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 0xd18676c10d4116b1598747a0295283e9e0ca8953724458f46035a76719d4e618. 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/4a254cb0-38b2-4f66-9ccf-6e726626ff7c.json and https://artists.proofprofile.net/proofs/artist/4a254cb0-38b2-4f66-9ccf-6e726626ff7c.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 0xa62f87d92c1a4347589257006a22eac4b0780a8117942dd5a7b698dbf8bd2789. Chain 2 (Bitcoin): anchored in block 958535 (2026-07-18T09:42:49Z), 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/QMBZ91333948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33648026ad7b5eec0443566e506bdf25040d394eb55006ba66fd1a8111485d9b. Chain 2 (Bitcoin): anchored in block 958667 (2026-07-19T05:04:54Z), 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/QMBZ91333967.
Счастлива, потому что беременна: синий альбом
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3c10d917561748355428c308549ba42b98a563de841d22e76b07fc1ca3394a2. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/QMBZ91333981.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7569e66dd357307127fddb0b25545389369f2fb827fb0cf335db73dc75616ef3. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T17:41:15Z), 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/QMBZ91333985.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x409f1901e174c7931df6fa288c6dc3bb6943f8bc844275ca8f53bfeb31f2b5bc. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T19:03:53Z), 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/QMBZ91333989.
Счастлива, потому что беременна - зеленый альбом
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27d134ec512dfb25a65d959da756a491e06dacef904c1e7fd55b31e28803a481. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T17:44:04Z), 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/QMBZ91334007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4595734aaf93fffbffbbe4488a33734fde4af9497e1f66fbf287099e82a78dd. 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/QMBZ91334026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7267d5e52c225a89255f20cba96f737495efd2ee27b80731fffc0194bd5b1a18. 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/QMBZ91334028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc23517dbc0eefb33378ae3762d6d719ca823f50882909e04224d47cefbde2312. 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/QMBZ91334030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26875346f3dfbf93e72b103903f92487fc38db2ad09aadac4fde6b572f6c19cd. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T21:47:02Z), 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/QMBZ91334033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60931befbad6357a3a69340ca607e8d09114da7edb8bae7321a6a66636a727ff. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QMBZ91334077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8c04647ac13c4015eb249026f1bdee9a5ac263ff1018790205e1509f2de6a11. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QMBZ91334047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb13549bccb8b2069d8183d3e84f6c26d2d003083af7ed3ed749772cab2a2699. 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/US6R21441625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67c9dc5741fc91cf86f7da48b45ac94a498524e7167b06844cafb9a6f0f26535. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/TCADY1843428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57be0acd0718a7db3b2e5724e2c47fa8ddc31e91684218795ed4072b660c31d0. 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/TCAEE1954931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c165fc923ccae9928e1511b65ea67a4aa8792c95e75a705b534127d07285219. 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/TCAEU2048850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x012fb417bb281692652791b410b8760f649729e44d2034f0698bfad3f22b12f5. 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/TCAEW2038409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb612481b3674f7dc9c0b3d9e975f4267c263cbdb34cb955781cd71f486cc9816. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T22:26:40Z), 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/QZGLM2144163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x274da83af84fdb6766199eaf3762254e398f5e4706228d7857e7ba752877e3b1. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QZGLM2144172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe117373b77904e98713d8f7451873215b129c04be10d9f362baba7e07e770fdd. 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/TCAGC2253357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa33c21df6571633a150826c6307678a76030a286482183035af89a62178bf154. 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/TCAGD2226659.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16ab503f39c59cb4eaa7a11895ab693f7cf7811aebd8f73107393a75929b7a59. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/TCAGD2241211.