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 0xb14dadc693a5dbd559bbd488aeac0482647ef99446a697aab5832596fda12497. 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/88a14db7-a535-4051-b03c-1ed7257b86a0.json and https://artists.proofprofile.net/proofs/artist/88a14db7-a535-4051-b03c-1ed7257b86a0.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 0xf9fd82b51c040bee1b047deec94be6e80b5e18fa4443c35b5711c97ac16697d0. 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/SGW502250264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd909feb97236d738bc0179abecf711ae3a534efcd3c50952b0f316da38bfed92. 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/SGW502222701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f3030695fa8f3ec0ccaad71d49c10d9168f215d59ad45d456df179f4c0abe87. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/SGW502215879.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc112893de1a120a74c34022b37328acd0e3b16c8bb8df26c4093ada7ba23be1b. 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/SGW502207501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0cc68bc187c3677dcc36ca9d41be449017e815149dd620663a4588dfd3cc61c. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/SGW502264482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66961f6f6a76192df21212cc7e444834a4d297983e3529a064f2a14be7552c57. 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/SGW502215642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac8a8cd260d94517409784fc7ab76ea3ad0ea50ba41f2d9a7685ca507cf6a012. 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/SGW502216440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb498fc74321f48af75b4ca5b27c7ab3f7edee21374f9ff642e51bdc33e43a44. 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/GXBAV2589022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe6d367a67f1cda330bd1a623b68c1df689541f6e9e3e7a5bf8016ab5529fe0e. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/GXD7G2218830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x303243f6bfee9b287482b27f3acf1f191b4bc4c637410436081fcfdd2e0fd42d. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/AEA3A2447004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1a08be789375eb5277a5152814f77b8f42c5a1187ef13d675bfdc538b573a78. 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/GXD7V2464223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef808238ea2b93724bc2c4088dd07bb4370a47c57025afe669f59a21acca7340. 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/GXD7V2378219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17d189f5663fb8d692e6275a6d1453e34c82e3521b64c57bc6c3c4516be6fe51. Chain 2 (Bitcoin): anchored in block 957064 (2026-07-07T16:43:08Z), 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/SGW502355979.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48d026c6e5e11aef41a20aa7510f52103cd08d35893026df562289dacf2e81e0. 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/SGW502354425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x734ac9f62e44fbdc2892994a7e2f36f61a55eebf389f9ccea383f5f804de5b27. 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/SGW502353476.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12490f90541776b5e939cf4ca7b9759b249e57015eb6f446a1ec1cc584c9dd38. 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/SGW502347705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd369f0ed600bb41ad5af25f76f503198c8ba6bbbdebf9b2c8a3ba54f5263ed7. 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/SGW502319852.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1477e8cde3cf0d70794a3baf518270a8e5a83d247fc5f372adc19785e08949c5. 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/SGB502355004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4ae65e73e9a20011140bbf56ccf9012f434e0a1c104f7d99a70e6fdbf13e006. 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/SGB502351198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaf6c11d566922b457900b0471d3e1548fa8d4b3d4e04f8f27bf56c68a5d28de. 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/SGB502346143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc8e95a340a5dd1473b36968ab73d3017160deb7ac74ae3c9d67f9c4a236ff8c. 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/SGB502345848.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48270404637b421b0f9b1342fbe677d74a9fddf689906c1dbe50921ee5c8079e. 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/SGB502306801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dc6a86ddede469dcb0651b11b41939d410a0ba901d7e9f8e55bf5c9e2ce7712. 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/SGB502302948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9f9276e5f33204bd21faadb91d01c5df3c13cbb66eb257265d159ab834b0f42. 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/SGB502272402.