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 0x327eac8080d1047eed4f9f10d2f916bcd3e2ec5a9d16c54e0f37e3a5bbcd4286. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1d3db89d-cc7b-4c5e-b3e0-ad7ddbd52d5c.json and https://artists.proofprofile.net/proofs/artist/1d3db89d-cc7b-4c5e-b3e0-ad7ddbd52d5c.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 0x4179543824402cb43414c1dbd5d24fa977f398d624a86311deef97011b7ed856. Chain 2 (Bitcoin): anchored in block 958111 (2026-07-15T06:58:20Z), 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/FI5CK1404760.
O.D.F.T.W. (feat. Emppu Suhonen) - Single
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e5d7c4583dc4d79cd07c27010f9648eb0d30d202b12bda3f7c26722c353d352. 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/USDHM1623722.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35786a5ecd642a7c3ef39fd76fb2a34d608b8b88fc030467a02b9f7dd375a400. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/USDHM1623728.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10a744ce489950a3c5c43f6a34c88b11aa89268d130fd72e618873061ccbd301. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T08:56:56Z), 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/USDHM1707582.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65594976607ccd1f73ad8b6713afe0326412c2fcd449f52481cd14ca41d40c30. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/USDHM1716472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a611eb331405e315a9ae685eeb5a7f8ca0398dbcfce62659e3c5d4bfbeefc28. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/USDHM1904955.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10a744ce489950a3c5c43f6a34c88b11aa89268d130fd72e618873061ccbd301. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-15T23:25:50Z), 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/USDHM1707582.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a3fc6d10692fc6e5bfe493679de9b17020ac7db8c9416406870b9fc09b3e289. Chain 2 (Bitcoin): anchored in block 958673 (2026-07-19T05:38:28Z), 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/USDHM1725940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0c1f068bc3c770a69a4aad05ade47e218742564c9011ef55023c84e526ab70a. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QZFZ72057198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7c0264c87ad3ae97c3efa441a7b7b59bb40070eca456b2b768381da5f15d59f. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T17:57:53Z), 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/QZFYZ2056947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedcdf156d4350182544596bb6461e22e0152da878691cad79ce8f24439f9f10e. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/QZK6J2121805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda8d8dfb2d92fe2650d46908c154985885fb57a87d31f47b2f8b24bc48dd25ea. Chain 2 (Bitcoin): anchored in block 958054 (2026-07-14T19:33:24Z), 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/QZFZ32240417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6935cd2eabc0095cf5ceb3c1f5085a6e7c7617b4114cf147713245d14d4b1b3. Chain 2 (Bitcoin): anchored in block 957587 (2026-07-11T16:48:26Z), 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/QZHN72347650.
Veli seli seli sul on meri täynnä selityksii
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5452f12f1bbe4bd3b23869d74059fdf9313d5397bff21baeab609aaa33d9b51b. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/QZK6G2374555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x079fa33ffa3caac21077b5dac6cba820f5bb62bf080db514549e7d8f16e7eca4. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/QZES52483857.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50a0100133b7462eff03f3a5cf9cb065631e596710f5e70d0fa4031a5371e81b. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QZZ7N2429060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x243447c275c78d3f453e89228927d0937954c0e0921750665af170a07c564b2c. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T08:58:55Z), 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/QZWFW2569514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x243447c275c78d3f453e89228927d0937954c0e0921750665af170a07c564b2c. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/QZWFW2569514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f1c523554beabe5821e3ed9eb44051553b595a53b865e93baa7671d9fee36aa. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZWFN2512062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe3ee15544fb1aae27d4bec758a05af02f756f5b47380ff66e75d8ea526f913a. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZWFW2574629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a39f8074935d7b73d5fcc22f299b4c8917f55a0ae5cb7c7729a2af6a4bdc964. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/QZWFW2574630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f87823975f66a0c29cb46ca3414b01180064bb3d23597aedb9186cde2795f7c. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZWFG2587140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x079fa33ffa3caac21077b5dac6cba820f5bb62bf080db514549e7d8f16e7eca4. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QZES52483857.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7964e0f42f2b778986b7141f47a353fdffcc98de201f6372ba0bba11af18c53c. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/QZWFW2574632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5452f12f1bbe4bd3b23869d74059fdf9313d5397bff21baeab609aaa33d9b51b. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/QZK6G2374555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6935cd2eabc0095cf5ceb3c1f5085a6e7c7617b4114cf147713245d14d4b1b3. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:34:19Z), 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/QZHN72347650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89ea2836b146df20d75be3017aa95a1e19090fd3e628a291cfc8f320c2f76117. Chain 2 (Bitcoin): anchored in block 958491 (2026-07-18T04:29:42Z), 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/QZWFW2574633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50a0100133b7462eff03f3a5cf9cb065631e596710f5e70d0fa4031a5371e81b. 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/QZZ7N2429060.