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 0x2cab2ed339a0aec27ee8b2ea0339978f616f3c25b95f21804599c1d516c82dbc. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/579e7454-ac28-4ac2-bb23-58831e5960c6.json and https://artists.proofprofile.net/proofs/artist/579e7454-ac28-4ac2-bb23-58831e5960c6.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 0x2dfce9852c1851c4e2fec274f210aca63e08dd4c0731509a473904eef8d9f11f. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/FRIDO2112922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78d07398c78b16ae8d9ae5c464bde8ad888b0abd88d23bd220443aebb7d502ab. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T13:34:30Z), 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/FRIDO2112809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02a7e3794ad28ef0dd1480aee31697042efd61c8482c372ec52336c5d1b396a2. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T01:47:44Z), 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/FRIDO2413530.
I See You I Understand / Swallow Me Whole
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fc6f38169eca8fda362a3170f55a736c036b8c6646269a98fb9ec2a8803c43b. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/FRIDO2415040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd6d3b2fbed401e2b6e8b78251b9e3cb0391cfbe9b473bdab1365db798d89f65. 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/FRIDO2415039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fc6f38169eca8fda362a3170f55a736c036b8c6646269a98fb9ec2a8803c43b. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/FRIDO2415040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22113cfa54d01d71b6b4782ee81c46c4b7efd824427c17252f105a44f8b83a56. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-17T00:11:10Z), 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/FRIDO2415042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c23bd0000a0252569d851b25e82026061eec3a455846c1b0a0560ef99f85929. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/FRIDO2415044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ed7cd63cc2fe5059a2e589941bfcebab01e5032c8438b91457c20844173fd15. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/FRIDO2415046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbce4cdc64073edab1cde501748866c999d688379604c57e8f990ed25e9a29d2e. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/FRIDO2415048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52cf0cc0152e4bdd8e40e97827fa23a9b0bcaba317ed668c58096091de71a086. 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/BE5KW2300430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52cf0cc0152e4bdd8e40e97827fa23a9b0bcaba317ed668c58096091de71a086. 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/BE5KW2300430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52cf0cc0152e4bdd8e40e97827fa23a9b0bcaba317ed668c58096091de71a086. 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/BE5KW2300430.