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 0xf6008d942f0e50bc0bc8acbe0a35f85e3311773f4c4c38dd24884dac5d7caf9c. 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/5915e47a-49c5-43fb-a0d5-599a18c09eb4.json and https://artists.proofprofile.net/proofs/artist/5915e47a-49c5-43fb-a0d5-599a18c09eb4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Videos im Kopf (Sido "Bilder im Kopf" Parodie)
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 0x84eaed5ab94571a5d9696d85d6fc16b501c58a7c7429e8d5ceddb84e0bf36b60. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/DECC61300050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd6f05d073c12f6182b44b2a6ff96f642ba4fd5fcce57049fb52570ca946729f. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T04:35:37Z), 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/DECC61300063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf11da5167c1abed8fd67c0ec85e983824b91eb1f9b8c27cc49f94cb5f8503ecb. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/DECC61400004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cd84becd09df6ddd2d29f2cb4703a462deb641cd772b1368e23dc6bf8fa5669. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/DECC61400010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59cee23e605c55266425002d3b4801bddac78c20d3e0727bb2e94a3341d7b9f4. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/DECC61400011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a1fcf7d37c208ed32053639a4878ded23e2fd996ce7e18860d411aba8d59753. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/DECC61400014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31b43bea1b12e4b1de937d704b06f66d7ddea4507f50e0ec2205b3c2400e852c. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/DECC61400015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83806b48b15ee1f4b9878124fd132960c8ec502a773e5518478bcbabd433dc58. 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/DECC61400110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bf4300d6a47ef4baa50b61274a07890e0614ddf4278f892ab302cc318109e15. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T04:29:18Z), 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/FRX201650118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bf4300d6a47ef4baa50b61274a07890e0614ddf4278f892ab302cc318109e15. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/FRX201650118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff93a79dc7305c5f3e19333f0118ce181f354a55d1a0a2058dca5d47a87e8835. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T03:39:06Z), 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/FRX201650121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3821f9ea04f3e4759bd6c79c8fa55f861d1bb441efb8c464420f1b9f1173a57. 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/FRX201650127.