1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 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 0xce9a56e771084b26f89d188a94f932b8c4f18d8474d581e9eeab75907e5bc3cc. 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/b7f20c9f-b86d-4f8d-a2c4-d3c42d9d3f98.json and https://artists.proofprofile.net/proofs/artist/b7f20c9f-b86d-4f8d-a2c4-d3c42d9d3f98.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 → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 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 0x134917368dd3406b781717e441920d53a66aafa590b4fd5d82a624d595370fba. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/ES5152400035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35078f4a06b8b0fb89378b6f07932b7e507a1c179f90eb8f7efb0f8e7361b6b6. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T21:46:44Z), 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/ES5152400095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68bf084df2acbfb3b244751c9c64734c7347f326d11edc1519f0eee8a30e5186. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/ES5152400150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb3f66cc5de0f2c3c34cdc701ae6348ab9b30aa98cbcf054959d79f005c1017a. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/ES5152400215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68bf084df2acbfb3b244751c9c64734c7347f326d11edc1519f0eee8a30e5186. Chain 2 (Bitcoin): anchored in block 956404 (2026-07-17T04:30:14Z), 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/ES5152400150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e5fa2e621ec6aa6e29af06afba9e02ecdb93f96d3164671e4f32e26d53c7048. Chain 2 (Bitcoin): anchored in block 957756 (2026-07-12T21:36:27Z), 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/ES5152400207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05f4a0341b5b5a16c44a62c1561f0257bf87d4dd4ea867db6b0c2b4716421b65. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/ES5152400208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29a8b39c31cbe07e58da8c2e6145b5a27d4257dfea60fa14b4120449cd3aa88c. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/ES5152400209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01c151f45b708567d9eac477a7d284684b9d580862f359ddd07b74a4186f8541. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T08:19:47Z), 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/ES5152400210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x134917368dd3406b781717e441920d53a66aafa590b4fd5d82a624d595370fba. Chain 2 (Bitcoin): anchored in block 957756 (2026-07-12T21:36:27Z), 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/ES5152400035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x112accf08ab3fc1d5017ccc3d1a3e421677a04cbcefbf457db0e5680543f876d. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/ES5152400212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6a5a56f48cf0d3c4c65668b335d7a06ebc3350993b13481364bbf115f43418c. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/ES5152400213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6097d08743da1409730ea897ac294c8546ee81d730adcc546eb4cbc789d2e83e. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T19:18:10Z), 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/ES5152400214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb3f66cc5de0f2c3c34cdc701ae6348ab9b30aa98cbcf054959d79f005c1017a. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-17T03:10:41Z), 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/ES5152400215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6097d08743da1409730ea897ac294c8546ee81d730adcc546eb4cbc789d2e83e. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/ES5152400214.
Lama's Song (La canción del Lama Zopa Rinpoche)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d6d2365daf9b9ec375ea09ac0a10fe5a2429a687ef584b1a85a2aa7106b1740. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/ES5152500318.