afac0756db8823. 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/ITC091500198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77536cf4c72f098e283792a5166442dc886743d043818da591129f6d6643c336. 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/ITC091500220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9847633f43531bad91ef9b8c95aa0a64b0c301ecda64bbbe21490b2d13e5686. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/ITC091500199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5b8bfc39ffa9fb0b0048a8ecb9558df5b875d272a0899b3d46f68ec939eeebe. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/ITC091500200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dc2be14548f8f74e73cb4a4f89852da5f727474263b3c325d5f0e16771ebaf2. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/ITC091500201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0988e7226a46d3a148e36a6f0a92b623e92c0b64d9ad96b0d2c20c8f6e27c914. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/ITC091500202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3d01d18f08b275e44a97745a7696911059d98cc33a117fcca952910b2a31c0d. 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/ITC091500203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf38cfd0f751dee6e72ab1af9e6864dbe77cf83309219cf7b0d89fcc99ecbb195. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/ITC091500204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20551e1378016fd26de01eeada4c78402dd70c0e1c9c8edbaf625f2bed7b666f. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/ITC091500205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a2204ba3e64e14505300f41febd816840c18ea0e73b8365e2615dd1a9485fa5. 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/ITC091500206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x043c076f516575e64baf36f431a466598a8b8fe2f63eb792fa932cd3de324f02. 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/ITC091500207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x734971587e47525da2a148f6827e1ffd30c38f0137ed1ae0ad1b66cd06414f37. 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/ITC091500208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd382f3fcdbb756e53038add3e663db4a73bf2c1d3baadf245b836819237deba3. 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/ITC091500209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2685397f2a27d142b66761fa4dd554d540fea6be8885d68d76863696424411a1. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/ITC091500211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bb7e1849c4926755a1887f0cc99576eb08062f06a12bbaf8562c689bc7e2c8e. 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/ITC091500212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x071e42d8acfc97b2a7a998bcaf92e07ddc09060db8373cf9982a70b0e1eb7f44. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/ITC091500213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae14b44c1f4eb3a4c5b24024a668d110bc3f426bcef11dc5587cec7efc05a5d7. 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/ITC091500214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3473a17922775313131b72e39451ddaa3c412762203024358857068981d82d24. 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/ITC091500215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde8e4fb971ba0fff388f27b6b8cde2365135e24ff175e75f2cba880c6f3781dc. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/ITC091500216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6faf2c2af759004506735a747d667d50d44986efedbefa1c7ce0a5eea1093fd5. 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/ITC091500217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71bbb9059e1bcd6a69e5f50e191aaf7ea0050f53311ed7907232982579acb246. 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/ITC091500218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e1b40f16ccac32a2e798df1aba9d7ec1694898ea4326ce03fd3707c3c360b65. 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/ITC091500219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c133be98aeb0bfa8be05e5e3872b00d32953a535d2eb01b447c1538b7da1e8f. 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/ITC091500221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x037a516bbe819ff290a0a492698c595dc99408d83d45a9cd1fc92b4285400a5d. 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/ITC091500222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06ae2a0ef65951bbdcf858d0411dd247308cedf624d68a73890fe99000437a80. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/ITC091500223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea1458d1010ef224e24a276d214a3a2e25e5bca436d6ac0b8c5017c86666b02b. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/ITC091500225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47cd1af5869ab704a69a43a3dff2fa93242dd23bf00f16a0070b20d248d79792. 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/ITC091500226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf0aa6d3241abd154cf9765a2198bde9793c56bd19ddd08d6bd2d798e6864576. 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/ITC091500227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8050f2db6102c5bdce42ac06c599b69f52c92ca56d52506f39dcdab7f6278eb5. 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/ITC091500229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f5a4e0f6ea85b86848099cdca988dad7817bff4f697b78d43be31e92da13a50. 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/USA2P2442619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0aad95c2c3aa8b4b58a2fd65795fe46690015830fcad06d721560bbfc4294d52. 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/USA2P2442620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32a2c570f8006cd999e3441ba909c7454c862362587b50021de7398bb9d38bda. 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/USA2P2442622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb53dea3b3d3cdf38fa4fcc6b4d436f1126368aadf7efc57f3315f606afe5f383. 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/USA2P2423939.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd939466c074bbc7cf2cce0ebe18d0528f479532153ca6648091e8d56ddbf8eb7. 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/USA2P2361676.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e4cbd07275338d4a69bcff4a1f02d8229a4351289026b7ea89bd45f15c25d79. 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/USA2P2334479.