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 0xf36fd2911768a4ccb8105578d0bb4da9c780f468da74a9f7d2689fb48a29cceb. Chain 2 (Bitcoin): anchored in block 953812 (2026-06-15T17:06:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f7b468a6-6ba1-4307-bca0-3f04a6eb463f.json and https://artists.proofprofile.net/proofs/artist/f7b468a6-6ba1-4307-bca0-3f04a6eb463f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Of the Gospel, House and Amapiano, Vol. 3
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 0x7d979759eff8e4b82190e8c62a6a74ba5a698f929745b24131e6b84993e3fe97. 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/ZB6RV2400164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3091e797f3bc9b5eea015f4a628c8b16851c743ca27083e7ceb5df2c3b7bc103. 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/ZB6RV2400167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea17d40e3a0a269f4a7eda77e5f6aa519e1949c815e2ae38e6ffa84c7dfd61bc. Chain 2 (Bitcoin): anchored in block 957020 (2026-07-07T09:18:01Z), 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/SE6HN2406185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3305e82d308bba16986f1b68c3366901b0f20133b1ac74bc11f99aa51c1aafc. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/ZB6RV2400012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7715a4b23cc6003a7d28fc1677b1eb32b59fe380e6f3a65f10ea6b9c64e067ca. 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/ZB6RV2400013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8356783e2098ffe59119f4005bd4df6ba3bd63cd617a1578b3633bc6f59d52bf. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/ZB6RV2300020.
Empty Frames For Christ: A Christmas Album
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa871b0998f40cebc1bc27ee9c3353b64325f32a2f1b0e5c57fe1defa2943c440. 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/ZA26R2300004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x287afa034b737e1d10fc8d3f9b628334d19ad032fa20afc852f3c0aff2f841c6. 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/SE5752302373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84264c9d88baf075fa6068cbfc90f2a6605fbc43595625ff771f265ad951d9d1. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/SE6XX2296219.
Of the Gospel, House and AmaPiano, Vol. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12b37bb3161a74d5fbff6a4bf32a6ef2c9ddf9706d7380d534f3093c37a0887d. 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/ZA26R2200017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x081ed396460f35a503fd86549b46a26f9235414f34fbfe2be352c70672b38fb2. 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/ZA26R2200011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5ad297eaca0b3e130319b03acd87e490333c4828d5c8391bf4a6f67dcfe363a. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USA2P2201976.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1da76c768f2287644be3301487ebfc7bfb22118b8170a50808a4b8eabe421a20. 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/ZA26R2100033.