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 0x066b964bb9ff92ab7b40d10602e0487914919cf3ff702bcf2d11253349c6d996. Chain 2 (Bitcoin): anchored in block 953592 (2026-06-14T05:36:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/03b88300-1567-4b68-a36b-277e21d9a4ca.json and https://artists.proofprofile.net/proofs/artist/03b88300-1567-4b68-a36b-277e21d9a4ca.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 0x2bc75cb0bebfe42abff2bc5eef69a88cff622c2656a024a49bef56069c305231. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZQAY2305226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5b09f1ca0b728fc3d3a61534dbfce117ecbb225689f7a74129f080fcf762e84. 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/QZQAY2386514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfeee76c95f24a263b1f83a545fd0c0e18c51197f8aa9736ef660dad0e42552a0. 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/QZQAY2305517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0b3225566f437c108c2053fe4e4e4d74943508e772f0a19341c2ee2dee5065e. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZQAY2344930.
Would It Be Easier If My Flesh Tangled Through This Blade
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbce28b2ef6ba193cd7f1744f7f87edd87395d5a716d882e03743d9bcfc243d79. 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/QZQAY2359540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bc75cb0bebfe42abff2bc5eef69a88cff622c2656a024a49bef56069c305231. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QZQAY2305226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bc75cb0bebfe42abff2bc5eef69a88cff622c2656a024a49bef56069c305231. 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/QZQAY2305226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe43c0c005d5efc26fce45af3971eec8cee73c82c98166ff1c0b6af66b26d7abc. 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/QZS7J2294582.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5b568bbd0d0dae7fec4cd129dd9be54574c01bb1e787f149eda6bbefddc8e15. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZS7J2222477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc3f9a63a97b018da09cb9d5d085436fc73474b9068372132fd14ac607ea8f44. 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/QZS7J2205888.
Discretely Shadowed Beneath A Mighty Wing
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d19b33b53990ffa11ca22a2c1e3b2d3a16f8acadc079f850bcb78207711854e. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/QZDA42266895.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf65471141043082b34074ebc929fbc92327f6e7cd562c2f5056ebd335f24ffd. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QZDA42266896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c99e33ef0a0fc9dd8acb0c2359bc133766a4d17308b6ee53af62d9d364c8800. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZDA42266897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ae744c3c2d001a52d315a6881064dbc56220ddcc2d332439abce8527b71b307. 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/QZDA42266898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d19b33b53990ffa11ca22a2c1e3b2d3a16f8acadc079f850bcb78207711854e. 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/QZDA42266895.