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 0x4ce5b34c6192611b3c8afccc12cb8d8269a70effa7747e06989a5b574ea64fc8. 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/28407c47-ae22-462e-b57e-c0eedbef55a6.json and https://artists.proofprofile.net/proofs/artist/28407c47-ae22-462e-b57e-c0eedbef55a6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Dream: Peaceful Guitar Tribute to Disney
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 0xf30b1f0e16c1c5968ad8d3bd62e40e33d9f25059aac2b3868d390b6a8d90a369. 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/USCEJ2200701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a1304c55ea919d4413daf00cfc4e2675947de893dcce91692e82d84dfae0300. 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/USCEJ2200702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16a07e91027c71fca695bab70ad0a5f302f49a3e92c350579efa55d0e5aa4de2. 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/USCEJ2200703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4e1ed8a90c3add9ed01b9ae0fa06de14dc4d9874c1102a120b3ba61e4ba4c87. 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/USCEJ2200704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8495e33b0bb5f96254a4cc09da6209a9700132d485f7b1aed2faa107cefac50. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USCEJ2200705.
Best of Friends (From "The Fox and The Hound")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70d3901b2acdf495b451a20522837b1b7b11f8ae3c5f7fabbf31a211a0ca234a. 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/USCEJ2200706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc711933cae201f30520b986b987899f44a907bcd46a9281734dd5b2f7b84662f. 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/USCEJ2200707.
One Song (From "Snow White and the Seven Dwarfs")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3de033f764cf402c3f3908879f150f517fe18418842034b84113a9c753807341. 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/USCEJ2200708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfea30a0f722ef741dbabc11814f8614ea54d6eddbde8c261be3e1b595458a4b. 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/USCEJ2100801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde57d017aa1e6e828c2fb4a5dea880b68c5fd9a5918dbcdcec112bd27abe08d2. 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/USCEJ2100802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ee97c21e1db66b96c2838950db5057521d806ccf95daa42111bfe9edf7a580f. 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/USCEJ2100803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec4681d6ac7e9b61cd1b0dbfc5b8470f91080e7962e2766ea2e62626fffafc83. 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/USCEJ2100804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01e464ab76c7371065c6c9a503f07d813cec818d4f293c91982bd0834ab2ff66. 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/USCEJ2100805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17927a15704913f7c3ef9268418187ed4674ae6239f83e6cacab1d9afe7e2724. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USCEJ2100806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4c576ead82c5632c6513f1cb5b26b0d7566b8473db0e80f73d34bb1d4935504. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USCEJ2100807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x080f89523bceb1b95b62ab2ecdaa3b32ceae5cb62ce330a7c26934184e77691e. 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/USCEJ2100808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe0786354f2a187918223c2e9f8fb81626d9006d571ef09c9b28de083bb825ef. 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/USCEJ2100809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0add45b8b5a5a0dabb47b9f542fcf286677c8724c8bfcb9ab1768bf016e210fd. 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/USCEJ2100810.