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 0x73a4455836616d8c3e8fb9bbbdb1d0e14b6fe13e5e030f8ea6165473e82752c2. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6e33b471-5329-41de-995a-4daa1a2cf3c4.json and https://artists.proofprofile.net/proofs/artist/6e33b471-5329-41de-995a-4daa1a2cf3c4.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 0xab572a5e7f5f9af685c1dbbac3b212ff5b379f249c1f1e3a0b9571c3d61df936. 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/TR0331108221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5800dcaf3adc7b5a21288ba5b23f1473968f47a3bcd9ab133fb9984951ea6709. 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/TR0331108237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1662848ae3beab8a0357df939569514bd48831378aa899bfef9118e37ae01a9. 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/TR0331108222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7009a50c453e436ffc066029f0876fd90972d4da59904ac1a2aa51c9287617d. 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/TR0331108224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b038577aa8a21bed3f87fb41a94927f7b4d619a72da47e5068fea057f06bbf4. 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/TR0331108227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee6088005a07a18c37ad21b635c80b45fbbea82c2f47e931b0cb874533e244b9. 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/TR0331108230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe97cb77a2884e852b93d064f028b489f1778b145f4cf8840bac74a3485d9d8a. 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/TR0331108236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa13cacf1b0fea14de1c0ff8b242677c4b0974f0a45d133f4374f4eab18b6750c. 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/TR0331108225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6db39383f9d2ebb02d1495728e93a1221a6ffacedf1c160ede76a36493979a11. 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/TR0331108231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc360945b1d2e5dc7230d18f89ce1c8a8ba7cf9b42a2a775d67334eb36bab39f1. 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/TR0331108226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f10f1faa909e0365630a596d9c426d3e7964223c3a0eccc161437f790f72c3a. 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/TR0331108235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47682e04279379b8373a6e51905f39b69f32edbf24e32695d7a4b8c598ec40cb. 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/TR0331108238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe961dd4e88607402e7fd32f94121215df0fb2e97dfcede4088c47e88d6026827. 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/TR6791600398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f272bd3d0a41b5cbfcd9c83cffb8966ecfa8bc8f40c10e11c4a4dfb07d17385. 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/TR6791600405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8221bc6186b0b6e0f130ef22808d9d7130a0f1b111d31342849d5200ae4756df. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/TR6791600406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x136b5a9d5a10c9049eaa2b734b00d7d6f85d5bcd3524e88c496d638f588013e2. 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/TR6791600403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x303ccf949d9f00331184d088d912c7f9c0065ab184b252075e9519909098f816. 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/TR6791600400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98334d664c08d189b0ece77d9f0249a359f88e48e3f2804b31f9d13f960cf2cd. 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/TR6791600401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5052997a672172a89a3db20574b568bfed8cefff07461ef7bf1284c0278af6e4. 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/TR0361000653.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8acec2954c4faa1dadb347e44404621d9e37369368a40f1870d4252bb3728899. 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/TR0361000654.