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 0x219f776d7952f1921268a077000cbdc93775bbf6d55ac1221e261117d7b308c9. 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/b7afb987-5039-4ef0-8173-4ebed15ab8c6.json and https://artists.proofprofile.net/proofs/artist/b7afb987-5039-4ef0-8173-4ebed15ab8c6.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 0xa42afb4d199061ae356777689147bbb6365eba26785f6c0d78ca98054225ec43. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/TCADD1712575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x617930ac8a238badd24c05429f707be93f2e40207b5bcdf6119d90cd68e70a2e. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/TCADE1719761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1a4a8afd059271fd45d6929a4bc13db273113e0f95bae083164baa7e8a03b88. Chain 2 (Bitcoin): anchored in block 958696 (2026-07-19T07:45:31Z), 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/TCADA1769111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa38ecdd53b6fc54339f9f16e3fb8952c6169a7b7b283fc74efd89f6b1016208e. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T09:42:22Z), 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/TCACX1761768.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6e3cb5460ac831f7506b16e4d45882a71b886ba3ea2126d1ff46fff4a0886a2. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/TCACR1668323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa656770caa04998935da6e148438bf94b5b3c31743f47bbc71d0c24a005e782e. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/USYBL1801606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a15826d9c1723e0ecfdedfe7136226a5a57cfa7398930943f256de595593bf5. Chain 2 (Bitcoin): anchored in block 959002 (2026-07-21T13:43:10Z), 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/TLREW2221899.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7787d81afc528f039226e3e00e60e108bd10df1de140e919172c8d3cc1e36dae. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T18:58:47Z), 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/TCAFI2169307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9444ba5350a5782ff63cb7d06cb9da8f668d7a7bf53e42cdad42192cfcd604cc. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T09:05:44Z), 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/QZVEM2321225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99e377e5ac521d316d83d913e2aa64f67802c65cf8ddc87b8c43b8890b589db9. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/QZVEM2357242.
antidote (feat. Kojey Radical & Siimbiie Lakew) - Sped Up Version
LACUNA in The House Of Mirrors (Sped Up)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89ccd61f9cfad3f9f66a5f69acab172b57a56cabb186d033238e848adf940c6b. 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/USAT22307594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55ac94a98b7cc934bd6ffeedaf3d3f4d9ac3927e82b699a870bd6b0931c1c907. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/QZTPX2262863.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x052a0318cb51636a9d44f8f3538c7b3e10bed1ef32d8daaef18b5eff3547d9ed. 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/QZHZ32191529.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3bda2671c5fb6f2a9a5f4e3440aec6734eaefd5bc68c40d6fc1bc19a933694a. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/TCAEW2018064.
antidote (feat. Kojey Radical & Siimbiie Lakew) - Slowed Down Version
LACUNA in The House Of Mirrors (Slowed Down)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22b1bcf2a02ef2fcfd64d21a02e2c7f0b9791394688f99fe315097d34b084ed8. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/USAT22307596.
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 0x574883bf86f4185f1cfae4d85814f43f5d7d5a08ca6c106e9b6ea914cfd090ef. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/QZTPX2262864.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x616c5fd827e31b2fb4a9b89ef7a1425ab03a5ee50b7b7d95fa1dbbe60348a8f8. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/QZMHM2060296.