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 0xd2871d214f8e693984eb27d4b4de3d8e2c5d0e312ac6673f515be7f0a6892722. Chain 2 (Bitcoin): anchored in block 954048 (2026-06-17T05:00:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/42ac351f-c2a6-4865-983d-2ac5b88e978c.json and https://artists.proofprofile.net/proofs/artist/42ac351f-c2a6-4865-983d-2ac5b88e978c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Marinated Soundz Vol. 1 (Compiled By Nhlokzin)
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 0x171b82a6bc90b6ffeedd72ad0dd1ff276814c9e8e26734fd81a5588b89bb9277. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/GX73E2200024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd452b1690f7d4e1d8798d243ca207498cdc06a31171a4b49c5b2139c24f03ef5. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GX73E2200025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59bf1304b511127657644f5fac1617be13dcb11fab966035f586b13af9010516. 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/GX73E2200031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3140bd26f66924f5d83e645dcc5c03429e836bd6000e5e3a5c59bc06bd988625. Chain 2 (Bitcoin): anchored in block 960389 (2026-07-31T10:20:10Z), 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/GX73E2400004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x094a35cfc999ff7cd5ebdd61015c193db496bef83cd9f76316782c297b1f3290. 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/GX73E2400005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3afd430eb8664d2481109aab89104f33da368e23e2d7be153887b385a0c21efb. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/GX73E2400006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2101e6fd2af07906ac70a683f5bc66a0e90efca1159111d2c5bac215a347f7cd. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/GX73E2200017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabd0e5dfd4c8f67826c451f46c7f9f95db8b9db27c31bbcaf10450cb5d5e04fd. 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/GX73E2200018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x076ef78f9e7c3e2812bdb64d4cafbdb36497c8b4e21c5281f364c4c809a0bd62. 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/GX73E2200011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ed55bc08e1033d3e01484563521316d14e999dbf37fc5fdf528b1726fc0e831. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/GX73E2200013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41675ee890dd4283f86a90393da51422f2b2601fccb5812b64fe4253d2fea4eb. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/GX73E2200045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69dee1bc6b08888ce504c549119833eb37fdc84d08a2e10b79bd6828262de4d7. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GX73E2200048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec29ea5f9bafa1659d840b54ed077716c0efe5dc2bb6cfa1323368abfd791aa3. 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/GX73E2400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa29cd876da521025af77513dee0e6487967c9a43d0c8b18a68dca31d531f9e76. Chain 2 (Bitcoin): anchored in block 960362 (2026-07-31T06:58:00Z), 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/GX73E2400002.