Robert Alan Krieger (born January 8, 1946) is an American guitarist and founding member of the rock band the Doors. Krieger wrote or co-wrote many of the Doors' songs, including the hits "Light My Fir
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 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 0x2021a6008cb0a63e874be8acef10ba56862e15faf50c4ba9c5fbe127ed40cd2b. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9127af83-d74d-4343-8d66-7a197debfe02.json and https://artists.proofprofile.net/proofs/artist/9127af83-d74d-4343-8d66-7a197debfe02.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 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 0xc68e51fea3fafb9e4d36157e68ad82b53b75cfc11735fe77a4015dd64677e1ce. Chain 2 (Bitcoin): anchored in block 958695 (2026-07-19T07:37:00Z), 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/QM6XS1703495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03fcbca17f2a068359e4ca3f5f4d098b5e1dda30b74d49c870f091602df4f30e. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T15:07:00Z), 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/NLB932400301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2895d2d97d061891845eb24ad06a7dd240c7ff8967080158b4398a091b3e9f3. Chain 2 (Bitcoin): anchored in block 958121 (2026-07-15T08:02:12Z), 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/NLB932400302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf509ab329dd3e3bd4c8ccf83bed2acbfc545e8b16f9626776abdd6ffd29de5f5. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/NLB932400303.
Five to One / Break on Through (To the Other Side)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfec19d69a2491b06a65eac5955db9cf656998bc861d8db56be9964527e7f5b6c. 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/USUG11500816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f5ab7f3d4d15c80b068563cc54b47f9ae28074e4bdc4dd412bcc4ecbc73893b. 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/USUG11500817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc20ca6f0a257d7a37b59b5dc96159f2801709f4fce3585a01faf2f47fac28973. 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/USA560715701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae00595a48fe31045a352b184a07bdb9945ff739c69be90fb3fc8a08c177c639. Chain 2 (Bitcoin): anchored in block 960157 (2026-07-29T22:12:10Z), 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/USA560715711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa45c641347114a191649f2ecda85900dba32e71d2e4f0c5e0d481b5cad1fd86d. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/USA560808913.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5080bdd6b2372e0f6889e9461cb48cbcc75b574f5b72625a4d9c507af573cc7c. 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/QM6XS2302116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42893f8c33fcb2896d3f012d3017ea8cbed41cec5bd790243cd3cd501b32163e. 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/QM4TW2405458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9110adba9a38341390bd5bc57e27df355fbe61eba4362318245be287dd1592a0. 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/QMFME2333547.