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 0xe32e6306a1b532c6941d6fa2981c02e20d27c5d606edf1f58f11e46dfc77e934. 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/61ab59b9-5b86-4379-a2a4-35ce8e8183d3.json and https://artists.proofprofile.net/proofs/artist/61ab59b9-5b86-4379-a2a4-35ce8e8183d3.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 0x43c0a53cdf4198d2b5016e5cebf7faee0cfd57fb37b41b1b254b5f7920ed46a4. 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/PLC062417666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc1f77289d9a212be0baa6d646e392e4508fb9094ec9af937e4fbe3681dbffe1. 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/PLC062411668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x866d928b9de596a527c782b99a4529291edebbadff67b99546c311573b63d0ed. 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/PLC062411747.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f3f26494d10d74c1c6c81f1710e9cc61979a4e3a8576d196f77280b8e6074ec. 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/PLC062417668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa394417d2a0c2811e0d18af646bb05d2e3bd4cc49ed4622b9625dfd9dda39f42. 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/PLC062417669.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45b145ea1257e5bed442082040801c374ae1954122a5ccdcdf6b7fd60d14b142. 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/PLC062417670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x866d928b9de596a527c782b99a4529291edebbadff67b99546c311573b63d0ed. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/PLC062411747.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc1f77289d9a212be0baa6d646e392e4508fb9094ec9af937e4fbe3681dbffe1. 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/PLC062411668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa21d25870bea0dff16bf5f25c278fe2974a7d625b5b73e1626672f3edcc3dee. 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/PLC062408522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00762410f0adc2e79b91594335ad6998ab56fb01cf451edf493a50100a1f2bc3. 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/PLC062408063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bbd7668e0c1c8e439352ff1c8c19fc6c9b398afcfe6567ffe4569ed982af7f2. 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/PLC062396400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a296b3088bea1eeb1a4bb8346194e4acb63671b022f71aa8ed5004210d1558a. 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/PLC062396321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94d2d857db6ad216306917b6c884466b240320ac9116b2906051d625ede40e49. Chain 2 (Bitcoin): anchored in block 957055 (2026-07-07T15:12:44Z), 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/PLF242210983.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabada160506a4e897914b0fc716f20c27c5e08c84ce27f45aa70d61dea67b8cd. 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/PL2DY2302052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x807a62dec5fe47ebc0146aa7cb65d7ffe0989f93d0c4b749859778360837e43e. 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/PLF242210647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f6847115f2dc0348f8f3b63af18cbddcb481b3dbd9dee5f8b442e398d1d3394. 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/PLC062366897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c6e1c57240f7ec267991f1f8765b17c87d555c6216a188cdf92b9e9954dbc88. 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/PLF242210501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x023b298e718bd5d63bd3ed0f45ceb39d8d9c248b9cdf1e8bf9cc118cae3e7ed7. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/PLF242210513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa625fcb0f22618509044ce624e072fa81314b07ed2209b6d444bfa901fd70dd5. 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/PLF242210512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3f23d19b37f649eea6badce9a71dc24abdfa6a07ccc90367d6eaa3ef3fc9fcd. 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/PLI362581771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c6e1c57240f7ec267991f1f8765b17c87d555c6216a188cdf92b9e9954dbc88. 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/PLF242210501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30c7e9abd4cab8fb9e15e8372807e773cd7133f5e10e60a4afbfe09b090630db. 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/PLF242210409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x118c7f7145d419e74af3d87d43a955d4564826e6c6b7c12ba1b2c1f6e9c1f6be. 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/PLR862200540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3251392ff3d783c6d9c65cea700c0ccd15a1fdac0a1fea78f62ac4d47ffed379. 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/PLR862200325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59e81102b4509fbfc13e68f709b5d5b7f7ae8fe001fa54f4edd4e46fdc1c1b07. 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/PLR862200204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d2f6c7ad0f05dcad81447bc78aac971deb50790d2766995d6bfbe16b8279733. 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/PLR862200158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdad682b68dad8e135f7db3edc65e181588f823276d5ee9fa6903dce2655ec8d. 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/PLR862200108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ac6331ab7a0c62b0a1d135562a18683b7d5babd1e10fcdeb2315735e73eff75. 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/QZNWR2185313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d494b20d45838a9f26bfbc20a86b4105c6f6fe68833928c90aad612b6144972. 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/QZK6J2119651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e93aea165f561a496c7c92193a7ba50f8d29f473c79a8e4521e49494c8f36ae. 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/QZK6N2176895.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ee2865cd53a8b5141d281aa51e3cac70ecc13aacc11e66b8b870ba7c7038560. 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/QZHNB2164364.