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 0xc5f601d8acdcfa1085709faf82c627debd60b4cc723d5b2f234d242c1cb1cd89. 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/ffc5ef40-4367-4f5a-9051-bcd7a81460a3.json and https://artists.proofprofile.net/proofs/artist/ffc5ef40-4367-4f5a-9051-bcd7a81460a3.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 0x2c22b575dd3cb9b1917b71983a70bd738631bef2e3980e7adfad310cd16044bb. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/QZHNA2110262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b9d55387b055cdad317d8135d48f8575bef95f3a02ab17fc412e4c8f54bfb6c. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/QZES62210635.
راب عشيره الاوتشيها دكتاتوري وهيروز قروب
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fc6708f8152dfec0de37874a7eb0014cd7a180672a13a2120f0fef3250e025b. Chain 2 (Bitcoin): anchored in block 958091 (2026-07-15T03:17:03Z), 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/QZMEN2262804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11f3b1f4dcf1246ecd786a271826dd3774dcdf608efe3bdc183d61003e4d981b. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QZTAZ2252765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65126fd7064b612ab9d5989a3cf089bdd1a34367310da049782a7bf0113a0a77. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QZFZ32306847.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf23207a1f2cd2902d4514dbeff0c7298e775a488d6b6b0c6fdeb15f9e1744ad5. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:18:47Z), 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/QZFYX2456104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dbec23f999631dd725576f09f1ee28eacf4495177b5bc15d92dfe2789567dab. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/QZWFL2449458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12ee9211bf0eb1a3c54ab0cbd16e7f51112a2ee4a70a673444d783e1f03f3a9f. 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/QZK6F2522939.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfccdd6b3b505bec459706ce1ae4a10956b7d7027c5682f55dce2666dc8ef4015. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/QZNWV2546903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b3aaec20a12e84234aa9957393cebec1db541548b8fee25abefc1090adb342e. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZNWV2548668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4ee9cd7539356394b9197a7cfdf2c9fc081838ae146474d9887d9e79fdf82d2. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/QZTB52545969.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bdee30c42fba20560a4c99ab905330081d99de763a922c6bab7228be1ec2216. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/QZZ7M2572370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69931d6f1843feed57a35fe443bb9b4bddea4efa644ec6c48ce6c63c1014940e. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T09:50:44Z), 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/QZZ7N2502651.