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 0x40211044c8619a1ec0c2ddb47b9cb3caddd71adc77abf07604d81240b8f1554e. 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/d6b96512-582e-4d61-86d8-24ee87689174.json and https://artists.proofprofile.net/proofs/artist/d6b96512-582e-4d61-86d8-24ee87689174.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 0x781cd026995cdfffb400dc04f5ff1fdfee887e9f2e88f746e10ba7f81ce745da. Chain 2 (Bitcoin): anchored in block 958422 (2026-07-17T13:35:31Z), 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/FIWMA1500136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7edd2897de11b371f1def55ee89ed36fae01c46629840e6acbf844705fde23b4. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/FIWMA1600159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc45aa742e81bc0c10e2ad39d6932dc0a2097060864ca516abea724f9ce38237b. Chain 2 (Bitcoin): anchored in block 957884 (2026-07-13T16:55:06Z), 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/FIWMA1500001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb549d88065fb0060ace68807dcb3528852d03fbca007c8718351f735ee1b1ed1. Chain 2 (Bitcoin): anchored in block 957884 (2026-07-13T16:55:06Z), 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/FIWMA1600161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7493b6ae86dedfab789716a27451f14cd83f2475e52b348669ec922920bfad5e. 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/FIWMA1700263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47333b82d4601d3fb16af61c4a1a4c6fa21100e0284ab541a95f09a4eb854d59. 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/FIWMA1800024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ad5137d385758c60ff20f87df60dca356ac2d1ca7a838b9ad63c9ce9f769ce2. 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/FIWMA1800274.
Honey (feat. Pyhimys) [Vain elämää kausi 9]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x986e391bdb3a6b96dcd1ecc6c90f278823b94b01b74cb2c23ce064e0c685e498. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/FIWMA2100159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b333f71dcdbe56d506f4dbc186fb380c4c744e9113affb323649d4c7f120418. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/FIKHY2200066.
Oulun kyläst ikuisuuteen (feat. pehmoaino) [Vain elämää kausi 14]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10b04332abce9d9a8dd83416ec2c384d62a96888c9f43d023c06132aad0d6919. 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/GBAHS2200611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10b04332abce9d9a8dd83416ec2c384d62a96888c9f43d023c06132aad0d6919. 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/GBAHS2200611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37e5e473251e8ad300cd5c51d10d9887796e285a53d67f76cc42245bb2ba0a36. 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/FIWMA1600158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b333f71dcdbe56d506f4dbc186fb380c4c744e9113affb323649d4c7f120418. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/FIKHY2200066.
All Small Beasts Should Have Bows in Their Tails
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03ee71fd722b034ae6303c68faadb02b49c7fa231007c6bd54b4cc9e3c9714ae. 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/GBARL1900175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7493b6ae86dedfab789716a27451f14cd83f2475e52b348669ec922920bfad5e. 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/FIWMA1700263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa017a7cbef4277623751517286bb010dc0606f5e9e69188528a3d5e525e2b2f2. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/FIWMA1900183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb549d88065fb0060ace68807dcb3528852d03fbca007c8718351f735ee1b1ed1. 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/FIWMA1600161.