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 0xf6298bbf255c24f9956d4bc5de2599826a4b10f205142ee8b11e11448e0641ca. 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/2f3a5530-096f-4021-a128-5c8e3b58028c.json and https://artists.proofprofile.net/proofs/artist/2f3a5530-096f-4021-a128-5c8e3b58028c.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 0x5fe55fae7364fc2efa87a490cf596543b78d85f0d017365f99ed1f88d191fe66. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/RUA1D2163694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fa453e8a9d8f18926ee3153199d026fd0113beb41142deb1b4440b75acc76c6. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/RUA1D2163697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7da143ba1a9f5806ae7c327af10af8fa26b7f6ac537561fa7c071fb12dda2fa. 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/UKU932246534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfc17b32ec2f87bd26e83d5f2b84d43597e027bc3f3aeb4e83d4a3cffcf6d2a7. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/RUA1D2256340.
торговый центр (prod. by whyapril, owleeng, fxckyeahako)
торговый центр - prod. by whyapril, owleeng, fxckyeahako
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1577a7176345785cd197b408fb87ab222c32f7225b995a0ae0be9d2cc53cccaf. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/QZL5N2211999.
не виноват (prod. by greyrock, tear!ess)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0f592072b5566620d8784d61a8e7ec7c9a882b4ccfc3c0cd11513012d120b6a. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/RUA1D2301174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3975c32a0705461bceab29df2f222bdb1e38d1a511622fbfe80f86d6ea027371. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T10:10:06Z), 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/RUA1D2371249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83560ac8992ee8fbaaf11ccd8677104bbe17f17ec9ec8d20f060b7c41adab474. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/RUA1D2371250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7df4b1225b8ae3e2c21aa9aa1aa7bf5678f922d262c70ec8e52c9f6119d822cf. 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/RUA1D2371251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf38a91c86f157cbb97e8eb993c61271673d8392a8a59d39e812ceb4942620f8f. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/RUA1D2371252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1c5d806f10fcdefda0db2046386d7adb78a2ca6bffbf4a3276954ade5a14e2c. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/RUA1D2371254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1262015d57c901db696a6b086e432954ff73005009d4a388d81262c10e36d9ac. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T11:01:10Z), 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/RUA1D2371256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e6ffd5c9ddbf6a32fc631421670aa61269a50552f37a9d2b6554035db961d89. 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/RUA1D2371259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd01b6334c7cb624391e4dda6cd14ff530b20f02d1d06bdd9b45ccf7db19160c9. Chain 2 (Bitcoin): anchored in block 958371 (2026-07-17T08:03:08Z), 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/RUA1D2409109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49d1356591b73631bf93e00202d0d59bb0bc341c218cfd8e0c6029a103b764e6. 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/RUA1D2409110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe66fc8c6e7fa9e072f2af2dc4bdb6ed117c2d6fe711603d641b1aec527ef85cc. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:52:27Z), 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/RUA1D2409111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5ac202da3b6e099937da784f8143867ad2425971455a620fdbad6ae0ca9bed1. 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/RUA1D2409112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa4d1fbb1d6a725e7711f9ec2d65f375468d412bb11409c30cac12fbb528220c. 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/RUA1D2409113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e494ed498e798b31de46dacab5d6454a72e82389ecc9c3b80dd33ba5aa735bf. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/RUAGY2400165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98d19264a0896063f7f628a5939d68ae95fb7888b094b95844c2d8ab3e9b6aad. Chain 2 (Bitcoin): anchored in block 958390 (2026-07-17T09:35:49Z), 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/RUAGY2400167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf122a23f64de1814d16b26c7cd8a65b2a7885a8bf3f13dee7cf2bff5e57144df. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/RUAH62418641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf14020832b582fd8c9ec163ac3c1e3d1abc0981b08d31cc384ba7845b9bbac07. 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/RUA1D2503830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c384a05b9cbd66d8f764ac6fcc922431f4787e61586051fbce9834f335d87bb. 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/RUA1D2511791.