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 0x561bfee6edf29ea5cd08230d463eb28294d438b5e40d6f933c8f2f7cabd2b006. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ff5c3b66-5374-48c0-aba1-0bbc5cf5ea31.json and https://artists.proofprofile.net/proofs/artist/ff5c3b66-5374-48c0-aba1-0bbc5cf5ea31.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 0x5dd823c54f3577a03cd14f1832e13b8fe2805ba56aff78e444f219571705d77d. 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/ITH641936354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10c44c572215e0182e26c0fb05dccd93c17bf17c40cda3f68ad31a76d4bbe3b8. 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/ITH641936358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6003003747e92ea89bb0e4132341871645759c5ee45fa69bbcfc01ba9d7b54e. 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/ITH641936360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4dd2c9bf252471d92cfd9b0e178a84f7cdb78ee8157967d79b061bf8edf0179. 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/FR59R1984178.
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2238ab39f330c4dc27c85e26974309f462b7ce2447895488291f2ef4734b1a0e. 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/FR59R1984179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5063779bbed89deece36062b6c9c1a20cb94eb3b4087ebed5c8cdf085bf98d1a. 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/FR59R1984180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa11b70816473a6816bc343556631f8b819d1cc6d76291854c1c7bafd18b46f1d. 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/ITFGO2300127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf9c13383d6f1bbca09f22270331189b67f0b43235b9efa186270e9226a5fa06. 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/GBKQU2089559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4427bac573ca99d32ccd4b8f33659ff38f1009ce228ca9061dada3cd8f33d378. 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/GBKQU2075641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18078c92972856102e762a356640364d2043ff598cd00887213f41a6ec29d3fb. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/ITG5T2000001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe344cdb4ed643be68e958869bc59188d4b1e3f1d0981c943e47101f2a8004039. 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/ITG5T2000004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde5316054814afc664d16ae94e751e107d821ee00ad1a8cdfbc6f64a2d5b3b5e. 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/NLF712105678.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa11b70816473a6816bc343556631f8b819d1cc6d76291854c1c7bafd18b46f1d. 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/ITFGO2300127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa930a53d431a3733bbe396b22424e4ae4c16954fc3b5e6cb58c50107cc925280. 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/US83Z2322409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7942906ae0badc06ee497285eb81a29ae1d364061b56e59b610ad735cd0436c8. 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/GBLV62215079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fa57ff30f4007ef27a512d4c63500702b682b5d65f56cbbbc5c5e76f5f93bd1. 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/GBLV62215080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef1b9da50b33501331150e213e4b1500240dbb4f212f8f7c2cd9b24ffb06c4bc. 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/GBLV62215082.
Morning Odyssey - Julian Wassermann Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f56559976c11c1c6d600b80789e10b9142d6732a822c989ac1e0f7e8b94b585. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), 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/GBKQU2089560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb15554f1d7092d2d9d74873b2ff5af016ab5b97f799196013cc5b2231d054662. Chain 2 (Bitcoin): anchored in block 960183 (2026-07-30T01:10:20Z), 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/ITZW52400014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x687b348db60c20af887f05d745b0140cb436bc7e2da9265c089113bd6a2b20c4. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/ITZW52400015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb27fc657d6251bd66dc5881443d3a437d3ff6172fb163a54172d33da3cdc26b2. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/US83Z2322408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe113007d5855f7c2b40ed791f136c212e7a81ef549186296d34987ed136ccbc0. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/GBLV62215081.