Karis (; ) is a town and former municipality in Finland. On January 1, 2009, it was consolidated with Ekenäs and Pohja to form the new municipality of Raseborg (). It is located in the Finnish provi
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 0x91b5047c2c9aa71fb3ffc34c25ac52f0b26bd3c7ef82da29d019d6dd4097c7ba. 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/53daa1ac-d51f-416e-a12d-7849d585f664.json and https://artists.proofprofile.net/proofs/artist/53daa1ac-d51f-416e-a12d-7849d585f664.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 0x518c3c3ce62dddddd23a4223229aaf5f6d7179de7eee1c7574526e4bb946f715. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/QZHNA1922261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bc11726655994510f78c6b6b7087f4b34d5b32fb86b6e92949eb9787de16608. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/QZHNA1922262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x860298d14f9471617d26ad06e8c1b47e62ea2fdd104e54eb51534a8eea79d271. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T21:09:36Z), 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/QZHNA1922265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf85460dc4ebebe2c8f5ac399bf909f93c24dae6350bab8bf4b6aac9549f58916. 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/QZHN42095994.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0389d69ce80c0c147e38b5985be1a1f2800618e5f8259303080b95b06749b548. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/QZHN42095997.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c1c8491a4745d357eb298be6fa91e1ef86199cc83d174189841ab88c2a9a9cd. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/QZES92045238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3f3dab09d46a0dd15c55dad12f8a9f80da90aceb1ca4846ac10a2ff797ca937. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/QZES92045239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb02fb1ed850c97e1f2f2015997e8439b6a3e48c2117a7888a143983a80d36b76. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/QZES92045241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa04159e9f0f8eae3ad83199793d4ff63695e2f8fa945a548ae9e653dbea8390f. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZHN41933333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabd136b82085a18715b559415b8953d598bc6635d440bd2f81837c77cdd776e7. Chain 2 (Bitcoin): anchored in block 958987 (2026-07-21T09:04:56Z), 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/QZHN41933335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08934fb5ad216bf57270d81ae2d31e5fe1dc91a6a206b80f0192345179b7079d. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T16:15:11Z), 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/QZHN41933336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33618d9e6d4a908ab439d41067dd0df00f9d331b2230271f2d38f0c58879991e. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/QZHN41933340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef6966a2276e2dbb5702b495c60085ffa5e4cfd35bc8ce5db89b7d7c91f91d8c. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/USASN1500732.
Alebanta Lola (feat. Barreto y Su Plena, Marileyda & Luisito Carrion)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e695bb4effa94a4f3323852f207b7ffa4ddcb57bde05017759e856ebbf350b1. 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/USASN1600409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dfe7ded1209b8b67573df7705a904f3eba073c72118ab96956218279d93ff5a. Chain 2 (Bitcoin): anchored in block 958355 (2026-07-17T03:11:50Z), 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/USASN1900169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fc9f4c4da9fcf4606936b029cf85929f164ad8de780e477631d63de07d1ee75. 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/USASN1900173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7a1706d8113a539de52a46647c23e51a856c1277fb46e4da4c8352477f81351. 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/USASN1900174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe47b253b3bd8c6ad83f6872d6b6f68ecc2f0ece57a5e71204bd4df2cdf25376e. 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/QZK6P2279700.