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 0xee55c9be82d3e47f07eac5ac2da11b9f5b60d9d022407bcf7eebe1fddfde3125. 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/fe1bb62d-8d11-458a-8711-2e40222253bd.json and https://artists.proofprofile.net/proofs/artist/fe1bb62d-8d11-458a-8711-2e40222253bd.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 0x9ec9801c1fc1f3ac121859e50b4701c01c8508cbf17f84d82a96e5f220ac35b4. 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/AUMEV2470572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46932f49c928a3152d42676f4f14ee6803500b7f9b6586ede238febfc4a439a9. 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/AUMEV2470573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ad3954c892683e3b38544f17e648471661742c5245195e42a4902ba6e8df30e. 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/AUMEV2470575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12a122e8c6a91e1d454d7c34746305485e2f183a30ea7dcf6a116d724e611f68. 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/AUMEV2470576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9de89d5785844791c2c2289a6446964fd0ef93cf3be573ec13240b27f479c829. 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/AUMEV2470578.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f10d1ff74c200eea5e412954f84e8468c3038d7ee317a7b2668715772ac1834. 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/AUMEV2470579.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13928271b8d9c011fd8fe5fdd51e96610e4fbcc00d308c36d1e84ca5c95999b6. 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/AUMEV2470580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5375b60de223ed8bffd1eda43d88ab0fb47a024621a58c79321e252986e96ac8. 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/AUMEV2470581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a7dc2a0defe091b120a91d8fd5dec1576f3435ab0fa8b9021711450c190be10. 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/AUMEV2470584.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24cf337e13cd8ca41bf8b5a6b6cef09171ba9fa87865926ccaed4c7809a8f88c. 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/AUMEV2470586.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8d34a71f2af3dfa5105b0dff82f813f225003d72fd60ea9fe99be3963fe9aff. 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/AUMEV2444105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x188bdcde7b699016c023c5b77b04867ebf034ba69ecc3a4009f1a566ecf1892d. 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/AUMEV2444114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb4271a186dc8c666a72f7c25f4befdd0f7880b4b05f7580f53c3a83c5c54e04. 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/AUMEV2422028.
Sleepy Zelda: The Breath of the Wild Memories
Sleepy Zelda: The Breath of the Wild Day & Night
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7550143dcb5a54e31c304f1ff4c6a82da1523ce36589d53dcc5f6fbb18de3ff8. 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/AUMEV2414344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93eb83b323db6c8050fea4331b906c2263a2cab82eed61218e271ea42fb6d5c6. 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/AUMEV2414346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c488d79635a1c69773eb9ec71b86edb189ccab7d21f179b0b7e1eb731914314. 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/AUMEV2414350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a95650a19cd7964d4bcbca650c87061580e0553653f813db8faadddd07d7065. 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/AUMEV2414359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x959eaca22248c8720185d8a59bf5e4f80fe8f495137d43663b50736a6588b065. 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/AUMEV2414360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf785958950f7d81cca5025d94e7817070d1a86295fa6ed638ecc624ddc3d860b. 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/QZZ8A2371619.