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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcab6681885e1e5f85d12a6896e2f5ee9d7c573ee4476bc4c99b60a08efa707fc. 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/ede8c1ee-ec2c-48ba-adb0-856c8dd873f8.json and https://artists.proofprofile.net/proofs/artist/ede8c1ee-ec2c-48ba-adb0-856c8dd873f8.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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89ab95225718ed80a75cf92ca83e12d06bf585a0f119988e28c26480d3e2f675. 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/GB2LD1800616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2ce19acd627987402cd6245c8d90cfdfa3b6aefe0aa4e574e43cb3dc0a1da8c. 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/FRD9M2403190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e47cb61017a23bc8e89c6f2eed8abdd354b8f8972452ce81efb883540da8fb7. 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/QZDA72435746.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5994a046cefae4975c77cde268bb5d87b540877be20167cf1d0cefcb8817e4c. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/UKDBM2100015.
Joyfulness (Alexa Harley Acapella Re-Work)
Joyfulness - Alexa Harley Acapella Re-Work
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba78c1db489796fc467fc2c5048afd853a60a7b9517f8898dc5861292171c9a1. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/UKDBM2000051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50cfcab7b7200c2fcbae88c4e9ccadc2afb3ac81302f72b29db5de6b25a46184. 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/GB2LD2010126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb658515fc7d76f4344af2e6cf96c685c1b01845a5dca5bb14fa8930c1efa6051. 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/UK6KW2000180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb47663ee9e82567b161b4e2286df0164aa1ac5e64912e164e73614fbbd01e51. 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/UKDBM1900038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f3f4531194f16b78aff5e4afd08dfd9d5c869c432056a50917ebdc862665014. 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/UKDBM1900046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7a0ef86ccc4e159093aed4aa826300440e21fe81b3d4796d80acd19c6aa794d. 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/GBPWR1600708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87b44346ae8b1b50d244529ef0577c0436e3d21875d0ebd0281611d22173ad2a. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/GBEUE1800068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb40f31dc7e274995d4188e8c2775d66fc9d4f758b5259afe055f32d49428333c. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/GBEUE1800069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd04985a43aa7d62641a75c5386b46d5a8e593bd244db33018640d9faecd15068. 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/GB2LD1700394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e21723f5ca61fe6437d89703cdc2748d01b94a4fd1c6c5774d4872bbef5b83f. 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/UKFJY1600005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0678522141b34bc3ea24913b6aae8a76dbf4115162054938951dc82f185c04dd. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T18:47:29Z), 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/UKFJY1600006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6f4920b49644d3dd35f467d9ace0f3e27204d48080142d8c6e386f07b6db5fa. 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/NLRD52117985.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5994a046cefae4975c77cde268bb5d87b540877be20167cf1d0cefcb8817e4c. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/UKDBM2100015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf265581665302d2a5142559713d390e7c78eec3e642dc19834ec46018a0e6ce5. Chain 2 (Bitcoin): anchored in block 960223 (2026-07-30T07:51:46Z), 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/UKDBM2000002.