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 0xbf23a6bfe2c4d3862fb31749df2f9f889166d6fff8ec0c0b6001ce6fb0c8b94e. Chain 2 (Bitcoin): anchored in block 954062 (2026-06-17T07:39:10Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/477e4b39-88dc-4a40-856b-ca40756b32b5.json and https://artists.proofprofile.net/proofs/artist/477e4b39-88dc-4a40-856b-ca40756b32b5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Assorted ASMR: Slime, Tapping & Whispers
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 0xdec2827c90f71a32ef772b487172d434c51a3a09c8abb1fef86db94686952928. 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/GBENT1675591.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a6ee8467d2acbc38f442988caf04fb6509e5c2a32322ea4c587582fd189a25d. 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/GBENT1675593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c80bb6c3f34c0db8b3205c6a731c77614592ab7aa813cdea7cc1f1e17307ffe. 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/GBENT1675594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaaa247cc93fbbbcd2870e517fc0e61f6964e46c657c5ed6637a485a2df48939. 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/GBENT1675595.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcda46b4786b35ae1a95f09975796a751f6604ceb9606658b6f6d02f51ee3b351. 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/GBENT1675596.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23f188bd76a2549d46b59c28087349eb34c0459383d3694adf415c4fe4a1bed9. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/GBENT1675592.
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 0x116daae5d9e425d1c287983e908e7a1ff66152b7fe58653930608e4c21d97241. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/GBENT1675598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x869cfa2b5216cf9b3b51c557ee0c361ccf467537bf8ef568408ed5aff47ae2eb. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/GBENT1675597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x748fec02d19fb6f10ff3018bbf81a01c8d7b911b7737c0246a950cb5af8c5585. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/GBENT1675599.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4411ebd77a15b8a6ec96e8f7a61a5ba1f779156e045055a84b199c86c32fe25d. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), 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/GBENT1675600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1363c73ea830f8f0f2d2093253a4ac5b4988a9a1bd0c8f0caefe436d562161d5. 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/GBENT1675609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd23ddd9ad3d4badfe80776f47f995a6dfcc05d28bcf570826de69ec19e135662. 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/GBENT1675603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f2d2959434798debe9506a2211aa18174055082fbecc3c16ef6a854a1388b92. 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/GBENT1675607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2388249938cecd87ed37d8c5e36f3c59477f9e85ece270b681fb63a17dc8a503. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/GBENT1675605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d56e0c58e874316b24a3a047cb306dec46536ef6e827a0832ae942293f7a6e8. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/GBENT1675606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb812b25b68f53bf24446502a88e68672e1bbe1bbeb1820240d13e5811a5cf657. 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/GBENT1675610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x389d5594fe0038653c197732b76be6dbe454ccbef3466784903546b02835fded. Chain 2 (Bitcoin): anchored in block 960489 (2026-08-01T00:40:43Z), 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/GBENT1675608.