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 0x920c805fad889b06fe2bb6e406c2c82ff2a0c556913731dd8d69f167a89919a9. Chain 2 (Bitcoin): anchored in block 953697 (2026-06-14T21:49:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5ab747e1-2886-42dc-9581-6598227c9107.json and https://artists.proofprofile.net/proofs/artist/5ab747e1-2886-42dc-9581-6598227c9107.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 0x8887e3203de10f26d6b77afae6451da7adb270a2f66b6877b985a12e2af05b31. 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/GBMJG2215648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07e0d306c771f84aa1c635c62014e65c3ef07b2ba02873001329579d0110be39. 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/GBMJG2215651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f7b06de4e505b2d9f88eea94fda18e839d0dcb2355b4cb1f5c5b56a22198890. 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/GBMJG2215652.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc0ab428783d3db823488bd67c727167c708c83c6f8ee98e903460e68319e7c2. 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/GBMJG2215653.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ab745472b5e291bdbe8376f2be3bd0cdf771eb26f91cc79dccac258c2031ce9. 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/GBMJG2215656.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf441337838b85e48b1b01ea3e9d303ba00f5295b03df0af45a0ed644080cb1a. 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/GBMJG2215657.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d3d1fe30ad9050368d836f69a648a3386fdfd6b7ced639e87ee5f141c200aa8. 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/GBMJG2215659.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd0da6446af8b0e0130a34c906f4e586e51e8bb8c4015b427188baee7de37c54. 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/GBMJG2215660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a569138616c7b77c8414c1a7122c4924c41ac9ebdd43b6bd2461ec7e936401b. 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/GBMJG2215666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76ba051e701aabcbfaa3a8be485455f6b2b80b61b800ecc259b025c747ecc257. 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/GBMJG2215668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x850340bab92608756bbc372a853a0438457600db970ebab65f5caf67667ca62c. 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/GBMJG2215670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb29358f4ee4885b653500f8e87a6d10527ed39d07379996af277eebb2220c4e. 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/GBMJG2215674.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1aea75a82e160d27ab5b42aa03cb01fbdd21150287f830e9ab0586433d3eb6f. 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/GBMJG2215675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57645228d05776d82f17d565d7654609daebb16d1fdfd7064666f3f77d7dc800. 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/GBMJG2215716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef57ce7cf4c12ac3810c8c8435df5143b54672c76665443985dcbf20795cc34e. 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/GBMJG2215723.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95633db35f549f40a207104096dc1da95eb2f06735fe3b321f5ff60383df6d74. 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/GBMJG2222914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7e32473023bd24e50b5f454ca91dcb860ea22c4e2fc4220ccd74ec5fa5293ec. 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/GBMJG2222915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf00720345b9f651e27b4f5b41163710cb152f02aa4ced26b6f3c87f38f75c7b1. 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/GBMJG2222916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f960a6743ff32e5e825f6c2854dce922a74ff134edfb3ef111e83782436c5d7. 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/GBMJG2222917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d78b494ee12ac5e6623324f481084c373519daaad34f2def079751cea3c46cd. 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/GBMJG2222918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa768cf094b9ff2365bdd1146983f09981de71921d72299b404e82e5d83921bce. 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/GBMJG2222920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaa337aee4be08eb28cc9f1d4071d965a182195359e40d541b8c203b3619f63c. 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/GBMJG2222924.