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 0x882ad21937c87adcd56fbffa47f1ccf8c196b91be17a3bb586e4092cf9b7ea4d. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5a46578b-7d36-4c92-bccc-ad4068d2cf17.json and https://artists.proofprofile.net/proofs/artist/5a46578b-7d36-4c92-bccc-ad4068d2cf17.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 0xbb70224b7953d33dcd5e88cba3de3216e7458bbd1f8d45a1db801baf06b12b8e. 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/FIFSC6101200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccedf885537f7b3de4d07a5064ec7632035e34481ae0bc319a440c5e70b9fa62. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/FIWMA0700933.
Elvis Suomeksi - 250 ikimuistoista laulua
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc306fddc4bdf675e9b277f16ff2d0cb8822ec7f4045a9d0c93aa452be13bad2f. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/FIFMF1241470.
Elvis Suomeksi - 100 ikimuistoista laulua
20 Suosikkia / Kun Rock'n Roll tuli Suomeen 1 / Anna pois
Finnish Graffiti - Suomalaisen rockin historiaa Vol 3
Elvis Suomeksi - 30 ikimuistoista laulua
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf5922a5df5c205437d659d7b62804447ea03d6c456f942083f81fe643264605. 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/FIFMF6500008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1dec7735dae73f3481f1c5c37477c432d43c72ff9aad0dbf30bef07206fd33a. 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/FIFSC6500400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3474dde8d2e2b46631afbc7e45206e3b903677d7dc44c09607ba5a74905e931a. 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/FIFSC6100013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7c5318a86a908d5cfe8c111127a6fb1b1db00a66c84f970971a0119080d8cc8. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/FIFSC6102200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbb866fe879b6db2efa9bad4ba1669e42120aa9b4b2e7971ad38638e968a5e77. Chain 2 (Bitcoin): anchored in block 957020 (2026-07-07T09:18:01Z), 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/FIFSC6200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcedb4c2e11bee82804e3ff230c371fabab1b3c3db3b0070cb7b00d6bf3a12277. 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/FIFMF6200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8829a3c5d116e3be415a1fe8bbd5a8ab7abfbe72534a8f78aeb1059914b27c2e. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/FIFMF6400700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5f57e4964de02764350bd04868c8cd2572f15e7234cf9170bbbbe0a390ecb5c. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/FIWMA0700962.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b98fa5977ef28b455c49757da6e79ef29116180afcd8937dda6eaae5abaf687. Chain 2 (Bitcoin): anchored in block 960383 (2026-07-31T09:50:37Z), 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/FIFMF6400030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cdb4938f79580979946ed2866cf78f95f5647da9d6a08a97ca22b0dd682dbef. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/FIWMA1000676.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x512d08a0e21f6fdd51c439f61c941c34ae79aad4f7e00832b7ee96e750240ebf. 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/FIFMF6300006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17d28a84be4e6c0e2f172a1328c0e147e43322277288877b1ea0204a73f35e70. 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/FIFSC6300032.
Se jokin sinulla on - You've Got What I Like
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb57d0a0c626068be14fccec8a5b96b8d621dd52e9f9849ba921345f46ff7b646. 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/FIFPS6401000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17f51e3ef5bdcf660bcfcaf53270a7a0df7cd6959e108bb04e4e265b3793cdbc. 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/FIFMF6501100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d48e060f4a58214669d636afffe0aa80f81fbd5ea86f3ce36db0f046117cde2. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/FIFDP6602200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa884a9c364c531d1ec9b62f624f1d628eaa076501353bc6c315e9f2f456778f4. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/FIFSC6701100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x667c908ddc75515d81dc49d02fd2b256538766316614062fb6f8fe9b9928aaee. 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/FIFMF6300052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1352bf13c0a689dc2f615934a405d7bb0fd858f2f3309ff6ca2a492165f70dfa. 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/FIFMF6500056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf894774b7a95bac489e889119c3286c92d035d20bb59351ec523bb72de9cc7ee. 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/FIWMA0700944.
Jazziskelmän kultaiset vuodet 1956-1963 Vol 17
Musiikin tähtihetkiä 14 - Rokkia ja rautalankaa - Kun Rock'n Roll tuli Suomeen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86a4ca3764b78710a3e0f5b53f9131cb5ea7cccdbda07487946ba4d82d2bc54a. Chain 2 (Bitcoin): anchored in block 960288 (2026-07-30T17:41:38Z), 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/FIWMA0700960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x581a8e8b5fb382253b894e5f27e35c79ba0fb0934b0f449f2429640f96bef7e9. 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/FIFMF7700105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaa16674ff1846158308430526b0577edcec605b0eae564d33599c66ec15f9b4. 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/FIFMF6100050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae9f41c8bd3196e1d1e20392a7d8e4a11c9756045ab6681053840a87aec6aff8. 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/FIFMF6000067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9bb0500bd6bd7810997373ea2845b5873182e4480d8355bf8f8508d186fb04d. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/FIFMF6100053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03e0057dfaf04ae2cc8a07ac3693444cacb3ed72f070dedc2736de3d62b712f9. 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/FIFMF1242485.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0bf4a6ddcc72bd21da3c81dcbef3d9f30c2c8c1d12c16cc4ec0cbb95f503b1c. Chain 2 (Bitcoin): anchored in block 960513 (2026-08-01T04:52:22Z), 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/FIWMA0400729.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd624e0b7c2cfd62dd09a864cb220d8b8a557d4ee9d0d1b980482cd5470ea8e12. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/FIFMF1234010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8584aba7c1f0e01d88443b8483e7be56244e7808a5e67288e4b4652a028b7093. 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/FIFMF1238771.
Toivo Kärki - Ensilevytyksiä 100 v juhlakokoelma 18