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 0x8c02790378ceea1456b6ab880c17e09d273b5e9a537be75cc0e7ae1a9496001c. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3cca67fe-cae5-46bd-9603-70e12c43ec55.json and https://artists.proofprofile.net/proofs/artist/3cca67fe-cae5-46bd-9603-70e12c43ec55.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 0x4946343dda32ce1ff335b1ea5423ffad1b729fb9971a3ee049ae2d10bb2841d7. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/SMRUS0027922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15674ae23547606f1266ffe697dcd57f48e376b95aaae4e4719ade596a4d2f7f. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/SMRUS0033114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb9eac39bd0987f8d2d52d23827fa8536a92f7cff80e58b730014f8043342ad0. 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/SMRUS0033117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4919babc92e11941e4e7335fb54de613f5f9c9c7ff91ff726270ca8d8768740. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T08:06:16Z), 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/SMRUS0050519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09a0948e566da7cb5a17f3a5de072647e53fed5eb2243e4f222138e7b613f5cb. Chain 2 (Bitcoin): anchored in block 957620 (2026-07-11T22:32:56Z), 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/SMRUS0053421.
Все мечты наши сбудутся этим летом (Acoustic)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4aa0375c0d67a73adbcfc52d5cd93b47904911fe6aa4ad672f03df4538e5cb47. 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/SMRUS0057857.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x677f6b59ee474aa6b1980f6e9da5a7ee6b29ab7cae286c9bb3e79aba0669f55c. 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/SMRUS0057860.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc514770e64d0497b230fc7c13581e9c93140779dcd195b7f0766ed71203e7e1e. 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/SMRUS0057861.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dfe888b74bcdd0c47aff2b2e7cd6c03379863c78f66787b01f9865dcecf9224. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:26:04Z), 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/SMRUS0066819.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7e2472e8003d27db186c60fb3843ea6e60cb9414ad2a19333d23844e7875738. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/SMRUS0066820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0e68fea3c5c7e24bb2965b8593dca5571476024643e1962a8069a502474eb9c. Chain 2 (Bitcoin): anchored in block 958682 (2026-07-19T06:17:12Z), 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/SMRUS0066824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19d88b8b3c0bd94aef954ba4cd61fb6c770cb43cd4acae94a4a670f96ba3850d. Chain 2 (Bitcoin): anchored in block 957620 (2026-07-11T22:32:56Z), 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/SMRUS0066826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73d66aa809b5cec1dac4223f3bdd06528012c00eaaee13c60f4c854e815d7683. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/SMRUS0066828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x135df30ecc71aae0166c026e6c2e8ad62ccb59e1800f96f1e6a0672949bdfd1b. 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/SMRUS0073707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ce7aa0e48d592882799fb6ebd2ba5872e337c83f0e278735a8ff40dae2d8ef9. 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/SMRUS0073708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9cecab6a0d62e096c16833b9784e4937347dddb0618d9b160a8fb0bbb8683b5. 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/SMRUS0073709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5894423bdc782727fe9169f3e4d6b724507566d86e359dcd01f0995d7e09acc2. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/SMRUS0078353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ef2c9f3ddb9e76082964bfdf50fa13e5f5014dc583ff67c20595c6e370e227b. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/RUAGT2462596.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31140a11c885a56b3896ef55318e442b49e01ef15ff5c8e23431d6b8bab91f28. 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/RUAGT2462597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x414201e4f898829f880185243513f872b0808275b8344d86bb03e0422bdf66ec. 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/RUAGT2462598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x221f3a30da6d8c5e6425f300e74353fae67e0888cbab5eeb8ec2719a64372e49. Chain 2 (Bitcoin): anchored in block 958473 (2026-07-18T00:52:36Z), 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/RUAGT2462600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38e9a8b0784aac897cfb24dc698844e74f6e8719a874118581cadcd9155c69aa. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:24:58Z), 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/RUAH62511965.