Sami Yaffa (born Sami Lauri Takamäki; 4 September 1963) is a Finnish bass guitarist best known for his work in New York Dolls, Joan Jett & the Blackhearts, Pelle Miljoona Oy, Michael Monroe's bands, a
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 0x4a11ac42912c5c067e3441e7a993a9b6271ea40e9064d8f7519c7a5c4c5f7299. Chain 2 (Bitcoin): anchored in block 954032 (2026-06-17T01:59:41Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3ba54bfa-251b-432c-a4ea-13cf0e262c82.json and https://artists.proofprofile.net/proofs/artist/3ba54bfa-251b-432c-a4ea-13cf0e262c82.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 0xe7b5c262f2d4e40d160add78caade76581b9a7a47359b347877ee3511d9e953a. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/TCACE1510423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44a52743e5a1a8aab5f83ac0541dfe41cd384318a9fdc514f274ea1244966b00. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/TCACE1510432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ffbaceac24a1dce479d08af422ffc5ce9eb6245ac3926900be97f52338b0726. 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/TCACE1510435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2123a992fcfa35e7aad0fda1a972c8207a8ef52444c9a28e17e860f8771a7e2b. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/TCACE1510438.
Satans Helpers, Warlazer Eyes & The Money Pig Circus
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaa25039f011af0c050fdbe3d443daeb338dbe2682378b67d5593a587fa5b3dc. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/FIV2H2400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6572703df270573d6e89ddb0baccac3a34b125e2245b29b10b9c46788bc215bb. 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/FIV2H2400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8250c21fad35c8e6324f4f8ab08f85bcbeaf9fa0946b2ee06387577b85c65ba9. 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/FIV2H2400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf38ceb9f83a8afa72cd0160bb25f7f35bec6a0b7be007a4dc1c47f5c9ebf09c1. 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/FIV2H2400004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe949af3c7d1964b5abc5789c12b9432b400e49ababdb4235d0c5d9b9042b7489. 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/FIV2H2400006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x001591565403fb2a03552a6240b7d3b3be28e92b71b1b9e408399128ba33a7b8. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/FIV2H2400007.
The Innermost Journey To Your Outermost Mind
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x865b378e2654c15ae57842244d146f9e783450a3ae9d9a809175ca95d4d0091d. 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/GBHLW2102241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89d1414fc948114894d5f113897ccd9590850aa63bdfe8ab64cf76e14f4526a6. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/GBHLW2102243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2afea2c92d5d5a05feaf63b3e6f8e9ec8b056d2457d3e69d7d5e183036c3bcc3. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/GBHLW2102247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02669188ef521845cbc50209bfb4f64e319126a718219458d278c1c441ee4830. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), 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/FIV2H2100014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x019f97e31755cf2b89652c3e4cf935739b78a540a7fd9a407c17e0471d5c7441. 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/FIGGC2300003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9656ba815d9087b2814770bf28672e616097a260fa5a245d7337d7355f23404. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/FIGGC2300004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff7a9dcede1747d2d686e2f755a847f860fa45eb149fbaf9a5d1f419ed50cfec. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/FIGGC2300010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc4d67f0a354170595d0f0c179635eb059bdaa21318cf822d1d87f0da5bd3d22. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/FIGGC2300012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf83bdd8c5acaceb863ac3546e22ea95cded315a100772823a2f704afeaa595e5. 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/FITH12300028.