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 0xf837210f3c47789657e094d360744d13fa0d0ec1b608ae4e777d1ba4ddc35ce2. Chain 2 (Bitcoin): anchored in block 953770 (2026-06-15T09:50:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/aa07553c-d232-4884-b5ce-79349f6590d5.json and https://artists.proofprofile.net/proofs/artist/aa07553c-d232-4884-b5ce-79349f6590d5.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 0x09d95574c6bd3cf62749e035eade609939c2aedd0c1084f5f0768de70c4547b0. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/USTC00958286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ce15a3987b3fe3ef94c3540a6695af7f40e81ad5b99715fd57feeadc4232554. Chain 2 (Bitcoin): anchored in block 958611 (2026-07-18T21:24:44Z), 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/USTC00958287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9f47382a8e0705ee5598d568c25a84d28cee47bea58b3f46f241d86c37707d7. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T08:59:55Z), 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/USTC00958289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd460ee98c45a29235ccde6fdc7fcb4a14d56ade4b3173663c35c203dfddaef3e. 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/USTC00958290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67469e8553d49bdbbb07eb5c205018bdbd43f6d6ae65e9a537b1c094807c0f78. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-02T22:05:07Z), 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/USTC00958291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc265136deb53385676923ad54cf38f4607589a6cae55c3e34656623649ae9dcd. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T08:25:52Z), 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/USTC00958292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33c1ba19b2ccfe311eb87ed86839c072d3cd20643efcde3785de8b7c70b08fdb. Chain 2 (Bitcoin): anchored in block 958613 (2026-07-18T21:35:09Z), 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/USCW62492304.
Science Fiction Reality (Charged Version)
Science Fiction Reality - Charged Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x360e8f2f2faa1e87b994e326267e2849131004deb7b52e7b72e994783cb8b2e8. 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/USCW62522307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fcc879247b25429ae43fb476823796e42d5849ccd1dcaa6cafd7ffea77f53b3. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/USCW62522303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09d95574c6bd3cf62749e035eade609939c2aedd0c1084f5f0768de70c4547b0. 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/USTC00958286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa02a12a6ea59ace9898b6544ed4fc69edd935ed1cfa39502ea7f2e485269f1aa. Chain 2 (Bitcoin): anchored in block 958410 (2026-07-17T12:18:07Z), 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/USCW62492305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33c1ba19b2ccfe311eb87ed86839c072d3cd20643efcde3785de8b7c70b08fdb. 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/USCW62492304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ce15a3987b3fe3ef94c3540a6695af7f40e81ad5b99715fd57feeadc4232554. Chain 2 (Bitcoin): anchored in block 959132 (2026-07-22T13:20:46Z), 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/USTC00958287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fcc879247b25429ae43fb476823796e42d5849ccd1dcaa6cafd7ffea77f53b3. 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/USCW62522303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x822b0adaea854286b7f532708a7c12bb3d331c39dc7d954c8a101f4c75ed6b05. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/USCW62522304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdb8b01ca51b6e230f62c1858f66b54eb97e4ab841ca03d4f2524bb6aba8b716. Chain 2 (Bitcoin): anchored in block 958734 (2026-07-19T15:50:36Z), 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/USCW62492307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fb7daa865b9325834f9874a9499f351e85a4a2df90a37a6930d55f73f139b37. 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/USCW62492308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bbf67809000255c29efcc7f5ad570b74a265ea2f15601a993d512b0d33734ec. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/USCW62492306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a38cdb022bf20791c5e3f0ddeade8ad4472040f3bee3cbdebeabe0f4fd77775. Chain 2 (Bitcoin): anchored in block 959091 (2026-07-22T05:11:09Z), 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/USCW62492309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x163472612428f7db70831266180d18aa2dbc160bb6f6b7df717c7d137c7e9f30. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T14:03:22Z), 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/USCW62492310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8330795f007030a69931f9ac8e614cb5ccad677b9c3d9fcbc2325084906513ff. Chain 2 (Bitcoin): anchored in block 959103 (2026-07-22T08:27:26Z), 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/USTC00958294.