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 0xc891e4807d100d8368107087296b903c30fc3c09c9406b7da9f1f879944c7885. 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/72dbf006-8b8d-4c0d-adad-46356d29ebec.json and https://artists.proofprofile.net/proofs/artist/72dbf006-8b8d-4c0d-adad-46356d29ebec.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 0xe3f2bb749018aa68f3846c69587c2249f48a15edeca1dd3f2ef43930aed655ff. Chain 2 (Bitcoin): anchored in block 957012 (2026-07-07T08:27:05Z), 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/FR9W12355521.
Cra$h (feat. Enchantée Julia & Jazzy Bazz)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf94f4713b6d83fdc5f9448cce09ed9c865d95c55f5f8aad45e7dd7d34f01a36f. 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/FRZ082200383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3f2bb749018aa68f3846c69587c2249f48a15edeca1dd3f2ef43930aed655ff. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/FR9W12355521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8a868c9a9aa0ab265a528e2c6d77d3c618f4d01a154c2910d9c2ef5e311d521. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/FR5T42100008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf94f4713b6d83fdc5f9448cce09ed9c865d95c55f5f8aad45e7dd7d34f01a36f. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/FRZ082200383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x460126f8c36dc35cbb184b665a260c53bc339b2706519ef2c7c81adcf013181e. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/FR9W12206548.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e74eaabdb614940382ee343e75941006fff7bf00a10c1c35caf933820524083. 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/FR9W12209498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8a868c9a9aa0ab265a528e2c6d77d3c618f4d01a154c2910d9c2ef5e311d521. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/FR5T42100008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5aa848249024213c23975b335a0e284c37fa6c3ef78239d2d4c3b1a95a380a9b. 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/FR9W11920070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x107c04aaf012220a12f892e35d3e43973884a8469823e2afc7747790ffdcbc2e. 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/FR9W11920073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x333dd909c70a9271cee6d61962a368bdd2b5809c33e5cae187eaa0a357f4b7c5. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/FR9W11920072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x316731c0725f74bd5f0dded53d66d12905090b20a98a1d6ed26adfbe18842be1. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/FR9W11922246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32e556a0dab3e6e2b9bf678166afa35c98d3cea35d4b8d712a5b797ab100644b. 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/FR9W11920074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbed882173e4c262ca39d2c311acfc09e0b7ccfea36acbcb4bb8a9a7c233a3094. Chain 2 (Bitcoin): anchored in block 957041 (2026-07-07T13:25:45Z), 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/FR9W11920071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd078f6632addf9ef9b94cd16762b79a56acb3d19ca6a9e001063ff69f9da0a11. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/FR9W12206545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cf3f6e6a76abf220b952eec0995b303e5dc61d036b5ac312257ad5422d20557. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/FR9W12206546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02f0787e14f4cdf3fa5a06450436648ca868ada839384cfaf61200f84655a028. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/FR10S2279984.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d265b42f47714de3380e90bc4627b4500823b0aa4c266bb26423d84d345dbad. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/FR9W12206547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x460126f8c36dc35cbb184b665a260c53bc339b2706519ef2c7c81adcf013181e. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/FR9W12206548.