Maarit is a Finnish female given name equivalent to Margaret. It may refer to: Maarit Hurmerinta (born 1953), Finnish singer known by her mononym Maarit Maarit Lalli (born 1964), Finnish film directo
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 0xc33b272feaacbd8c9142b089fc7d706215c9a30acdb1e58c15004244142f83a6. 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/034d7b3f-0cbf-4996-87c4-83b41726f989.json and https://artists.proofprofile.net/proofs/artist/034d7b3f-0cbf-4996-87c4-83b41726f989.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 0x6b371ebbc570d4613bb0862267868621b0946109f1b8b56f4d13d85776120e05. 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/FISBA7300226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10972563d6fa0cccf7e9cc60b98d42388c3ebef6abeead8582b0baa1adb0f5af. Chain 2 (Bitcoin): anchored in block 958051 (2026-07-14T19:14:42Z), 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/FISBA7300232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e3ef49ff5693666512755c6ef982c6336284249e8966f0fea456d993adb7f3b. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/FIFMF7800004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2ff43fef9363ca0fd7506818a1a8988a698fd2e479e1e3644e106f9669d6e42. Chain 2 (Bitcoin): anchored in block 957539 (2026-07-11T08:09:42Z), 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/FIFMF8000008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf28dbf09c5776936a7c6f969715d30d8fcc112db457c3bc042127a88696ca286. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), 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/FIFMF9800017.
(MM) Laakson liljasta metsän tyttöön - Kaikki parhaat
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x397068ef73db70969211ce4dcffaf52fdec8455cb4bf230417f621ffb2bade7b. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/FIWMA1300624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x099947f3cbe219fe418d0ceb1db254e18b5c343cdb1a25509b06ac0e6eacdc7d. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T15:48:23Z), 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/FIBAR1800286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72bffead8ecf0d3668d5dbf4cf9bb2a87147ceb5d425913a42bd210bd8a97bfb. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/FIBAR1800135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87e8a5e279eb2ceb17b9acf3ff9b3b2b7c082b21e39008ca2700f4ed8dad0150. 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/FIBAR1800287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x565729f6d2dfadb8c4ac0093c62c15256102274fd0c911650427627a10c58e68. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/FIBAR1800288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3abe53897418e706564db0386b09969301c253eb8674647ecf1f6dc4f014c2f9. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/FIBAR1800289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91b7782e3468ac93e905cab6db017bf5bbcc4f04aa0af4bc0f1236b2afdc6509. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T19:27:18Z), 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/FIBAR1800136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8aa93e87d47ef0e473406a8b55bebbc2edb940190e6865a5bb45de313bea67f1. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/FIBAR1800290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bd5d24dc873c977a81eebb682d5d716d012a8f4b9edb7a04711774097309bb5. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/FIBAR1800291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb752434765aa40011c0d06934c347adfea485cc12106bf53cac4c631d1ffb7c. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/FIBAR1800292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10eeb932c9e4e8f368a3729753c6444afd0b252b423ef27ad1c46de08073196c. Chain 2 (Bitcoin): anchored in block 958538 (2026-07-18T10:30:13Z), 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/FIBAR1800293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8391029c5701b2e283ea8d4eb9cd3249ca1d231b815e5b1a5e07a785b8837e7e. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/FIFMF9300401.
70-luku - Suurten hittien vuosikymmen 40 suosikkia 3
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52b4a7b5ae3608ad463ab5c8d53c8249b5450a052b63232f4550a503d1b6223d. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/FISBA7300229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e3ef49ff5693666512755c6ef982c6336284249e8966f0fea456d993adb7f3b. 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/FIFMF7800004.
Suuret suomalaiset suosikki-iskelmät 1969-2004
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf79b2f98a7eae0fbf7e00df06bf0bcc40efb6b4e8698519c4cf4c044090b4107. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/FIFMF7800001.