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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3abeabe90c4ad8ddf19b4353a1f721bd453ad4c69bb8632af67b01c0c8a35d91. Chain 2 (Bitcoin): anchored in block 953689 (2026-06-14T20:27:17Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6a90b17a-ada6-42d2-bb96-3b9fb26ca3c5.json and https://artists.proofprofile.net/proofs/artist/6a90b17a-ada6-42d2-bb96-3b9fb26ca3c5.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50252329d1452ffeba17da51b70610933d1eeda8516609635d8b56275148d1d4. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/FITWP0500100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5255ac5e737cc3694502f0dc8ac31c96f8c2ebf2db91203f54bc6456ed61531. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/FITWP0200123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72bfa6948a325ac735e30fc8108475ff4a6cc11bc9978dd2c10a8d48ada06a82. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/FIMTY9600107.
20 Suosikkia / Iskelmäsuosikit / Hento kuiskaus
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb15c7ff221a3d95877644f380d4a22436a2713b2bd2c581dfe6213e30e9afef. 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/FIWMA0200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7549de32167fe7e86b11fdeabb8124c558c9c7697e43a544a7eb451002a4102b. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/FIWMA0400420.
Suuret suomalaiset suosikki-iskelmät 1969-2004
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c3acce642503a325bc80cf95602d7f3c6cf55a7a341c889d71aa5692a9a2987. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/FIFMF9800144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb15c7ff221a3d95877644f380d4a22436a2713b2bd2c581dfe6213e30e9afef. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/FIWMA0200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bede6f4ff39774dfb20f2339791eec07000e7a97b46433ac8e94075798f2588. 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/FITAT0000031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c8ce4859fa4765311d61f0bf5fe4280d9d925c0d753f381d8e9fa6047b4f0ee. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/FIWMA0200003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b7375abd298e5e614aa36ffbba00551d7e85feec936e8a640f85f1aa47d77c7. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/FIWMA0200004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0d17395d85f5badd02796d7cc6885a16e02a85990c08995d497b783ae396b74. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/FIWMA0200005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d2c3e6f8f45bb80c1785d8e64e01975b62438196693c63999a06f84d4abcdab. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/FIWMA0200006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9bd8a9e0f6efadd86daa566412c4dd37ef2637ef837a6e7eda7694e44591e34. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/FIWMA0200007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0c892a2ed80c7f935e651621be7c3294ff7ed2064899f7b69adee0a2f741403. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/FIWMA0200009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d30337ac278908f3f35f356ce6d0d84d85ae0d4e6c6bac384e4ab54b83860bb. 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/FIWMA0200010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39a21fcbaba200e2b2915272243d4f83cba8c2e1748a81dc92764c42316a130a. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/FIWMA0200012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x678dc3c73957a70a5ab3168032b136b68e1b201ac96d8e4d08d127be0f88ed9f. 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/FITWP0300077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15fe093958c0f7734cfcef0a2ea9ac2fdba6b3928366bc74ed012c4be9e7069b. 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/FIVLM1000075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd04418020aa7ca65c1e871e40464797fdab4f1a7c1451bf3af467393b828332e. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/FITWP0200017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2a81ff7539ad88396e21b6f2f0bf9f9333b2ce3e87c124d242dfe01be98b19e. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/FITWP0300015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x617aeac428dda39b5f5dac08cdbc9fd6118fbb5f1beec341b2a123b9e547376a. 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/FITWP0700045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82069bf640e8be94c1f03f4cd16ff4c9ee7cb6ca2723ff33f04e0fdfdd3b2197. 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/FITWP0200006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd828139804e032a03e2806fb25a5978f081014d21deef9ae08ab68ab05f2195. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/FIVLM1500154.
Tuoksuvat tuomien valkoiset kukkaset (Valkoakaasiat)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5a11841e8da982de6840442c46f639ca4270637bc31e3d7685214dfcd7e7608. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/FIVLM1000063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67b632908cf8232ea4ace2acfe162f3f8572ec3bca57cafb89f48d702b28883c. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/FITWP0100003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x164559887c23fb2b264748b5308ac6b92b1e386c0596c74032f7a9bd4633299e. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/FIWMA0300326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2382c3da9be26a37915dfbb518f2ddad4d0ba8408f2b27b7e9254d45839837be. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/FIWMA0300424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x086b2f1d78046dc86897e5ee6bff57aa05ad91a846716808f05a1f08e1cb43da. 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/FIWMA0300425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd50756fbe5a9aedd58615afc4e963dec912de7c190b10a311de7c6000e8b0b34. 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/FIWMA0300427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd236264fcb04b08959f0db537819e055a381fc42bf7c68e3edd5d442992fbf5. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/FIWMA0300432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4952edd9dabd7e07589d5b6ecec013ab033fd1e534ea220ec78683462175d226. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/FIWMA0300434.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbab6ef7372dc2cea927ba991fdbf742b84c8b7550647b71497458203fedece31. 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/FIWMA0300435.
Rautalankaa - Tapio Rautavaaran Hengessä
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26fa44742e0a949a86bfc81c607c98d06238e1f4d421a6ec7ca17bfd0eec2593. 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/FIVLM1000081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88283db8f12a40531a255016d8829b40a8382296989415804ae7f7371e01011c. 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/FIVLM1000077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3206744c5a8bd51c14009d7b94880827d70d16a21056bbce91f1e5b246e4ac8. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/FITWP0100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72bfa6948a325ac735e30fc8108475ff4a6cc11bc9978dd2c10a8d48ada06a82. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/FIMTY9600107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fa8e24b61c8d6e6a0da482666a316208a03bea208f05c85108e53d35f826724. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/FITWP0100025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfde43a77dc1f7e8712595717262d0588056b1fb153ff03de98ee062ee298928d. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/FRX871529804.